Answers
To solve this problem, we can use Charles' Law, which states that the volume of a gas is directly proportional to its temperature, as long as a constant pressure is maintained.
The mathematical formula for Charles' Law is:
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{\frac{V_1}{T_1}=\frac{V_2}{T_2} } \end{gathered}$} }\)
Where:
V₁ is the initial volumeT₁ is the initial temperatureV₂ is the final volumeT₂ is the final temperatureIn this case, we have the following values:
V₁ = 2.3 LT₁ = 25 °C + 273 = 298 KV₂ = 4.6 LT₂ = ?We can rearrange the Charles Law formula to solve for T₂:
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{T_2=\dfrac{V_2T_1}{V_1} } \end{gathered}$} }\)
Where:
V₁ is the initial volumeT₁ is the initial temperatureV₂ is the final volumeT₂ is the final temperatureSubstituting the known values:
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{T_2=\frac{(4.6 \not{L}\times298 \ K) }{2.3\not{L}} } \end{gathered}$} }\)
\(\boxed{\bf{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{T_2=596 \ Kelvin=323 \ ^{\circ}C } \end{gathered}$} }}}\)
The temperature that the balloon must reach to expand to a volume of 4.6 L is 596 Kelvin.NOTE: The temperature in degrees Celsius (°C), in these types of exercises are always converted into Kelvin (K).
Related Questions
Which fundamental force acts over the shortest distance?
O A. Strong nuclear force
B. Electrostatic force
O C. Weak nuclear force
D. Gravitational force
Answers
It is much weaker than the electric and the strong forces (but still much stronger than gravity at short distances), acts over an extremely tiny distance, and is the cause for beta decay in atoms. So the correct answer is C
Answer:
C. Weak nuclear force
Explanation:
The weak force is responsible for radioactive decay and neutrino interactions. It has a very short range and. As its name indicates, it is very weak. The weak force causes Beta-decay ie. the conversion of a neutron into a proton, an electron and an antineutrino.
hello, can you help me identify the name of these 4 molecules as well as the structural formula and the skeletal formula? thank you
Answers
Answer:1. metyletevinyl
4. (Z)-3-hydroxypropenal
Explanation:
Name the type of chemical reaction that occurs when magnesium chloride solution reacts with sodium carbonate solution
Answers
Answer:
precipitation reaction
The replacement reaction occurs when magnesium chloride solution reacts with sodium carbonate solution and form \(MgCO_{3}\) white precipitate.
What is replacement reaction?The reaction in which cation of one molecule is replace or substitute by cation of another molecule or anion of one molecule is replace or substitute by another molecule.Example : \(MgCl + NaCO_{3}\) → \(MgCO_{3} + NaCl\)What is precipitate?The insoluble substance accumulate at the bottom of the surface is called precipitate.Example : \(MgCl + NaCO_{3}\) → \(MgCO_{3} + NaCl\)In the above reaction \(MgCO_{3}\) white precipitate.Learn about replacement reaction.
https://brainly.com/question/17970302
#SPJ2
Why do nonmetal atoms share electrons in covalent bonds
Answers
Answer:
pairs of electrons
Explanation:
covalent bondin occurs when pairs of electrons are shared by atoms.... nonmetal will readily form covalent bonds with other nonmetal in order to obtain stability.
A car travelling
at 35 m/s has a
kinetic energy
of 500,000 J.
what is the
mass?
I NEED HELP FIGURING THIS OUT
Answers
Answer:
816.33 kg
Explanation:
To solve this problem we'll need to keep in mind the formula for the kinetic energy of an object:
E = 0.5 * m * v²Where E is the kinetic energy, m is the object's mass and v its velocity.
We input the data given by the problem:
500000 J = 0.5 * m * (35 m/s)²And solve for m:
m = 816.33 kg1. Before starting, make a prediction: If substances B and C are both in the gas phase and are at the same energy level, which of the two substances will need to have more energy transferred out in order to change to the liquid phase? Substance B or substance C? Explain your answer.
Answers
Answer:
Substance C
Explanation:
Substance C would be the answer because Substance C has a lower attraction level. Because of this, it takes more energy to take out of in order to become a liquid.
The pH of an aqueous solution is defined as the negative of the logarithm of the concentration of H ion in the solution:
pH-log[H Compute the pH of the solution if the concentration of H ion is 0.02 moles per liter Select one: A. 1.05 B. 2.7 C. 0.95 D. 1.7 E. 0.7
Answers
The pH of an aqueous solution is defined as the negative of the logarithm of the concentration of H ion in the solution is 0.7 .
What is meant by logarithm ?
The logarithm is exponentiation's opposite function in mathematics.This indicates that the exponent to which b must be raised in order to obtain a number x is the logarithm of x to the base b.John Napier developed logarithms in 1614 as a way to make calculations easier.They were quickly adopted by surveyors, engineers, scientists, and navigators to make high-accuracy calculations simpler.Logarithm tables allow for the simple addition and table lookup of arduous multi-digit multiplication processes.The exponential function and the letter e were both introduced by Leonhard Euler in the 18th century, who also gave us the idea of logarithms as we know them today.To learn more about logarithm refer to
https://brainly.com/question/25710806
#SPJ4
What is the purpose of the lab for science
Answers
Answer:
The lab is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed.
Explanation:
Why is ocean water near the equator warmer than ocean water at the poles?
O A. The sun's rays strike the water more directly near the equator.
O B. Deep sea vents pump steam into the conveyor belt near the
equator.
O C. The water is denser and saltier near the equator, so it holds more
heat.
D. Due to Earth's rotation, gyres near the equator flow clockwise.
SUBM
Answers
HCIO4 is identified as what acid
Answers
A small amount of chemical splashes in Frank’s eye. What should Frank do immediately?
Answers
Answer:
A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.
Explanation:
Brainlist
Ammonium phosphate is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid with ammonia . What mass of ammonium p
Answers
Answer:
7.5 g
Explanation:
There is some info missing. I think this is the original question.
Ammonium phosphate ((NH₄)₃PO₄) is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid (H₃PO₄) with ammonia (NH₃). What mass of ammonium phosphate is produced by the reaction of 4.9 g of phosphoric acid? Be sure your answer has the correct number of significant digits.
Step 1: Write the balanced equation
H₃PO₄ + 3 NH₃ ⇒ (NH₄)₃PO₄
Step 2: Calculate the moles corresponding to 4.9 g of phosphoric acid
The molar mass of phosphoric acid is 98.00 g/mol.
\(4.9 g \times \frac{1mol}{98.00g} = 0.050mol\)
Step 3: Calculate the moles of ammonium phosphate produced from 0.050 moles of phosphoric acid
The molar ratio of H₃PO₄ to (NH₄)₃PO₄ is 1:1. The moles of (NH₄)₃PO₄ produced are 1/1 × 0.050 mol = 0.050 mol.
Step 4: Calculate the mass corresponding to 0.050 moles of ammonium phosphate
The molar mass of ammonium phosphate is 149.09 g/mol.
\(0.050mol \times \frac{149.09 g}{mol} = 7.5 g\)
Analyze two different crime scenes, such as a homicide and a burglary, and determine two forensic personnel that are likely to be involved in solving each crime. Describe at least two roles and responsibilities for the forensic personnel in each case.
Answers
Homicide is referred to as manslaughter and involves a human killing another while burglary is referred to as the breaking into or gaining access to a building without permission.
Who are the forensic personnel?They include the crime scene photographers and sample collector who are involved in the taking of photographs and collecting of body parts such as hair which can help reveal the identity of the suspect through the use of DNA extraction techniques.
The forensic technicians are also present at the crime scene and they help to make sketches of the crime scene and also assist in the gathering of the evidences which are left behind.
Read moire about Forensic here https://brainly.com/question/3049628
#SPJ1
The measurements below were made on four different balances:
i. 7.5 g
ii. 7.33 g
iii. 7.5201g
iv. 7.490
A student takes a reading from a balance where the display fluctuates between 7.51 g and 7.55 g. Which of the four balances above was used?
a. iv
b. iii
c. i
d. ii
Answers
Answer:
d. ii.
Explanation:
Hello!
In this case, according to the displayed decimal placed by each balance, we can notice that:
i. Displays 1 decimal place.
ii. Displays 2 decimal places.
iii. Displays 4 decimal places.
iv. Displays 3 decimal places.
Thus, since the measured-out masses have two decimal places each, we infer that the used balance was d. ii as it displays two decimal places.
Best regards!
How do you figure out the # of
neutrons?
Answers
Answer:
Subtracting the number of protons from the atomic mass.
Answer:
Subtract Protons
Explanation:
Since the vast majority of atom's mass is found it's protons and neutrons, Subtracting the Number of Protons ( i.e. the atomic number ) from the atomic mass will give you the calculated number of neutrons in a atom,
Alkenes undergo an addition reaction with borane in tetrahydrofuran (THF).
For the reaction below:
((image))
Draw the structure of the major organic product.
Use the wedge/hash bond tools to indicate stereochemistry.
Use wedge and hash bonds ONLY when needed to show reaction stereochemistry.
If the reaction produces a racemic mixture, just draw one stereoisomer.
Answers
Alkyne chemistry refers to the branch of chemistry that deals with triple bonds between carbon atoms. Due to the presence of pi-electrons that are not tightly bound, alkynes undergo addition reactions.
Alkynes have a triple bond, which makes it possible to add halogens, water, and other substances to them through an addition reaction. A series of steps are used to create addition goods. The development of addition products is caused by the stability of vinylic cations. Asymmetric alkynes must adhere to Markovnikov's rule in order to conduct addition reaction. Below are a few addition reactions of alkynes that are explained: Alkenes are created when alkynes react with dihydrogen in the presence of catalysts like Pt/Pd/Ni. Alkanes are created when the produced alkenes further react with dihydrogen.
Learn more about alkynes here-
https://brainly.com/question/23508203
#SPJ4
What has a higher boiling point C2H4O or CH3OH
Answers
Answer:
Explanation:
i wish i can help
Write formulas or names as appropriate for each of the following hydrates. 2. Copper(I) sulfate pentahydrate 7. Na2CrO4•4H2O 3. Potassium phosphate decahydrate 8. CuF2•2H2O 4. Calcium chloride hexahydrate 9. Sr(NO3)2•6H2O 5. Iron(III) nitrate nonahydrate 10. ZnSO4•7H2O
Answers
Answer:
Explanation:
Here, we want to get the names or formulas of the given hydrates
2) Copper (I) Sulfate pentahydrate
Penta means 5 and pentahydrate means there are 5 molecules of water of crystallization
We have the Copper (I) Sulfate as:
\(Cu_2SO_4\)With the pentahydrate, we have it as:
\(Cu_2SO_4.5H_2O\)7) As we can see here, the root compound is Sodium Chromate
The water of crstallization is 4 molecules
The name of the compound is thus:
Sodium Chromate tetrahydrate
Why is it important for some skateboarding ramps to be tall? Use the terms "potential energy" and "kinetic energy" in your answer. plsssssss help meeee Plzzz in kids words
Answers
Explanation:
Yw ❤
Shorter people have a lower center of gravity. Taller people have a higher center of gravity. A lot of skateboarding tricks depend on the center of gravity.
What is kinetic energy?
Kinetic energy is a form of energy it possess when any object or person is in motion . It can be defined as the work needed to be done to produce a motion in a object from rest position.
If we want to acceleration in an object then we must apply a force on a object to give motion so we can say that we required to do work for acceleration and then we can say that required is equal to kinetic energy.
Mathematically
Kinetic energy =1/2mv^2
Where
m = mass of object.
v = velocity of object
Kinetic energy is vector quantity it means that it have both i.e magnitude and vector.
S.I unit of Kinetic energy is Joule.
Therefore, Shorter people have a lower center of gravity. Taller people have a higher center of gravity. A lot of skateboarding tricks depend on the center of gravity.
Learn more about kinetic energy here:
https://brainly.com/question/12669551
#SPJ2
What is the molality of a solution prepared by dissolving 56.1 grams of NaCl in 60.0 mL of water?
Answers
The molality of a solution prepared by dissolving 56.1 grams of NaCl in 60.0 mL of water is 16mol/kg.
How to calculate molality?Molality is the concentration of a substance in solution, expressed as the number of moles of solute per kilogram of solvent.
This means that the molality can be calculated by dividing the number of moles of solute by mass in kilograms of solvent.
moles of NaCl = 56.1g ÷ 58.5g/mol = 0.96 moles
The mass of the solvent (water) can be calculated as follows:
Density = mass ÷ volume
1g/mL = mass ÷ 60mL
mass = 60g, which is equivalent to 0.06kg
Molality = 0.96mol ÷ 0.06kg = 16mol/kg
Learn more about molality at: https://brainly.com/question/26921570
#SPJ1
For the following reaction at equilibrium (400 °C), describe the effect on the equilibrium amount of Cl2(g) if additional O2(g) is added to the mixture at constant volume?
Answers
The addition of \(O_2(g)\) will shift the equilibrium towards the right side of the reaction and will consume \(Cl_2(g)\).
For the given reaction at equilibrium (400 °C), the effect on the equilibrium amount of \(Cl_2(g)\) if additional \(O_2(g)\)) is added to the mixture at constant volume can be determined by the Le Chatelier's principle.Le Chatelier's principle states that if a system in equilibrium is subjected to a stress, the system adjusts itself in such a way that it counteracts the stress and a new equilibrium is established.The given reaction is:\(Cl_2(g)\) + \(O_2(g)\) ⇌ 2ClO(g)When additional \(O_2\) is added to the mixture at constant volume, the concentration of O2(g) increases. According to Le Chatelier's principle, the system will adjust itself to counteract this increase in concentration by decreasing the concentration of \(O_2(g)\). This can be achieved by consuming \(O_2(g)\) to produce more ClO(g).The reaction shifts to the right to counteract the increase in concentration of \(O_2(g)\). As a result, the equilibrium amount of \(Cl_2(g)\) decreases, and the equilibrium amount of ClO(g) increases. Therefore, the addition of \(O_2(g)\) will shift the equilibrium towards the right side of the reaction and will consume \(Cl_2(g)\).Hence, the effect of adding \(O_2\) to the mixture will decrease the amount of \(Cl_2(g)\) at equilibrium while increasing the amount of ClO(g).Summary: If additional \(O_2\) is added to the mixture at constant volume, the concentration of \(O_2(g)\) increases. According to Le Chatelier's principle, the system will adjust itself to counteract this increase in concentration by consuming \(O_2(g)\) to produce more ClO(g). As a result, the equilibrium amount of \(Cl_2(g)\) decreases, and the equilibrium amount of ClO(g) increases. Therefore, the addition of \(O_2(g)\) will shift the equilibrium towards the right side of the reaction and will consume \(Cl_2(g)\).For more questions on equilibrium
https://brainly.com/question/29398344
#SPJ8
How many moles is 34.4 g of Oxygen gas (O2)?
Answers
Answer:
n = 1.075 moles
Explanation:
Given that,
Mass of oxygen = 34.4 gram
The molar mass of oxygen gas = 32 g/mol
We need to find the number of moles of oxygen. We know that,
No. of moles = given mass/molar mass
So,
\(n=\dfrac{34.4\ g}{32\ g/mol}\\\\=1.075\ mol\)
So, there are 1.075 moles in 34.4 g of Oxygen gas.
Prepare one solution that has 0.12 M of FeCl3 and 0.40 M of HCl with the reagents 3 M HCl and Solid FeCL3 * 6H20. Provide the calculations and protocol to make the solution in a lab.
Answers
To prepare a 0.12 M solution of FeCl₃, the amount of solid FeCl₃ to be dissolved in a given volume of solvent will be 9.72 grams.
Given,
Molarity of FeCl₃ (M)= 0.12 M
The molecular weight (m) of FeCl₃ is = 162 gm
The volume of the solution (V) to be prepared is =500 ml
The amount of FeCl₃ to be dissolved to make a 0.12 M solution is= x
So,
MV= x ÷ m × 1000
0.12× 500 = x ÷ 162 × 1000
x = 60 × 162 ÷ 1000
x= 9.72 gm
So 9.72 grams of FeCl₃ is dissolved to make 500 ml of 0.12 M solution.
For preparing 0.4 M HCl from 4M HCL:
If we need to make 500 ml of solution with 0.4M of HCL, then we use the formula:
M₁V₁= M₂V₂
0.4 × 500= 4 × x
x= 50 ml
So 50 ml of 4M HCL is taken to make 0.4 M HCL.
To learn more about FeCl₃, refer to the link:
https://brainly.com/question/32098087
#SPJ1
HELP ME OUT PLEASE!!!!!!!!!
Compare and contrast model A with model C. How are they alike: How are they different?
A) They are composed of different elements in the same ratio.
B) They are composed of the same elements in different ratios.
C) They are composed of different elements in different ratios
D) The are composed of the same elements but the bond types differ
Answers
Answer:
Model C has more double the oxygen than A. I think it is B
Explanation:
what is the difference between average and total kinetic energy?
Answers
Answer:
Explain the difference between total and average molecular kinetic energy of a gas contained in a box. As an average K.E. of the particles increases, the object's temperature increases. Total Kinetic Energy is the sum of energy. Explain how a liquid thermometer measure temperature.
The total kinetic energy of a body or a system is equal to the sum of the kinetic energies resulting from each type of motion.
What is the minimum volume (mL) of 4.00 M KOH required for the reaction below to go to completion (only products present at the end of the reaction) if 1.1798 g of aluminum foil is used?
2 Al(s) + 2 KOH(aq) + 6 H2O(l) → 2 KAl(OH)4(aq) + 3 H2(g)
Answers
The volume of the KOH that would be used in the reaction is 11 mL.
What is stoichiometry?By the time we look at the reaction equation which is;
2 Al(s) + 2 KOH(aq) + 6 H2O(l) → 2 KAl(OH)4(aq) + 3 H2(g), we can then consider the stoichiometry of the reaction that we have as follows.
Number of mols of Al = 1.1798 g /27 g/mol
= 0.044 moles
Given that;
2 moles of Al reacts with 2 moles of KOH
Then the number of moles of the KOH is 0.044 moles
Number of moles = Concentration * volume
Volume = Number of moles/Concentration
Volume = 0.044 moles/4 M
= 0.011 L or 11 mL
Learn more about stoichiometry:https://brainly.com/question/3021529
#SPJ1
An unknown compound contains only carbon, hydrogen, nitrogen, and oxygen. Complete combustion of a 2.77 g sample of the compound gives 6.64 g CO2 and 1.67 g H2O. Another sample of mass 1.69 g was found to contain 0.143 g N. The molar mass of the compound was found to be 165 g mol−1. Find the molecular formula of the unknown compound
Answers
The molecular formula of the unknown compound is determined as C₉H₁₁NO₂.
Molecular formula of the compoundThe molecular formula is calculated as follows;
CHNO + O₂ ------------> CO₂ + H₂O
Mass of carbon, C: = (6.64 x 12)/44 = 1.81 g in 2.77 g sample
Mass of hydrogen, H: = (1.67 x 2)/18 = 0.186 g in 2.77 g sample
Mass of Nitrogen, N: = (2.77 x 0.143)/1.69 = 0.234 g
Mass of oxygen, O: = 2.77 g - 1.81 g - 0.186 g - 0.234 g = 0.54 g
molar ratio of the elements:C = 1.81 g = 0.15 mol
H = 0.186 g = 0.186 mol
N = 0.234 g = 0.017 mol
O = 0.54 g = 0.0337 mol
divide through with the smallest number of moles (0.017 mol);
C = 9
H = 11
N = 1
O = 2
Molecular formula = C₉H₁₁NO₂
Check the molar mass of the compound = (9 x 12) + (11 x 1) + (14) + (2 x 16) = 165 g/mol
Thus, the molecular formula of the unknown compound is determined as C₉H₁₁NO₂.
Learn more about molecular mass here: https://brainly.com/question/21334167
#SPJ1
What is the coefficient for sodium chloride when this equation is balanced?
Answers
Answer:
To resolve this, we need to place the coefficient “2” in front of the sodium in the reactant, to give the equation shown below. 2 Na (s) + Cl 2 (g) → 2 NaCl (s) In this equation, there are two sodiums in the reactants, two sodiums in the products, two chlorines in the reactants and two chlorines in the products; the equation is now balanced.
Explanation:
For the following statements about chemical equations, check the boxes that represent true statements_ (Select all that apply:) In the chemical equation for reaction; the notation (ag) means the substance is pure liquid. In chemical reactions, matter is neither created nor destroyed s0 chemical equation must have the same nmber of atoms on both sides of the equation In a chemical equation the reactants are On the right and the products are On the left. The coefficients in a balanced chemical equation refer to the number of grams of reactants and products. To balance chemnical equation_ we need t0 count atoms Submit
Answers
True statements
In a chemical reaction, matter is neither created nor destroyed so, A chemical formula must have the same number of atoms on both sides of the equation (True). This principle, known as the law of conservation of mass, states that matter cannot be created or destroyed. In a chemical reaction, the number of atoms in each element must be the same on both sides of the formula.
To balance a chemical formula, you must count atoms (True) To balance a chemical formula, you must ensure that each element on both sides of the formula has the same number of atoms. This is usually done by adding coefficients to the reactants and products to balance the equations.
False statements
In chemical equations; the notation (ag) means that the substance is pure liquid (Incorrect). The notation (ag) is usually used to indicate that a substance is solid.
In chemical formulas, reactants are on the right and products are on the left (Incorrect). In chemical formulas, reactants are usually written on the left side of the arrow and products on the right side.
The coefficients of the balanced chemical formula are related to the number of grams of reactants and products (Incorrect) Coefficients in chemical formulas represent the relative number of molecules or atoms in each reactant and product. They do not indicate the mass of matter.
Read more about chemical reactions at:
brainly.com/question/29668810
#SPJ4
A biochemical reaction at constant temperature and pressure in a cellular environment is at equilibrium when the absolute temperature is equal to which of the following?
a. 0
b. -(ΔH)(ΔS)
c. -RT log Keq
d. ΔH/ΔS
Answers
c) At constant temperature and pressure, in a cellular environment, a biochemical reaction is at equilibrium when the absolute temperature is equal to -RT log Keq.
A biochemical reaction at equilibrium is a state in which the rate of the forward reaction is equal to the rate of the reverse reaction. At this point, the concentrations of the reactants and products remain constant.
The equilibrium constant, Keq, is a measure of the relative concentrations of reactants and products at equilibrium. It is given by the equation:
Keq = [products]^c / [reactants]^a
The negative natural logarithm of the equilibrium constant, -ln(Keq) is known as the Gibbs free energy change, ΔG.
At constant temperature and pressure, the Gibbs free energy change is related to the enthalpy change, ΔH, and entropy change, ΔS, by the following equation: ΔG = ΔH - TΔS
The above equation can be further simplified by using the ideal gas law and the universal gas constant R.
ΔG = -RT ln(Keq)
So, at constant temperature and pressure, in a cellular environment, a biochemical reaction is at equilibrium when the absolute temperature is equal to -RT log Keq.
Learn more about the biochemical reactions here:
https://brainly.com/question/17356295
#SPJ4