Stoichiometry Question Preview (ID: 45683)


TEKS C.8ABG. TEACHERS: click here for quick copy question ID numbers.

Based on the unbalanced chemical equation of: NH3 + O2 = N2 + H2O, how many moles of N2 will be produced from 4.5 mol O2?
a) 3.0 mol N2
b) 6.0 mol N2
c) 12 mol N2
d) 4.5 mol N2

Given the reaction: H2SO4 + 2NaOH= Na2SO4 + 2H2O, how many grams of H2SO4 would be required to react with 0.75 mol of NaOH?
a) 53 g H2SO4
b) 37 g H2SO4
c) 19 g H2SO4
d) 110 g H2SO4

Given the reaction: H2SO4 + 2NaOH= Na2SO4 + 2H2O, what mass of water is formed from 0.75 mol of NaOH?
a) 7.0 g H2O
b) 35 g H2O
c) 14 g H2O
d) 0.62 g H2O

Given the reaction: 2H2 (g) + O2 (g)= 2H2O (g), how many moles of hydrogen would be required to produce 5.0 mol of water?
a) 5.0 mol H2
b) 10. mol H2
c) 5 mol H2
d) 10 mol H2

Given the reaction: 2H2 (g) + O2 (g)= 2H2O (g), how many liters of oxygen would be required to produce 5.0mol water at STP?
a) 69 L O2
b) 0.11 L O2
c) 2.5 L O2
d) 56 L O2

Sodium chloride is produced from its elements through a synthesis reaction. What mass of Na would be required to produce 25.0 mol of NaCl?
a) 886 g NaCl
b) 575 g NaCl
c) 288 g NaCl
d) 58.4 g NaCl

In the reaction: 2RbNO3= 2RbN + 3O2, how many moles of O2 are produced when 5.0 mol of RbNO3 decompose?
a) 2.5 mol O2
b) 1.0 mol O2
c) 7.5 mol O2
d) 3.0 mol O2

In the reaction: 2RbNO3= 2RbN + 3O2, how many grams of O2 are produced when 5.0 mol of RbNO3 decompose?
a) 150 g O2
b) 50.0 g O2
c) 300 g O2
d) 450 g O2

In the reaction: 2RbNO3= 2RbN + 3O2, how many liters of O2 are produced when 5.0 mol of RbNO3 decompose?
a) 56 L O2
b) 22.4 L O2
c) 168 L O2
d) 112 L O2

In the reaction: 2N2H4 + (CH3)2N2H2 + 3N2O4 = 6N2+ 2CO2 + 8H2O, how many moles of water are produced from 50.0 grams of N2H4?
a) 6.25 mol H2O
b) 32.4 mol H2O
c) 400. mol H2O
d) 113 mol H2O

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