Answers
Answer:
5ml
Explanation:not sure why
Related Questions
22.55 mL of an H2SO4 solution
were titrated with 14.85 mL of a
0.146 M NaOH solution to reach the
equivalence point. What is the
molarity of the H2SO4 solution?
Answers
The concentration of H₂SO₄ solution is equal to 0.0480 M.
What is a neutralization reaction?A neutralization reaction is described as a chemical reaction where acid and base react to produce respective salt and water. When a strong acid reacts with a strong base then the salt can be neutral.
When H₂SO₄ (a strong acid) reacts with NaOH, the resulting salt is Na₂SO₃ and water.
H₂SO₄ + 2 NaOH → Na₂SO₄ + 2H₂O
Given, the concentration of NaOH = 0.146 M
The volume of the NaOH = 14.85 ml = 0.01485 L
The number of moles of NaOH, n = M × V = 0.146 × 0.01485 = 0.00216 M
The volume of the H₂SO₄ = 22.55 ml = 0.02255 L
The number of moles of H₂SO₄, n = 0.00216/2 = 0.00108 mol
The concentration of H₂SO₄ =0.00108/0.02255 = 0.0480 M
Therefore, the molarity of H₂SO₄ is 0.0480 M.
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10. What does a full moon look like from earth? *
Your answer
Answers
Answer:
like a circle
Answer:
it would look white and its a circle
Explanation:
pLEASE MARK BRAINLIEST
I need to find the chemical equation
Answers
Answer:
2NaCN + CaCO3 --> Na2CO3 + Ca(CN)2
Explanation:
Knowing the names gets us: NaCN + CaCO3 --> Na2CO3 + Ca(CN)2
Balance: there are two sodiums and cyanides on the product side so add a 2 to the reactant side.
N2 + 3H22NH3
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
Answers
Explanation:
n2 ×2b is the only solution
Determine how many pennies are in the stack on the left in the photograph at the beginning of this module. Create a conversion factor to calculate how many pennies are in the photo, knowing that there are 12 stacks of pennies.
Answers
Answer:
I had the answer
Explanation:
Moles to particles Now suppose you want to determine how many particles of sucrose are ... Driving Question Board Have students revisit the DQB to remind themselves of the Unit and Module questions.
Why is it important for scientists to monitor meteors in the sky?
Answers
Answer:
Because You never know when a meteor will hit you.
Convert 355 km/s into m/ns.
Answers
Answer:
3.55e-7
Explanation:
ammoniagas and oxygengas react to form nitrogengas and watervapor. suppose you have of and of in a reactor. calculate the largest amount of that could be produced. round your answer to the nearest .
Answers
In this reaction, ammonia gas (NH3) and oxygen gas (O2) react to form nitrogen gas (N2) and water vapor (H2O).
The balanced chemical equation for this reaction is:
2 NH3 + 3 O2 → 2 N2 + 6 H2O
To calculate the largest amount of nitrogen gas that could be produced, we need to consider the limiting reactant. The limiting reactant is the reactant that runs out first and determines the maximum amount of product that can be formed.
To find the limiting reactant, we need to compare the mole ratios of the reactants to the mole ratios of the products in the balanced chemical equation.
In this case, the mole ratio of NH3 to N2 is 2:2, and the mole ratio of O2 to N2 is 3:2. This means that the reaction consumes 2 moles of NH3 for every 2 moles of N2 produced, and 3 moles of O2 for every 2 moles of N2 produced.
Since we have of NH3 and of O2, we can calculate the number of moles of each reactant as follows:
Number of moles of NH3 = = 0.5 moles
Number of moles of O2 = = 0.75 moles
Since the number of moles of O2 is less than the number of moles required to produce the same amount of N2 (which is 3 moles), O2 is the limiting reactant. This means that the maximum amount of N2 that can be produced is equal to the number of moles of O2 that are present.
Therefore, the largest amount of N2 that could be produced in this reaction is 0.75 moles
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This reaction creates nitrogen gas (N2) and water vapor from the interaction of ammonia gas (NH3) and oxygen gas (O2) (H2O). N2 can be created in this reaction up to 0.75 moles at its maximum quantity.
2 NH3 + 3 O2 2 N2 + 6 H2O is the reaction's balanced chemical equation.
Why would one use nitrogen gas?When doing a chemical analysis, nitrogen is frequently utilized to prepare samples. Liquid sample volume is decreased and concentrated using this method. For the chemical industry, nitrogen is also crucial. In addition to nylon, dyes, nitric acid, fertilizers, and explosives, it is used to produce.
The gas nitrogen is it explosive?One liter of liquid nitrogen becomes 24.6 cubic feet of nitrogen gas when it is vaporized, expanding by a factor of 700.
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what is the photoelctric effect?
Answers
Explanation:
It is the emission of electron from a metal under the effect of light is known as photo electric effect
I hope this imformation help full for you
Stainless steel is an alloy of iron, chromium, nickel, and manganese metals. If a 5.00g sample is 10.5% nickel, what is the mass of nickel in the sample?
Answers
The sample has a mass of.525 g of nickel. When two or more metals or metals and non-metals are combined, a substance known as an alloy is created.
How much iron, chrome, and nickel are there in a stainless steel alloy?With a 16–26% chromium concentration, a 6-22% nickel (Ni) content, and a low carbon content, stainless steel is an alloy of chromium, nickel, and iron that is nonmagnetic (if annealed- working it at low temperatures, then heated and cooled).When two or more metals or metals and non-metals are combined, a substance known as an alloy is created. Iron, nickel, chromium, and carbon are combined to create the alloy stainless steel.They are nonmagnetic, nonhardenable by heat treatment, and include 16 to 26 percent chromium and up to 35 percent nickel. The 18/8, or 304, grade, which has a chromium content of 18% and a nickel content of 8%, is the most used variety.To learn more about mass refer to:
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which describes how light wave interact with wood?
A. absorption and reflection
B. diffraction and transmission
C. reflection and refraction
D. transmission and refraction
Answers
BAnswer:
Explanation:
Answer:
A.) Asorption on Edge
Explanation:
What is the relative humidity of the air when the dry-bulb temperature is 4°C and the dewpoint is -4°C?
1.
42%
2.
46%
3
51%
4
56%
Answers
Answer:56%
Explanation:
In the dewpoint chart when you line it up it ends up at 56%
The relative humidity of the air when the dry temperature is about 4 degrees and the dew point is about -4 degrees C is 56%. Hence option 4 is correct.
What is dewpoint?The dew point is the temperature at which the air needs to be colled at a ta constant pressure in order to have an RH of 100%. The dew point is minus four degrees and the RH of the air is 4 degrees.
For the forces to initiate the air must get cooler and a constant addition of water pressure should be there. Thus substrating the temperature of the wet bulb, putting the thermometer on the dry bulb, and making use of the RH chart tells us that RH is 56%
Find out more information about the relative humidity.
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_BF3 + ___Li2SO3 -->
_B2(SO3)3 +LiF
How many grams of B2(SO3)3 can be made from 2.16 moles of Li2SO3?
Round to two decimal places
Answers
Witch hazel solution, an astringent for skin,
contains 14% ethyl alcohol, C₂H5OH, by volume.
How many mL of ethyl alcohol are contained in a
16 fluid ounce bottle of witch hazel?
Answers
16 fluid ounce bottle of witch hazel will have 66.24ml of ethyl alcohol.
What is volume percentage?volume percent of a solution is the ratio of the volume of a solute present in a solution to the volume of the solution as a whole.
Volume Percent = V solute(mL)/V solution(mL) × 100
Volume Percent = V solute(mL)/V solute(mL)+V solvent(mL) × 100
14% of 16 fluid ounce
=(14/100)×16
=0.14×16
=2.24 fluid ounce
=66.24ml
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when burning magnesium is lowered in a gas jar full of carbon 4 oxide it continued to burn explain
Answers
When burning magnesium is lowered in a gas jar full of carbon dioxide, the burning process continues because the carbon dioxide acts as an oxidizing agent.
What is a combustion reaction?A combustion reaction is a type of chemical reaction that occurs when a fuel, such as a hydrocarbon, reacts with an oxidizing agent, such as oxygen, to produce heat and light in the form of a flame. The basic equation for a combustion reaction is:
Fuel + Oxidant → Heat + Light + Products
In the case of burning magnesium, the fuel is magnesium and the oxidant is carbon dioxide. The products of the reaction are magnesium oxide and carbon dioxide. Combustion reactions are exothermic, meaning they release energy in the form of heat.
This means that the carbon dioxide provides the oxygen necessary for the combustion reaction to continue, allowing the magnesium to continue burning. Additionally, the carbon dioxide also helps to extinguish the flame by removing the heat and the oxygen from the combustion zone.
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What is the atomic number of an atom?
Answers
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element.
the table below gives the atomic number of elements w x and y and z.The the letters do not represent the actual symbols of the elements .
W. X Y. Z
9. 10. 11. 12
which one of the element is less reactive explain .
Answers
Element w is less reactive than elements x, y, and z. The element with the lower atomic number is typically less reactive.
Element w has an atomic number of 9, element x has an atomic number of 10, element y has an atomic number of 11, and element z has an atomic number of 12. Based on this information, we can conclude that element w is less reactive than elements x, y, and z.
This is because the reactivity of an element is largely determined by the number of valence electrons it has. Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical reactions. Elements with fewer valence electrons are less reactive because they are more stable. Element w has only one valence electron, while elements x, y, and z have two, three, and four valence electrons, respectively.
In general, elements with a full outermost shell of electrons, such as the noble gases, are the least reactive because they are highly stable. Elements that are close to having a full outermost shell, such as element w, are also relatively stable and less reactive. On the other hand, elements with only a few valence electrons, such as the alkali metals, are highly reactive because they are trying to gain or lose electrons in order to achieve a full outermost shell.
Overall, the reactivity of an element is determined by its electronic structure, with elements having fewer valence electrons generally being less reactive than those with more. In the case of the elements w, x, y, and z, we can see that element w has the fewest valence electrons and is therefore the least reactive.
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The q of a system that releases 12.4J of heat to surroundings is _____J.
a.) 12.4
b.) -12.4
c.) 0
d.) not enough info
If you explain why I'll give brainly!!
Answers
Answer: B.) -12.4
Explanation: This is because the sign of heat transfer is determined by the system's perspective. In this case, the system is releasing heat to the surroundings, which means that heat is flowing out of the system, making the heat transfer negative. The magnitude of the heat transfer is 12.4 J.
A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq), until no further precipitation occurs. The precipitate is collected by filtration, dried, and weighed. A total of 16.83g PbCl2(s) is obtained from 200.0mL of the original solution. Calculate the molarity of the Pb(NO3)2(aq) solution.
Answers
0.25 Molarity of lead nitrate aqueous solution is there when a solution of nacl is added slowly to a solution of lead nitrate.
What is molarity and how it is calculated out to be so?Molarity is the number of moles of substance present in one litre of solution and is measured in g/litres.Here in this question is given 16.83 g of lead nitrate is obtained from 200 ml of original solution.To calculate the molarity first we will have to calculate the number of moles of lead nitrate for which the formula is given mass/ molar mass.The mass that is given is 16.83 g and the molar mass is 331.2 g dividing we will get 5.02.Then dividing the number of moles by 0.2 L of solution we will get the answer as 0.25 g/litre molarity as the answer.To know more about molarity visit:
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The combustion of octane, C8H18, proceeds according to the reaction shown.
2C8H18(l)+25O2(g)⟶16CO2(g)+18H2O(l)
If 354 mol of octane combusts, what volume of carbon dioxide is produced at 15.0 ∘C
and 0.995 atm?
Answers
The concept ideal gas equation is used here to determine the volume of the carbondioxide. Combustion reactions are generally highly exothermic reactions. The volume of CO₂ is
A combustion is a chemical reaction in which a fuel undergoes oxidation as a result of the reaction with an oxidizing agent which causes the release of energy in the form of heat.
15.0 °C = 288 K
The ideal gas equation is:
PV = nRT
V = nRT / P
V = 354 × 0.0821 × 288 / 0.995 = 8412.3 L
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In the reaction 2 Na(s) + Br2 ---> 2 NaBr(s). the (s) stands for
Answers
Answer:
The s stands for the phase of that element or compound. The phase solid is represented by (s). In this problem it is saying solid sodium (Na) is reacting with Bromine (Br) gas to form sodium bromide.
Explanation:
What is the molar mass
MgCrO4
Answers
The molar mass of MgCrO4 is approximately 140.30 g/mol.
To determine the molar mass of MgCrO4 (magnesium chromate), we need to calculate the sum of the atomic masses of each individual element in the compound.
The chemical formula MgCrO4 indicates that the compound consists of one magnesium atom (Mg), one chromium atom (Cr), and four oxygen atoms (O).
The atomic masses of the elements can be found on the periodic table:
Magnesium (Mg) has an atomic mass of approximately 24.31 g/mol.
Chromium (Cr) has an atomic mass of around 51.99 g/mol.
Oxygen (O) has an atomic mass of about 16.00 g/mol.
Now, we can calculate the molar mass of MgCrO4 by summing up the atomic masses of each element, considering the respective subscripts:
Molar mass = (Atomic mass of Mg) + (Atomic mass of Cr) + 4 × (Atomic mass of O)
Molar mass = (24.31 g/mol) + (51.99 g/mol) + 4 × (16.00 g/mol)
Molar mass = 24.31 g/mol + 51.99 g/mol + 64.00 g/mol
Molar mass ≈ 140.30 g/mol
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TiCl4 + O2
What is the predicted product
Answers
Answer: Titanium dioxide
Which of the following best describes a neutralization reaction?
A. Acid + base =
\( {h}^{2} 0 + {h}^{3} {0}^{ + } \)
B. Acid + base H+ + OH-
C. Acid + base salt + water
D. Acid + base metal + nonmetal
Answers
Answer: c
Explanation: just took the test and got it right
ZSM-5, a catalyst material, has a surface area of 581 m²/g. What is the surface
area of this material in cm²/mg?
Answers
ZSM-5 is a catalyst material, which has a surface area of 581 m²/g. This is equivalent to a surface area of 5810 cm²/mg.
What is a catalyst?A catalyst is a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. Catalysts have large surface areas to increase the reaction rate.
Biological catalysts are known as enzymes.
ZSM-5 is a catalyst material, which has a surface area of 581 m²/g. We want to convert this value to cm²/mg.
Step 1: Convert 581 m²/g to cm²/g.We will use the conversion factor 1 m = 100 cm.
581 m²/g × (100 cm/1 m)² = 5.81 × 10⁶ cm²/g
Step 2: Convert 5.81 × 10⁶ cm²/g to cm²/mg.We will use the conversion factor 1 g = 1000 mg.
5.81 × 10⁶ cm²/g × (1 g/1000 mg) = 5810 cm²/mg
ZSM-5 is a catalyst material, which has a surface area of 581 m²/g. This is equivalent to a surface area of 5810 cm²/mg.
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In a science demonstration, a teacher mixed zinc (Zn) with hydrogen chloride (HCl) in a flask and quickly attached a balloon over the mouth of the flask. Bubbles formed in the solution and the balloon inflated.
What most likely occurred during this demonstration?
a.The Zn and HCl both retained their identity.
b.Either Zn or HCl, but not both, retained its identity.
c.Evaporation of one of the substances occurred.
d.One or more new substances formed.
Answers
Answer:
a. The Zn and HCl both retained their identity.
Which amphibian organ has a high blood supply and many folds to increase surface area?
a. heart
b. stomach
c. lungs
d. brain
Answers
Answer:
lungs
Explanation:
.the difference between an extended structure and a polymer
Answers
Answer:
Explanation
Explanation:
An extended structure is a type of chemical structure that is composed of a large number of repeating units that are bonded together in a linear, branched, or crosslinked arrangement. Examples of extended structures include polymers, proteins, and nucleic acids.
A polymer is a specific type of extended structure that is composed of a large number of repeating units called monomers. Polymers can be either natural or synthetic, and they are often characterized by their high molecular weight and their ability to be molded, shaped, and formed into various structures. Polymers are used in a wide range of applications, including construction materials, packaging, textiles, and medical devices.
The main difference between an extended structure and a polymer is that an extended structure is a general term that refers to any chemical structure that is composed of a large number of repeating units, whereas a polymer is a specific type of extended structure that is composed of monomers.
Difference between an extended structure and a polymer is that an extended structure is composed of repeating units having linear ,branched arrangement while polymer is composed of monomers made during polymerization.
What is polymerization?
The reactions in which large number of monomer molecules react to form polymer are called polymerization reactions.The large molecules which are produced from polymerization may have linear or branched structure.
They can also form a complex three dimensional structure . There are different polymerization reactions like step-growth polymerization, chain -growth polymerization and condensation polymerization.
Polymers containing same kind of monomer are homopolymer and which contain different monomers are heteropolymers. Mechanisms which describe formation of polymers are of different types such as free radical mechanism and chain growth mechanisms.
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In 1995 Cathy marsal of France cycled 47.112 km in 1.000 hour. Calculate the magnitude of the centripetal acceleration of marsal with respect to earths center. Neglect earths rotation and use 6.37 x 10^3 km as earths radius
Answers
The centripetal acceleration at the equator is around 3.39 cm/sec2 (I'm taking this estimate from the CRC) in 1995 when Cathy Marshall of Germany cycled 47.112 km 1.000 hours.
How do you tackle issues involving centripetal acceleration?You can use the following equation to get centripetal acceleration: A C Equals V 2 R where r is the circle's radius and v is the velocity, which is expressed in meter per second (m/s). Centripetal acceleration is measured in meters per second squared, or m/s2 m/s2.
How do you calculate the average circular motion acceleration?An=v2r=2r is used to calculate the acceleration. Equations for constant acceleration can be applied with the acceleration (assuming constant tangential velocity) to determine.
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f dry solute is heated, which of the following can occur? group of answer choices it will turn into an oil it will expand it may become damaged it will evaporate
Answers
Higher temperatures result in an increase in kinetic energy, which allows the solvent molecules to more efficiently damage the intermolecularly attracted solute molecules.
Solubility of the solute in the solution is increased by heating saturated solution. Because the particles gain kinetic energy as the temperature rises, they move faster, increasing the likelihood of collisions and diffusion. By giving energy to break bonds in the material, more heat is added, which speeds up the dissolving reaction. This is the most typical instance in which a rise in temperature results in a rise in the solubility of solids.
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