This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Stoichiometry-III”.
1. In the reaction CaSO4 + 2 NaCl → CaCl2 + Na2SO4, how many kg of CaSO4 are required to produce 1 mole of Na2SO4 (assuming NaCl is in excess)?
a) 136 kg
b) 156 kg
c) 176 kg
d) 196 kg
View Answer
Explanation: 1 mole of CaSO4 produces 1 mole of Na2SO4.
2. In the reaction CaSO4 + 2 NaCl → CaCl2 + Na2SO4, how many kg of Na2SO4 will be produced using 80 kg of NaCl (assuming CaSO4 is in excess)?
a) 122 kg
b) 142 kg
c) 162 kg
d) 182 kg
View Answer
Explanation: 2 moles of NaCl produce 1 mole of Na2SO4.
3. In the reaction CaSO4 + 2 NaCl → CaCl2 + Na2SO4, how many moles of CaCl2 will be produced using 300 kg of CaSO4 (assuming NaCl is in excess)?
a) 2.2 kg
b) 4.2 kg
c) 6.2 kg
d) 8.2 kg
View Answer
Explanation: 1 mole of CaSO4 produces 1 mole of CaCl2.
4. In the reaction CaSO4 + 2 NaCl → CaCl2 + Na2SO4, how many pounds of NaCl are required to produce 2.5 pound moles of Na2SO4 (assuming CaSO4 is in excess)?
a) 200
b) 400
c) 90800
d) 181600
View Answer
Explanation: 2 pound moles of NaCl produce 1 pound mole of Na2SO4.
5. In the reaction CaSO4 + 2 NaCl → CaCl2 + Na2SO4, if 1/A pound moles of CaSO4 are used to produce 222 kg of CaCl2 (assuming NaCl is in excess), what is the value of A?
a) 127
b) 227
c) 327
d) 427
View Answer
Explanation: 1 pound mole of CaSO4 produces 1 pound mole of CaCl2.
6. When 32gms of CH4 is burned with excess oxygen, how many grams of CO2 are produced?
a) 44
b) 88
c) 132
d) 176
View Answer
Explanation: 1 gram mole of CH4 = 1 gm mole of CO2.
7. How many grams of C2H6 are required to produce 88 grams of CO2 when it is burned in the excess of oxygen?
a) 15
b) 30
c) 45
d) 60
View Answer
Explanation: 1 gram mole of C2H6 = 2 gram moles of CO2.
8. In the reaction 3 NO2 + H2O → 2 HNO3 + NO, is the reaction balanced?
a) Balanced
b) Unbalanced
c) Partially balanced
d) None of the mentioned
View Answer
Explanation: The number of atoms of each element is equal on both sides of the reaction.
9. In the reaction 3 NO2 + H2O → 2 HNO3 + NO, how many grams of NO2 are required to produce 4 gram moles of HNO3?
a) 274
b) 275
c) 276
d) 277
View Answer
Explanation: 3 gram moles of NO2 produce 2 gram moles of HNO3.
10. In the reaction 3 NO2 + H2O → 2 HNO3 + NO, if there are 400 grams of NO2 in the feed, how many moles of HNO3 will be produced?
a) 2.797
b) 3.797
c) 4.797
d) 5.797
View Answer
Explanation: 3 gram moles of NO2 produce 2 gram moles of HNO3.
Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation, here is complete set of 1000+ Multiple Choice Questions and Answers.
