An Easy Quiz On Stoichiometry
Stoichiometry is the calculation that deals with the amount of reactants required and the amount of products formed during a chemical reaction. It is based on the Law of Conservation of Mass according to which the total mass before and after a chemical reaction remains undisturbed. The following quiz is an easy stoichiometry test. Balance all equations before solving. Good Luck!
- 1.
Na + Cl2 --> NaCl (unbalanced) How many moles of chlorine gas (Cl2) would react with 5.0 moles of sodium (Na) according to the following chemical equation?- A.
1.0
- B.
1.5
- C.
2.0
- D.
2.5
- E.
3.0
- 2.
Na + Cl2 --> NaCl (unbalanced) Using the equation (after it is balanced) above, determine the amount of product that can be produced from 24.7 g Na. (in grams)
- A.
55
- B.
62
- C.
71
- D.
82
- E.
84
- 3.
In the reaction C8H18 + O2 --> CO2 + H2O (unbalanced) If 27.3g of C8H18 are combusted, what mass of water will be produced?( in grams)
- A.
13.5
- B.
23.4
- C.
53.2
- D.
47.1
- E.
37.8
- 4.
CH4 + O2 --> CO2 + 2 H2O How many moles of O2 are required to burn 0.5 moles of CH4?
- A.
1
- B.
2
- C.
3
- D.
4
- E.
5
- 5.
NaOH + HCl --> NaCl + H2O How many grams of NaOH will react with 36.5 g of HCl? ( in grams)
- A.
40
- B.
60
- C.
80
- D.
100
- E.
120
- 6.
How many moles of water is formed from the combustion of 5 moles of hydrogen gas in oxygen gas?
- A.
2.5
- B.
4
- C.
5
- D.
7
- E.
None of the above
- 7.
Methane gas (CH4) gets burned in oxygen (O2) to form carbon dioxide (CO2) and water vapor (H2O). The balanced reaction is
- A.
CH4 --> CO2 + 2H2O
- B.
2CH4 + O2 --> 2CO2 + 2H2O
- C.
CH4 + 2O2 --> CO2 + 2H2O
- D.
3CH4 + 2O2 --> CO2 + 2H2O
- E.
4CH4 + 2O2 --> 4CO2 + 2H2O
- 8.
Methane gas (CH4) gets burned in oxygen (O2) to form carbon dioxide (CO2) and water vapor (H2O). If I burn 10 grams of methane, how many grams of CO2 will be produced?
- A.
42.7 grams of CO2
- B.
833 grams of CO2
- C.
20 grams of CO2
- D.
27.4 grams of CO2
- E.
30 grams of CO2
- 9.
In the decomposition of water to hydrogen gas and oxygen gas, how many moles of water is needed to produce 10.0 moles of oxygen gas?
- A.
5.00
- B.
10.0
- C.
15.0
- D.
20.0
- E.
25.0
- 10.
In the decomposition of water to hydrogen gas and oxygen gas, how many moles of water is needed to produce 32 grams of oxygen gas?
- A.
0.5
- B.
1.0
- C.
1.5
- D.
2.0
- E.
2.5
.jpg "Na + Cl2 --> NaCl (unbalanced)
Using the equation (after it is balanced) above, determine the amount of product that
can be produced from 24.7 g Na. (in grams)")
.jpg "In the reaction C8H18 + O2 --> CO2 + H2O (unbalanced)
If 27.3g of C8H18 are combusted, what mass of water will be produced?( in grams)")
.jpg "CH4 + O2 --> CO2 + 2 H2O
How many moles of O2 are required to burn 0.5 moles of CH4?")
.jpg "NaOH + HCl --> NaCl + H2O
How many grams of NaOH will react with 36.5 g of HCl? ( in grams)")
.jpg "How many moles of water is formed from the combustion of 5 moles of hydrogen gas in oxygen gas?")
.jpg "Methane gas (CH4) gets burned in oxygen (O2) to form carbon dioxide (CO2) and water vapor (H2O). The balanced reaction is")
.jpg "Methane gas (CH4) gets burned in oxygen (O2) to form carbon dioxide (CO2) and water vapor (H2O). If I burn 10 grams of methane, how many grams of CO2 will be produced?")
.jpg "In the decomposition of water to hydrogen gas and oxygen gas, how many moles of water is needed to produce 10.0 moles of oxygen gas?")
.jpg "In the decomposition of water to hydrogen gas and oxygen gas, how many moles of water is needed to produce 32 grams of oxygen gas?")
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