1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LenKa [72]
3 years ago
15

If 50.8 grams of calcium carbonate are decomposed what is the theoretical yield of carbon dioxide

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
7 0
The percent yield is 45 %.
CaCO₃ →CaO + CO₂
First, calculate the theoretical yield of CaO.
Theor. yield =
60 g CaCO
3
×
1 mol CaCO
3
100.0 g CaCO
3
×
1 mol CaO
1 mol CaCO
3
×
56.08 g CaO
1 mol CaO
=
33.6 g CaO
Now calculate the percent yield.
% yield =
actual yield
theoretical yield
×
100
%
=
15 g
33.6 g
×
100
%
=
45
You might be interested in
In a combustion analysis, the carbon in a hydrocarbon fuel is
scoray [572]
During a combustion reaction the carbon in a hydrocarbon compound is paired with Oxygen (O2) in the air to form Carbon-Dioxide (CO2), whilst the Hydrogen too pairs with Oxygen to form water vapour (H2O). Heat is also produced during this reaction.
7 0
4 years ago
What is the relationship between density and boiling point
stiv31 [10]

Answer:

A liquid in a vacuum has a lower boiling point than when that liquid is at atmospheric pressure. A liquid at high-pressure has a higher boiling point than when that liquid is at atmospheric pressure. In other words, the boiling point of a liquid varies depending upon the surrounding environmental pressure

Explanation:

8 0
4 years ago
Olympic cyclists fill their tires with helium to make them lighter. Assume that the volume of the tire is 860 mL , that it is fi
nata0808 [166]

Answer:

a)  the mass of air = 8.24 grams

b) the mass of helium = 1.14 grams

c) the mass difference = 7.10 grams

Explanation:

Step 1: Data given

Volume of the tire = 860 mL

Total pressure = 120 psi

Temperature = 26°C

molar mass of air = 28.8 g/mol

Step 2:  Convert psi to atm

(

120 psi) (1 atm / 14.7 psi) = 8.163

Step 4: Calculate moles

PV = nRT

 ⇒ with P = the pressure = 8.163 atm

⇒ with V = the volume = 860 mL = 0.860 L

⇒ with n = the number of moles = TO BE DETERMINED

⇒ with R = the universal gas constant = 0.08206 L*atm/K*mol

⇒ with T = the temperature = 26 °C = 299 Kelvin

n = (8163*0.860)/(0.08206*299)

n = 0.2861 moles of gas

Step 5: Calculate the mass of air in an air-filled tire.

Mass = moles * molar mass

Mass = (0.2861 moles of gas) (28.8 g/mol)  

Mass = 8.24 grams

Step 6: Calculate the mass of helium in a helium- filled tire.

mass of helium = 0.2861 moles of gas * 4 g/mol)  

mass of helium  = 1.14 grams

Step 7: What is the mass difference between the two?

Δmass=  8.24 grams -  1.14 grams

Δmass= 7.10 grams

8 0
4 years ago
Assume a single Br replacement in the reaction of methane and Br2. Use a structural diagram to show the products of the reaction
Damm [24]
A detail reaction mechanism that is operative during the reaction methane and bromine gas is shown below.

In present mechanism, Br2 undergoes homolytic bond fission under irradiation with UV light. This results in generation of two Br· free radicals.

This, this free radical abstracts H· from methane to form HBr. This process in turn generates methyl radical.

Methyl radical combines with other Br· to form bromomethane.

UV irritation in present reaction systems, initiates chain of events  

8 0
3 years ago
Please select the word from the list measure air pressure
MatroZZZ [7]

Barometer is used to measure air pressure.

6 0
3 years ago
Other questions:
  • 1. Nuclear decay by alpha particle emission is more common in atoms of elements that:
    14·1 answer
  • What is meant by the term payback period
    6·1 answer
  • Question 1 of 10
    6·1 answer
  • Determine the number of Nitrogen atoms present in 4.00 moles of N2O5
    11·1 answer
  • Why did the thirteen American colonies want to purchase goods from the West Indies? A.The West Indies were the only places that
    11·2 answers
  • What is always a molecule but not always a compound? ("A ___ is always a molecule, but a ___ is not always a compound.") Please
    6·2 answers
  • Determine the force of gravitational attraction between a 4,000 kg elephant that is 10 meters away from a 180 kg lion.​
    12·1 answer
  • Help meeeeeeeeeeeeeeeeee
    5·1 answer
  • We cannot simultaneously know a subatomic particle precise momentum and its position
    13·1 answer
  • Help pls do the last two all work and last two questions
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!