WorksheetsMoles and Stoichiometry
Total questions: 11
Worksheet time: 46mins
How many molecules are in 3.6 grams of sodium chloride (NaCl)?
0.06
1.0 X 1021
1.3 x 1026
3.7 x 1022
What is the molar mass of C2H4O2?
40 g/mol
50 g/mol
60 g/mol
68 g/mol
The number 6.02 x 1023 is called...
Obama's number and it measures the amount of gases or liters in a mole
Bohr's number and it measures the amount of molecules or atoms in a sample
Avogadro's number and it measures the amount of gas in moles
Avogadro's number and it measures the amount of molecules or atoms in a sample
How many moles would be in 8.40 grams of octane, C8H18?
0.0735 moles
5.04 x 1024 moles
959 moles
0.645 moles
_N2 + _H2 → _NH3
What is the mole ratio between N2 and NH3 if you balanced the above equation correctly?
1 moles NH3 / 2 moles N2
2 moles NH3 / 1 moles N2
2 moles N2 / 3 moles NH3
1 moles N2 / 3 moles NH3
Which of the following represent a mole ratio between silver nitrate and copper(II) nitrate in the following reaction:
2AgNO3 + _Cu → _Cu(NO3)2 + 2Ag
2 : 2
1 : 2
1 : 1
2 : 1
Using the following equation:
_Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
4 moles Fe
6 moles Fe
9 moles Fe
2 moles Fe
_Fe (s) + _S (l) → _FeS (s)
In the experiment above, 7.62 g of Fe are allowed to react with 8.67 g of S.
How much FeS is formed?
14.8 g
12.2 g
13.7 g
19.9 g
2Na + 2H2O → 2NaOH+ _H2
How many grams of hydrogen are produced if 120 g of Na are available?
5.2 g
2.6 g
690 g
45 g
2 NaClO3 (s) → 2NaCl (s) +3 O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?
64 g of O2
576 g of O2
288 g O2
0.563 g O2
