5-12: Mole/Stoichiometry Conversions

Last updated 10 months ago

20 questions

Mole Conversions:

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Stoichiometry Conversions:

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What conversion factor would you use to convert from moles to number of formula units?

1 mole = 6.02x1023 particles

Mole A = Mole B

1 mole = molar mass

Calculate the molar mass for carbon tetrabromide?

171.8 g

154.8

91.9 g

331.6 g

What is the mass of one mole of (NH4)2CO3?

96.11 g (NH4)2CO3

50.10 g (NH4)2CO3

78.1 g (NH4)2CO3

82.10 g (NH4)2CO3

How many moles are in 3.45 grams of potassium oxide?

0.154 mol potassium oxide

325 mol potassium oxide

0.0366 mol potassium oxide

0.0642 mol potassium oxide

How many moles are in 1.20x1025 atoms of phosphorus?

7.22x1048 mol P

1.99x1047 mol P

19.9 mol P

2.03 mol P

How many molecules are in 1.13 grams H2O?

3.78x1022 molecules H2O

5.73x1024 molecules H2O

6.80x1023 molecules H2O

1.23x1025 molecules H2O

How many grams are in 1.20x1024 formula units of Ca(NO3)2?

294 grams Ca(NO3)2

416 grams Ca(NO3)2

327 grams Ca(NO3)2

151 grams Ca(NO3)2

How many moles are in 58.5 grams of sodium chloride?

0.623 mol NaCl

1.65 mol NaCl

1.00 mol NaCl

2.54 mol NaCl

How many atoms are in 35.0 grams C12H22O11?

6.15x1022 atoms C12H22O11

0.100 atoms C12H22O11

3.25x1029 atoms C12H22O11

2.77x1024 atoms C12H22O11

What conversion factor would you use to convert from moles of substance A to moles of substance B?

1 mole = molar mass

Mole A = Mole B

1 mole = 6.02x1023 particles

Which dimensional analysis set up would be used if you needed to convert from moles of AgNO3 to the mass of AgNO3 ?

Which dimensional analysis set up would be used if you needed to convert from mass of Al2(SO4)3 to moles of Al2(SO4)3 ?

2KBr + Cl2 → 2KCl + Br2
How many moles of KCl are produced from 8.4 moles of Cl2?

8.4 mol KCl

16.8 mol KCl

4.2 mol KCl

8.8 mol KCl

Fill in the blanks below for the mole ratio of O2 to H2O in the equation: C7H16 + O2 → CO2 + H2O

_______ mole O2 = _______ mole H2O

4Al + 3O2 → 2Al2O3
How many atoms of Al are needed to react with 50.0 grams of O2?

4.01x1025 atoms Al

7.05x1023 atoms Al

2.51x1024 atoms Al

1.25x1024 atoms Al

4FeS + 7O2 → 2Fe2O3 + 4SO2
How many grams of Sulfur Dioxide are produced if 124 grams of Iron (II) Sulfide are used?

362.0 grams Sulfur Dioxide

45.1 grams Sulfur Dioxide

5.64 grams Sulfur Dioxide

90.4 grams Sulfur Dioxide

2KBr + Cl2 → 2KCl + Br2
How many particles of KCl are produced when 254 grams of KBr react?

1.28x1024 particles KCl

159 particles KCl

318 particles KCl

2.56x1024 particles KCl

H2 + O2 → H2O
Using the equation above, how many moles of H2O can be produced from 2.30 grams of O2?

0.0719 mol H2O

0.144 mol H2O

2.59 mol H2O

0.288 mol H2O

P4 + O2 → P2O5
Using the equation above, how many moles of diphosphorus pentaoxide can be produced from 1.23 moles of O2?

2.46 mol P2O5

0.492 mol P2O5

3.08 mol P2O5

1.23 mol P2O5

Al + FeO→ Al2O3 + Fe
Using the equation above, how many grams of Iron can be produced from 10.5 grams of Aluminum?

21.7 g Fe

32.6 g Fe

0.584 g Fe

14.5 g Fe

What conversion factor would you use to convert from moles to number of formula units? 

1 mole = 6.02x1023 particles

Mole A = Mole B

1 mole = molar mass

Calculate the molar mass for carbon tetrabromide?

171.8 g

154.8

91.9 g

331.6 g

What is the mass of one mole of (NH4)2CO3?

96.11 g (NH4)2CO3

50.10 g (NH4)2CO3

78.1 g (NH4)2CO3

82.10 g (NH4)2CO3

How many moles are in 3.45 grams of potassium oxide? 

0.154 mol potassium oxide

325 mol potassium oxide

0.0366 mol potassium oxide

0.0642 mol potassium oxide

How many moles are in 1.20x1025 atoms of phosphorus? 

7.22x1048 mol P

1.99x1047 mol P

19.9 mol P

2.03 mol P

How many molecules are in 1.13 grams H2O?

3.78x1022 molecules H2O

5.73x1024 molecules H2O

6.80x1023 molecules H2O

1.23x1025 molecules H2O

How many grams are in 1.20x1024 formula units of Ca(NO3)2?

294 grams Ca(NO3)2

416 grams Ca(NO3)2

327 grams Ca(NO3)2

151 grams Ca(NO3)2

How many moles are in 58.5 grams of sodium chloride? 

0.623 mol NaCl

1.65 mol NaCl

1.00 mol NaCl

2.54 mol NaCl

How many atoms are in 35.0 grams C12H22O11?

6.15x1022 atoms C12H22O11

0.100 atoms C12H22O11

3.25x1029 atoms C12H22O11

2.77x1024 atoms C12H22O11

What conversion factor would you use to convert from moles of substance A to moles of substance B?  

1 mole = molar mass

Mole A = Mole B

1 mole = 6.02x1023 particles

Which dimensional analysis set up would be used if you needed to convert from moles of AgNO3 to the mass of AgNO3 ?

Which dimensional analysis set up would be used if you needed to convert from mass of Al2(SO4)3 to moles of Al2(SO4)3 ?

2KBr + Cl2 → 2KCl + Br2
How many moles of KCl are produced from 8.4 moles of Cl2?

8.4 mol KCl

16.8 mol KCl

4.2 mol KCl

8.8 mol KCl

4Al + 3O2 → 2Al2O3
How many atoms of Al are needed to react with 50.0 grams of O2?

4.01x1025 atoms Al

7.05x1023 atoms Al

2.51x1024 atoms Al

1.25x1024 atoms Al

4FeS + 7O2 → 2Fe2O3 + 4SO2
 How many grams of Sulfur Dioxide are produced if 124 grams of Iron (II) Sulfide are used? 

362.0 grams Sulfur Dioxide

45.1 grams Sulfur Dioxide

5.64 grams Sulfur Dioxide

90.4 grams Sulfur Dioxide

2KBr + Cl2 → 2KCl + Br2
How many particles of KCl are produced when 254 grams of KBr react? 

1.28x1024 particles KCl

159 particles KCl

318 particles KCl

2.56x1024 particles KCl

H2 + O2 → H2O
Using the equation above, how many moles of H2O can be produced from 2.30 grams of O2?

0.0719 mol H2O

0.144 mol H2O

2.59 mol H2O

0.288 mol H2O

P4 + O2 → P2O5
Using the equation above, how many moles of diphosphorus pentaoxide can be produced from 1.23 moles of O2?

2.46 mol P2O5

0.492 mol P2O5

3.08 mol P2O5

1.23 mol P2O5

Al + FeO→ Al2O3 + Fe
Using the equation above, how many grams of Iron can be produced from 10.5 grams of Aluminum?

21.7 g Fe

32.6 g Fe

0.584 g Fe

14.5 g Fe

5-12: Mole/Stoichiometry Conversions

5-12: Mole/Stoichiometry Conversions

What conversion factor would you use to convert from moles to number of formula units?

Calculate the molar mass for carbon tetrabromide?

What is the mass of one mole of (NH4)2CO3?

How many moles are in 3.45 grams of potassium oxide?

How many moles are in 1.20x1025 atoms of phosphorus?

How many molecules are in 1.13 grams H2O?

How many grams are in 1.20x1024 formula units of Ca(NO3)2?

How many moles are in 58.5 grams of sodium chloride?

How many atoms are in 35.0 grams C12H22O11?

What conversion factor would you use to convert from moles of substance A to moles of substance B?

Which dimensional analysis set up would be used if you needed to convert from moles of AgNO3 to the mass of AgNO3 ?

Which dimensional analysis set up would be used if you needed to convert from mass of Al2(SO4)3 to moles of Al2(SO4)3 ?

2KBr + Cl2 → 2KCl + Br2How many moles of KCl are produced from 8.4 moles of Cl2?

4Al + 3O2 → 2Al2O3How many atoms of Al are needed to react with 50.0 grams of O2?

4FeS + 7O2 → 2Fe2O3 + 4SO2 How many grams of Sulfur Dioxide are produced if 124 grams of Iron (II) Sulfide are used?

2KBr + Cl2 → 2KCl + Br2How many particles of KCl are produced when 254 grams of KBr react?

H2 + O2 → H2OUsing the equation above, how many moles of H2O can be produced from 2.30 grams of O2?

P4 + O2 → P2O5Using the equation above, how many moles of diphosphorus pentaoxide can be produced from 1.23 moles of O2?

Al + FeO→ Al2O3 + FeUsing the equation above, how many grams of Iron can be produced from 10.5 grams of Aluminum?

2KBr + Cl2 → 2KCl + Br2
How many moles of KCl are produced from 8.4 moles of Cl2?

4Al + 3O2 → 2Al2O3
How many atoms of Al are needed to react with 50.0 grams of O2?

4FeS + 7O2 → 2Fe2O3 + 4SO2
How many grams of Sulfur Dioxide are produced if 124 grams of Iron (II) Sulfide are used?

2KBr + Cl2 → 2KCl + Br2
How many particles of KCl are produced when 254 grams of KBr react?

H2 + O2 → H2O
Using the equation above, how many moles of H2O can be produced from 2.30 grams of O2?

P4 + O2 → P2O5
Using the equation above, how many moles of diphosphorus pentaoxide can be produced from 1.23 moles of O2?

Al + FeO→ Al2O3 + Fe
Using the equation above, how many grams of Iron can be produced from 10.5 grams of Aluminum?