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Worksheetsstoichiometry pt 1
Total questions: 25
Worksheet time: 29mins
........ C + ........ S8 -> ........ CS2
1, 1, 4
4, 1, 4
4, 4, 4
1, 4, 4
........ N2 + ........ O2 -> ........ N2O5
1, 5, 2
2, 5, 2
2, 10, 2
1, 10, 1
........ H3PO4 + ....... KOH -> ........ K3PO4 + ........ H2O
1, 3, 1, 3
1, 3, 3, 1
3, 1, 1, 3
3, 1, 3, 1
........ Al(OH)3 + ........ H2CO3 -> ........ Al2(CO3)3 + ........ H2O
2, 3, 2, 6
2, 3, 1, 6
2, 3, 1, 3
2, 3, 2, 3
What is the atom used as a standard for determination of 1 mol?
carbon-12
oxygen-16
hydrogen-1
carbon-13
1 mol of N2 gas = ............ particles of N2 gas
1.4 x 1023
6.02 x 1023
14 x 1023
60.2 x 1023
3 moles of N2 gas = ................ dm3 of N2 gas
420
42
72
7.2
2 moles of O2 gas = ............... grams of O2 gas
16
24
32
64
84 grams of Fe = ................ moles of Fe
3.23
2.80
1.50
0.75
40 grams of Ne gas = ................ moles of Ne gas
4.00
2.00
1.33
1.00
120 grams of solid NaOH = ................ moles of solid NaOH
6.00
3.00
3.75
2.00
144 dm3 of gaseous C4H10 = ................ moles of gaseous C4H10
6.00
4.23
3.60
2.48
N2 (g) + 3 H2 (g) -> 2 NH3 (g)
How many grams of NH3 can be formed from 6.0 grams of H2 ?
17.0
34.0
51.0
68.0
N2 (g) + 3 H2 (g) -> 2 NH3 (g)
How much volume of N2 is needed to form 24 dm3 of NH3 ?
6 dm3
8 dm3
12 dm3
18 dm3
N2 (g) + 3 H2 (g) -> 2 NH3 (g)
How much volume of N2 is needed to form 34 grams of NH3 ?
6 dm3
12 dm3
18 dm3
24 dm3
What is the concentration of NaOH solution with 40 grams of pure NaOH dissolved in 2 liters of water?
20 mol/l
2 mol/l
1 mol/l
0.5 mol/l
How much grams of pure NaOH is dissolved in 500 cm3 of 1.5 mol/l NaOH solution?
20 grams
30 grams
40 grams
60 grams
How much water is needed to make 1 mol/l NaOH solution with 10 grams of pure NaOH?
200 cm3
250 cm3
400 cm3
500 cm3
How much water is needed to dilute 500 cm3 of 1 mol/l NaOH solution to 0.2 mol/l?
2000 cm3
1500 cm3
750 cm3
500 cm3
How much pure NaOH must be added
to increase concentration of 500 cm3 NaOH solution
from 1 mol/l to 1.5 mol/l?
5 grams
10 grams
15 grams
20 grams
........ Al2O3 -> ........ Al + ........ O2
How many kilograms of Al will be produced from 306 kg of Al2O3 ?
81 kg
121.5 kg
162 kg
648 kg
........ CH4 (g) + ........ O2 (g) -> ........ CO2 (g) + ........ H2O (g)
How many kilograms of CH4 must be burned to produce 2.2 kg of CO2 ?
5 kg
0.5 kg
8 kg
0.8 kg
........ LiBr (aq) + ........ Cl2 (g) -> ........ LiCl (aq) + ........ Br2 (l)
How many grams of LiCl will be produced from 17.4 g LiBr?
8.5
17
42.5
85
........ Al (s) + ........ H2SO4 (aq) -> ........ Al2(SO4)3 (aq) + ........ H2 (g)
How many grams of H2SO4 will fully react with from 54 g Al?
81
98
196
294
........ Al (s) + ........ H2SO4 (aq) -> ........ Al2(SO4)3 (aq) + ........ H2 (g)
How much volume of H2 will be produced from 81.0 g Al?
9.0 dm3
108.0 dm3
121.5 dm3
243.0 dm3
