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WorksheetsStoichiometry #2
Total questions: 10
Worksheet time: 20mins
How many particles are in 2.50 moles of O2 at STP?
4,15 x 1022
2.21 x 1023
5.02 x 1023
1.51 x 1024
Zn + 2HCl = ZnCl2 + H2 What is the mass of H2 produced if 5.00 grams of Zn react in excess HCl?
0.308 g
0.0771 g
0.121 g
0.154 g
CH4 + 2O2 = CO2 + 2H2O How many molecules of water are produced from 3.00 g of Methane?
2.26 x 1023
6.02 x 1023
1.13 x 1024
3,39 x 1024
N2 + 3H2 = 2NH3 How many grams of hydrogen are needed to produce 15.0 moles of Ammonia if nitrogen is in excess?
15.0 g
22.5 g
45.0 g
90.0 g
2CH3OH + 3O2 = 2CO2 + 4H2O How many liters of carbon dioxide are produced at STP if 64.0 g of methanol are reacted?
11.2 L
22.4 L
44.8 L
89.6 L
2 AgNO3 + H2S = Ag2S + 2HNO3 What mass of dihydrogen sulfide will react with 2.00 moles of silver nitrate?
17.0 g
34.1 g
46.3 g
64.2 g
Magnesium chloride has the molar mass of 94 g/mol. What is the mass of 1.0 mole of magnesium chloride?
3 g
47 g
94 g
188 g
CH3CH2OH = CH2=CH2 + H2O What is the percent yield if the actual yield of ethene is 55.0 g from 100.0 g of ethanol?
3.6 %
55%
61%
90%
2SO2 + O2 = 2SO3 Which of the following makes oxygen the limiting reactant?
2 mol SO2, 1 mole O2
2 mol SO2, 2 mole O2
3 mol SO2, 1 mole O2
2 mole SO2, 3 mole O2
2Na + Cl2 = 2NaCl When 2.3 g of Na react with excess Cl2, how many grams of NaCl will be produced?
2.3 g
4.6 g
6.9 g
5.9 g
