Mole Conversions Worksheet

1
Mole Conversions Worksheet 2
2
Problem 1
3
6 H atoms
2.07 gBa(C2H3O2)2
6.022 x 1023 moleculesBa(C2H3O2)2
1 moleBa(C2H3O2)2
1 moleculeBa(C2H3O2)2
1 moleBa(C2H3O2)2
255 gBa(C2H3O2)2
2.93 x 1022 H atoms
4
Problem 2
5
238 g Ni3P2
1 molecule Ni3P2
7.2 x 1019 Ni atoms
1 mole Ni3P2
1 mole Ni3P2
6.022 x 1023 molecules Ni3P2
3 Ni atoms
0.0095 g Ni3P2 or 9.5 x 10-3 g Ni3P2
6
Problem 3
7
35 O atoms
0.43 gV2(Cr2O7)5
6.022 x 1023 moleculesV2(Cr2O7)5
1 moleV2(Cr2O7)5
1 moleculeV2(Cr2O7)5
1 moleV2(Cr2O7)5
1182 gV2(Cr2O7)5
7.7 x 1021 O atoms
8
Problem 4
9
129.6 g H2Te
1 molecule H2Te
2.394 x 1027 H atoms
1 mole H2Te
1 mole H2Te
6.022 x 1023 molecules H2Te
2 H atoms
257,600 g H2Te or 2.576 x 105 g H2Te
10
Problem 5
11
2 C atoms
1.86 g ZnC2O4
6.022 x 1023 moleculesZnC2O4
1 moleZnC2O4
1 moleculeZnC2O4
1 moleZnC2O4
153 gZnC2O4
1.46 x 1022 C atoms
12
Problem 6
13
492 g Tl(BrO)3
1 moleculeTl(BrO)3
4.56 x 1021 Br atoms
1 moleTl(BrO)3
1 moleTl(BrO)3
6.022 x 1023 molecules Tl(BrO)3
3 Br atoms
1.24 g Tl(BrO)3
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Problem 7
15
2 H atoms
15.34 gH2CO3
6.022 x 1023 moleculesH2CO3
1 moleH2CO3
1 moleculeH2CO3
1 moleH2CO3
62.03 gH2CO3
2.978 x 1023 H atoms
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Problem 8
17
68.1 g (NH4)2O2
1 molecule(NH4)2O2
3.6 x 1026 H atoms
1 mole(NH4)2O2
1 mole(NH4)2O2
6.022 x 1023 molecules (NH4)2O2
8 H atoms
5100 g (NH4)2O2 or 5.1 x 103 g (NH4)2O2
18
Problem 9
19
2 S atoms
0.35 gOs(SO3)2
6.022 x 1023 moleculesOs(SO3)2
1 moleOs(SO3)2
1 moleculeOs(SO3)2
1 moleOs(SO3)2
350. gOs(SO3)2
1.2 x 1021 S atoms
20
Problem 10
21
507 g Sn3As2
1 molecule Sn3As2
9.28 x 1020 Sn atoms
1 mole Sn3As2
1 mole Sn3As2
6.022 x 1023 molecules Sn3As2
3 Sn atoms
0.260 g Sn3As2 or 2.60 x 10-1 g Sn3As2