Gregory is doing his experiment for the science fair. The above table shows the data he collected. Based on the table, what is the
best description of what Gregory wanted to know?
A) Which brand and amount of fertilizer will work best?
B)
Which brand of fertilizer (A. B. or C) works the best?
C)
Which amount of fertilizer will show the most growth?
D)
What level of fertilizer is the most that can be given before growth
declines?
Answers
Which amount of fertilizer will show the most growth.
Based on the table, the best description of what Gregory wanted to know is:
C) Which amount of fertilizer will show the most growth?
This is because the table provides data on the growth of the plants based on different amounts of fertilizer (1 cup, 2 cups, 3 cups). Gregory is comparing the growth of the plants at different fertilizer amounts to determine which amount results in the most growth. The table shows that the plants had the highest growth rate at 3 cups of fertilizer, indicating that this amount resulted in the most growth. Therefore, the question of interest for Gregory is to determine the amount of fertilizer that leads to the highest level of growth in the plants.
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Related Questions
Your company currently uses a process with a similar cost of materials that has an average
percent yield of 91 percent. If the average percent yield of this process is higher than that,
this could save the company money. What is your recommendation to the company? Please
support your recommendation using your data, calculations, and understanding of
stoichiometry gathered from this lab. /
Answers
The second method is recommended due to high efficiency.
What method should be recommended?If the average percent yield of this process is higher than that, this could save the company money so my recommendation to the company is to adopt the other method for production because it is less costly and providing similar result.
In conclusion, the second method is recommended due to high efficiency.
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what is rigor mortis
Answers
The natural process of the body's muscles hardening after death is known as rigour mortis. Adenosine triphosphate (ATP), which is necessary for muscular relaxation, is depleted, which causes it to
The postmortem condition known as rigour mortis affects the body's muscles, causing them to stiffen and make movement impossible. The lack of ATP, the energy molecule necessary for muscular relaxation, is the cause of it. When ATP generation stops after death, the muscles constrict and stiffen. After 2-4 hours of death, rigour mortis normally starts and can persist up to 48 hours until the muscles start to relax as a result of decomposition. Age, temperature, and physical state at the moment of death are a few variables that might affect the severity and length of rigour mortis.
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Part 1: Predict which compound in each pair is more acidic. Explain your answers
. a) cyclopentanol or 3-clorophenol
b) cyclohexanol or cyclohexantiol
c) cyclohexanol or cyclohexanecarboxylic acid
d) 2,2-dichlorobutan-1-ol or butan-1-ol
Part 2: Predict which compound in each group is more soluble in water. Explain your answers.
a) butan-1-ol, pentan-1-ol or propan-2-ol
b) chlorocyclohexane, cyclohexanol or cyclohexane-1,2-diol
c) phenol, cyclohexanol or 4-methylcyclohexanol
Answers
(1a) 3-Chlorophenol is more acidic than cyclopentanol (chlorine atom electron-withdrawal). (1b) Cyclohexanecarboxylic acid is more acidic than cyclohexanol (stronger carboxylic acid group).
(2a) Propan-2-ol is more soluble in water than butan-1-ol and pentan-1-ol (hydrogen bonding ability). (2b) Cyclohexanol is more soluble in water than chlorocyclohexane (hydroxyl group enables hydrogen bonding).
Part 1: Comparing Acidic Strength
a) 3-chlorophenol is more acidic than cyclopentanol. This is because the presence of a chlorine atom in 3-chlorophenol can stabilize the negative charge on the phenoxide ion through inductive and resonance effects, making it more stable and easier to form.
b) Cyclohexanecarboxylic acid is more acidic than cyclohexanol. The carboxylic acid group (-COOH) is a stronger acid functional group compared to the hydroxyl group (-OH) present in cyclohexanol.
c) 2,2-dichlorobutan-1-ol is more acidic than butan-1-ol. The presence of the electron-withdrawing chlorine atoms in 2,2-dichlorobutan-1-ol enhances the acidity by stabilizing the negative charge on the alkoxide ion formed upon deprotonation.
d) Cyclohexanecarboxylic acid is more acidic than cyclohexanol. The carboxylic acid group (-COOH) is a stronger acid functional group compared to the hydroxyl group (-OH) present in cyclohexanol.
Part 2: Comparing Solubility in Water
a) Propan-2-ol is more soluble in water than butan-1-ol and pentan-1-ol. Propan-2-ol has a hydroxyl group (-OH) that can form hydrogen bonds with water molecules, increasing its solubility.
b) Cyclohexanol is more soluble in water than chlorocyclohexane. The presence of the hydroxyl group in cyclohexanol allows for hydrogen bonding with water molecules, enhancing its solubility. Chlorocyclohexane, on the other hand, is nonpolar and lacks the ability to form significant hydrogen bonds with water.
c) Cyclohexanol is more soluble in water than phenol and 4-methylcyclohexanol. Both cyclohexanol and phenol can form hydrogen bonds with water, but phenol's aromatic ring reduces its solubility. 4-methylcyclohexanol is also less soluble than cyclohexanol due to the steric hindrance from the methyl group, which disrupts hydrogen bonding.
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What are the differences between sand and potting soil? Are they both mixtures? How do you know?
Answers
Both sand and potting soil are mixtures because they both contains more than one type of substances. Both are composed of minerals and different substrates.
What are mixtures ?Mixtures are substance formed by the combination of two or more components. The mixtures can be homogenous or heterogenous. Homogenous mixtures contains only one phase.
Heterogenous mixtures are of components with different phases. Sand is an example of heterogenous mixture. The major component of sand is silicon dioxide. it also contains grains of other minerals.
Potting soil is a mix of soil and minerals used for plantation. It also known as potting compost since it contains wood products, vermiculates, clay etc. Therefore, potting soil is a mixture.
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A toxin that binds specifically to voltage-gated sodium channels in axons would be expected to.
Answers
Hi, I hope this helped :)
The percentages of carbon dioxide and oxygen have changed from Earth's early
atmosphere to Earth's atmosphere today,
Explain the processes that led to these changes.
Answers
Answer:
Explanation:
The early atmosphere
Scientists believe that the Earth was formed about 4.5 billion years ago. Its early atmosphere was probably formed from the gases given out by volcanoes. It is believed that there was intense volcanic activity for the first billion years of the Earth's existence.
The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. There were smaller proportions of water vapour, ammonia and methane. As the Earth cooled down, most of the water vapour condensed and formed the oceans.
It is thought that the atmospheres of Mars and Venus today, which contain mostly carbon dioxide, are similar to the early atmosphere of the Earth.
Scientists can’t be sure about the early atmosphere and can only draw evidence from other sources. For example, volcanoes release high quantities of carbon dioxide. Iron-based compounds are present in very old rocks that could only have formed if there was little or no oxygen at the time.
Changes in the atmosphere
So how did the proportion of carbon dioxide in the atmosphere go down, and the proportion of oxygen go up?
The proportion of oxygen went up because of photosynthesis by plants.
The proportion of carbon dioxide went down because:
it was locked up in sedimentary rocks (such as limestone) and in fossil fuels
it was absorbed by plants for photosynthesis
it dissolved in the oceans
The burning of fossil fuels is adding carbon dioxide to the atmosphere faster than it can be removed. This means that the level of carbon dioxide in the atmosphere is increasing.
How many atoms are there in molecule of glucose (CH12O6)
Answers
Answer:
One molecule of glucose has 6 atoms, as you can see in carbon's index. ( C6 ). In 20 molecules there will be 6⋅20 carbon atoms.
Explanation:
In clinical applications, the unit parts per million (ppm) is used to express very small concentrations of solute, where 1 ppm is equivalent to 1 mg of solute per 1 L of solution. Calculate the concentration in parts per million for each of the solutions.There is 43 μg of calcium in a total volume of 87 mL .concentration of calcium: _________ppm There is 0.91 mg of caffeine in a total volume of 105 mL .concentration of caffeine: _________ppm There is 0.47 mg of trace particles in a total volume of 95 dL .concentration of trace particles: ___________
Answers
Answer & Procedure
To solve this problem you will need to transform all the concentrations to the equivalence of ppm, which is 1 mg of solute per 1 L of solution.
Calcium: There are 43 μg of calcium in a total volume of 87 mL.
\(\frac{43\mu g}{87\text{ mL}}\frac{1\text{ mg}}{1000\text{ }\mu g}\frac{1000\text{ mL}}{1\text{ L}}=0.49\frac{mg}{L}=0.49\text{ ppm}\)Caffeine: There is 0.91 mg of caffeine in a total volume of 105 mL.
\(\frac{0.91\text{ mg}}{105\text{ mL}}\frac{1000\text{ mL}}{1\text{ L}}=8.67\frac{mg}{L}=\text{ 8.67 ppm}\)Trace particles: There is 0.47 mg of trace particles in a total volume of 95 dL.
\(\frac{0.47\text{ mg}}{95\text{ dL}}\frac{10\text{ dL}}{1\text{ L}}=0.049\frac{mg}{L}=0.049\text{ ppm}\)the force that one surface exerts on another when the two rub against each other is called _
Answers
Answer:
friction
Explanation:
In a simple distillation setup, what is the sequence of equipment from the bench top to the round bottom flask
Answers
In a simple distillation setup, the sequence of equipment from the bench top to the round bottom flask is:
ThermometerDistillation flaskLiebig condenserRound bottom flaskBunsen burnerWhat is Distillation?This is the process in which a mixture is separated through selective boiling and condensation.
The distillation flask and liebig condenser are usually located above the round bottom flask in the set up.
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giving brainly if correct
Answers
Answer:
i think its magnetism
Explanation:
Proteco Oils Pressed Purity are a range of cold pressed oils ideal for cooking. The high quality oils are extracted from nuts, fruit and seeds. They are flavoursome and are naturally chemical and preservative free. Pressed Purity are one of the few oils on mainstream supermarket shelves which is 100% Australian. They offer a wider range variants than any other oil manufacturer in Australia. Proteco Oils’ state of the art refinery in Kingaroy, South East Queensland is uniquely equipped. With highly specialized equipment for complete oil processing on a large scale. Now, exporting into China and throughout Asia Pacific, this family owned company has grown with the help of Evolve Brand Design
Market Mostly females, 25-60+ years, with a contemporary cooking attitude. These consumers are health conscious, seeking natural and chemical free options for themselves and their family. The secondary target audience are men and women of all ages. This group consider themselves to be gourmet home chefs and are open to new tastes. Communication of the product concept was critical with the initial brand name development. Evolve Brand Design presented a range of concepts and the brand name ‘Pressed Purity’ was chosen. This concept was the winner as it implied the chemical free processing of the raw crops into edible oils. Likewise, the design for the brand is an analogy for pressing the oil from the fruit, nut or seeds using a vice. The Pressed Purity distinctive edge is threefold. Chemical free, 100% natural ingredients and genuinely Australian. Export opportunities have risen due to the third, very important, unique selling point (USP). In addition, they have a wide range of flavours with applications tailored to a range of food preparation methods. From flavourful salad dressing oils to baking and high heat applications like stir-frying and barbeques, Pressed Purity has a solution
Q.2.1 With the use of examples applicable to the case study, explain human resource forecasting. (10)
Q.2.2 Explain the concept of product differentiation in the context of Pressed Purity. (5)
Q.2.3 Recommend a work-study method for Proteco Oil’s refinery. (10)
Q.2.4 Identify and explain the criteria Proteco Oil used for market segmentation. (10)
Q.2.5 Identify the operational process used by Proteco Oil. Justify your choice. (10)
Answers
Q.2.1 With the use of examples applicable to the case study, explain human resource forecasting. Human resource forecasting refers to the process of estimating and planning for the future staffing needs of an organization.
Q.2.3 One work-study method that could be recommended for Proteco Oil's refinery is the method of time and motion study.
Q.2.1 It involves analyzing the current workforce, identifying future workforce requirements, and developing strategies to meet those needs. In the case of Proteco Oil's Pressed Purity, human resource forecasting would involve predicting the number and types of employees needed to support the company's growth and expansion.
For example, as Pressed Purity expands its export operations into China and throughout the Asia Pacific region, they would need to forecast the additional human resources required to manage international logistics, distribution, and marketing. This may include hiring employees with expertise in international trade, language skills, and knowledge of the target markets. Human resource forecasting would also consider the need for additional staff at the state-of-the-art refinery in Kingaroy to handle increased production and quality control.
Q.2.2 Product differentiation refers to the process of distinguishing a product from its competitors by highlighting unique features, benefits, or characteristics. In the context of Pressed Purity, product differentiation is evident in several aspects of their offerings.
One example of product differentiation is their focus on being 100% Australian. This sets them apart from other oil manufacturers in Australia who may rely on imported ingredients. By promoting their Australian origin, Pressed Purity appeals to consumers who prioritize supporting local businesses and value the quality associated with Australian products.
Additionally, Pressed Purity emphasizes being chemical and preservative-free. This addresses the growing consumer demand for natural and healthier food options. By positioning their oils as naturally chemical-free, Pressed Purity differentiates themselves from competitors who may not have such a strong emphasis on natural and chemical-free products.
Q.2.3 One work-study method that could be recommended for Proteco Oil's refinery is the method of time and motion study. Time and motion study involves analyzing and improving work processes by observing and measuring the time required to complete specific tasks or activities.
In the context of the refinery, a time and motion study could be conducted to identify any inefficiencies or bottlenecks in the oil processing operations. This could involve observing workers as they perform tasks and measuring the time taken for each step of the process. By analyzing the data collected, the refinery management can identify areas where time can be saved, processes can be streamlined, and productivity can be improved.
For example, the time and motion study may reveal that certain equipment or machinery in the refinery is causing delays or requiring excessive manual labor. Based on these findings, the management can make informed decisions on investing in more efficient equipment or implementing process improvements to optimize productivity and reduce costs.
Q.2.4 Proteco Oil used the following criteria for market segmentation:
Demographic segmentation: The primary target audience for Pressed Purity is mostly females, aged 25-60+ years, with a contemporary cooking attitude. These consumers are health-conscious and seek natural and chemical-free options for themselves and their families. The secondary target audience includes men and women of all ages who consider themselves gourmet home chefs and are open to new tastes.
Psychographic segmentation: Pressed Purity targets consumers who prioritize natural and chemical-free products. By emphasizing the use of 100% natural ingredients and being genuinely Australian, Pressed Purity appeals to health-conscious consumers who value the quality and authenticity of the products they consume. They also cater to gourmet home chefs who are looking for unique and flavorful cooking options.
Geographic segmentation: Initially, Proteco Oil focused on the domestic market in Australia.
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A gas sample was produced in the laboratory. The gas was determined to be more dense than air (which is mostly composed of nitrogen). What is the identification of the gas? a)Hydrogen b)Neon c)Methane (CH_4) d)Carbon Dioxide
Answers
The correct option is (d) Carbon Dioxide.
Explanation:
The density of air is around 1.2 g/L, which means that any gas with a density above this value is more dense than air.
Carbon dioxide has a density of approximately 1.98 g/L, which is considerably more dense than air (composed of nitrogen and oxygen).
As a result, if a gas sample is determined to be more dense than air, it is likely to be carbon dioxide (CO2), which has a molecular weight of 44 g/mol.
Carbon dioxide is produced in the laboratory by many chemical reactions and is commonly employed in the food and beverage industries, such as carbonating soda and beer.
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Income statement information for Lucy Company is as follows: Sales $175,000 Cost of merchandise sold 105,000 Gross profit $ 70,000 Required: Prepare a vertical analysis of the income statement for Lucy Company. Lucy Company Vertical Analysis of the Income Statement Amount Percentage Sales $175,000 fill in the blank 1% Cost of merchandise sold 105,000 fill in the blank 2% Gross profit $70,000 fill in the blank 3%
Answers
To prepare a vertical analysis of Lucy Company's income statement, we need to express each line item as a percentage of the total sales.
Starting with the sales figure of $175,000, we can calculate the percentage by dividing it by itself and multiplying by 100. This gives us 100%, which we can fill in the blank.
Moving on to the cost of merchandise sold, we can calculate the percentage by dividing it by the sales figure and multiplying by 100. This gives us 60%, which we can fill in the blank.
Finally, we can calculate the gross profit percentage by dividing it by the sales figure and multiplying by 100. This gives us 40%, which we can fill in the blank.
Therefore, the completed vertical analysis of the income statement for Lucy Company would look like this:
Lucy Company Vertical Analysis of the Income Statement
Amount Percentage
Sales $175,000 100%
Cost of merchandise sold $105,000 60%
Gross profit $70,000 40%
It's important to note that a vertical analysis can be useful in understanding how different line items contribute to the overall performance of a company. In this case, we can see that Lucy Company's cost of merchandise sold represents a significant portion of their sales, leaving them with a gross profit margin of 40%.
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99% of matter that makes up living organisms consists of how many elements?
Answers
Answer:
h2o or air
Explanation:
TRUE or FALSE Oil will sink in water because it is less dense than water. What’s the right answer
Answers
Answer:
it's false
Explanation:
cause oil is lighter than water
False!
Oil is less denser than water and thus will float
Rain exist in which phase
Answers
Answer:
WATER!!!!!
Explanation:
hope it helps
A beaker contains 1.0 M NaOH(aq) solution. To produce a NaOH(aq) solution of molar concentration 0.20 M, we transfer 2.0 ml (cm^3) out of this beaker into a 25 ml cylinder and add distilled water until the total volume reading becomes
A) 12ml
B)10ml
C)8ml
D)5ml
E)2ml
Answers
Answer: B) 10 ml
Explanation:
According to the dilution law,
\(M_1V_1=M_2V_2\)
where,
\(M_1\) = molarity of stock \(NaOH\) solution = 1.0 M
\(V_1\) = volume of stock \(NaOH\) solution = 2.0 ml
\(M_1\) = molarity of dilute \(NaOH\) solution = 0.20 M
\(V_1\) = volume of diluted \(NaOH\) solution = ?
Putting in the values we get:
\(1.0\times 2.0=0.20\times V_2\)
\(V_2=10ml\)
Therefore, final volume reading is 10 ml
the radius of a single atom of a generic element x is 157 pm and a crystal of x has a unit cell that is face‑centered cubic. calculate the volume of the unit cell.
Answers
The volume of the element unit cell is 6.62 x 10⁻²³ cm³. Therefore, the volume of the unit cell is 6.62 x 10⁻²³ cm³.
The radius of a single atom of a generic element x is 157 pm and a crystal of x has a unit cell that is face-centered cubic.A face-centered cubic (FCC) is a crystal structure where the atoms are positioned at the corners and face centers of a cube. The FCC unit cell is made up of 4 atoms in total, with 8 corner atoms shared between 8 unit cells and 6 face-centered atoms shared between 2 unit cells. The volume of the unit cell of a face-centered cubic crystal is given by the formula:V = a³ / 4Where V is the volume of the unit cell and a is the edge length of the unit cell.
Therefore, the edge length of the FCC unit cell can be calculated as:2r = √8aWhere r is the atomic radius of the element x and a is the edge length of the unit cell.a = (2 × r) / √8a = (2 × 157 pm) / √8a = 221.56 pmNow, substituting the value of a in the formula for the volume of the unit cell,V = a³ / 4V = (221.56 pm)³ / 4V = 6.62 x 10⁻²³ cm³.
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differentiate between melting point and boiling point
Answers
Answer:
The main difference between boiling point and melting point is that the melting point is defined as the temperature at which solid and liquid phases are in equilibrium, whereas the boiling point is the temperature at which the vapour pressure of a liquid is equal to the external pressure
According to the graph,
what part(s) of the
reaction are present at
the beginning of the
reaction?
Concentration (M)
Reaction: 2A A₂
A. only the reactant, A
B. only the product, A:
C. Both the reactant (A) and product (A:)
D. You cannot determine from the graph.
Time (sec)
4
Answers
According to the graph, only the reactant A was present at the beginning of the reaction.
What does the graph show?The graph shows the concentration for the reactant A and the product that is A2. In this graph, the concentration is displayed on the vertical axis, while the horizontal axis shows the time.
In general terms, it can be observed that at the beginning only the reactant A is present, but as the reaction occurs the concentration of this reactant decreases, while the concentration of the product A2 increases.
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a cup of hot tea has blank energy
Answers
Answer: thermal energy
Explanation: Thermal energy is what we call energy that comes from heat.
Describe at least 3 phases of thr water cycle and make sure to explain The state of matter of water at each of the phases
Answers
is RbCl soluble or insoluble in water
Answers
Answer:
Rubidium Chloride is an excellent water soluble crystalline Rubidium source for uses compatible with chlorides.
Compound Formula: ClRb
Melting Point: 715 °C
Boiling Point: 1,390 °C
Explanation:
Chemical Energy
Chemical energy is the energy that substances possess because of the way their _________ are ___________
together. The ___________ of chemical energy is different for different substances and determines whether
energy is absorbed or released during a chemical reaction:
❖ If reactants have more chemical energy than products, energy is absorbed released.
❖ If reactants have less chemical energy than products, energy is absorbed released.
Activation Energy
All chemical reactions need a certain amount of energy to begin. This energy is called ____________
___________.
• The activation energy is often _____________ energy, but it can also be any other form of energy.
• The amount of activation energy needed is always the same for a particular reaction, unless a catalyst
is used.
o A catalyst is a special substance that ___________ activation energy.
Why is activation energy needed?
Reaction Energy Diagrams
A reaction energy diagram shows the process of a chemical reaction in terms of energy. The images show
these energy values:
➢ _______________________________________________________
➢ _______________________________________________________
➢ __________________________
fill in the blanks
Answers
Chemical energy is the energy that atoms have due of how they are bound together. varied substances have varied amounts of chemical energy, which impacts whether energy is absorbed or released during a chemical reaction.
The energy necessary for a chemical reaction to begin is known as activation energy. It is often thermal energy, although it can be any type of energy. Unless a catalyst is utilised, the quantity of activation energy required for a certain reaction is always the same.
A catalyst is a unique material that minimises the amount of energy required for activation. Reaction energy diagrams depict the energy flow of a chemical reaction. The illustrations depict the following energy values: • The energy of the reactants • The energy of the reactants • The activation energy • The energy of the products.
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please answer i will give you braineist!!!!!!!!!!!!
Answers
Answer: B and D
Explanation:
sorry if im wrong
What type of reaction is represented by the following? A + B ⟶ AB
Answers
Answer:
Synthesis Reaction
Explanation:
It is a synthesis Reaction because it is taking little reactants and forming a big product!
What property of an element does the group number identify in a numbering
system that uses "A" and "B"?
A. The number of core electrons
B. The number of inner electrons
C. The number of valence electrons
D. The electrons closest to the nucleus
Answers
Answer:
C) the number of valence electrons
Explanation:
the group shows the valence electrons in the atom
eg. Na has one valence electron hence it belongs to group(I)
if a second-period diatomic molecule has 16 electrons in its valence shell (total of 2s and 2p electrons), what is the predicted bond order of the molecule?
Answers
If a second-period diatomic molecule has 16 electrons in its valence shell (total of 2s and 2p electrons), the predicted bond order of the molecule would be 2
Number of bonding electrons= 10
Number of antibonding electrons= 6
Bond order = (10−6)/2
∴ Bond order = 2
What is bond order?
In molecular orbital theory, the bond order is defined as half the difference between the number of bonding electrons and the number of antibonding electrons according to the equation below. This often, but not always, gives similar results for bonds near their equilibrium length, but does not work for stretched bonds. Bond order is also an index of bond strength and is also widely used in valence bond theory.The bond orders of one half can be stable, as shown by the stability of H+To know more about bond order, click the link given below:
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How many grams of chlorine are needed to
-
produce 65 g of NaCl in 2Na+ Cl₂ → 2NaCl
Answers
To determine the amount of chlorine required to produce 65 grams of sodium chloride (NaCl) in the reaction 2Na + Cl₂ → 2NaCl, we need to consider the stoichiometry of the reaction. Therefore, approximately 39.53 grams of chlorine are required to produce 65 grams of NaCl.
The balanced equation tells us that for every 1 mole of Cl₂, we obtain 2 moles of NaCl.First, we calculate the molar mass of NaCl:
Na: 22.99 g/mol
Cl: 35.45 g/mol
Molar mass of NaCl: 22.99 + 35.45 = 58.44 g/mol
Now, we can calculate the number of moles of NaCl:
65 g of NaCl / 58.44 g/mol = 1.114 mol of NaCl
Since the reaction ratio is 1 mole of Cl₂ to 2 moles of NaCl, we need half the amount in moles:
1.114 mol of NaCl / 2 = 0.557 mol of Cl₂
Finally, we calculate the mass of chlorine needed using its molar mass:
0.557 mol of Cl₂ × 70.90 g/mol = 39.53 g of chlorine
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