Analyzing Chemical Reactions

1

1

Al + HCl → AlCl₃ + H₂

2Al+ 6HCl+2AlCl₃+H₂

2

P₄O₁₀ + H₂O → H₃PO₄

P₄O₁₀ + 6H₂O → 4H₃PO₄

3

KClO₃ → KClO₄ + KCl

4KClO₃ → 3KClO₄ + KCl

4

How many grams are there in 5.2 moles of carbon dioxide?

(given multiply to the molar mass of carbon dioxide)

228.84 grams of carbon dioxide

5

P₄O₁₀ + 6H₂O → 4H₃PO₄

What is the molar mass of P₄O₁₀?

283.886 g/mol

2

1

How many particles are there in 1.2 moles of hydrogen?

7.224 x 10²³

2

N₂+3H₂->2NH₃

How many moles of  hydrogen are produced if 2.22 moles of N₂ reacts to form ammonia?

(multiply the given to the ratio of reactant/reactant) 

6.66 moles N₂

3

What is the molar mass of glucose? C6H12O6

180.18 g/mol

4

How many grams will there be in 5.2 moles of rubidium sulfide? in whole number

 1056 grams

5

P₄O₁₀ + 6H₂O → 4H₃PO₄

400 g of P₄O₁₀

400 g of H₂O

How many moles of P₄O₁₀ is this?

(given divided by the molar mass of P4O10)

1.41 mol

3

1

What is the value of avogadro's number?

6.02 x 10²³

2

How many atoms are there in a 3.2 moles of nitrate?

1.9264 x 10²⁴

3

What is the molar mass of Disulfur monoxide?

80.119 g/mol

4

Theoretical yield = 2.22 g of the product

Actual yield = 1.498 g of the product

is the reaction acceptable or not? 

Acceptable

5

P₄O₁₀ + 6H₂O → 4H₃PO₄

400 g of P₄O₁₀

400 g of H₂O

How many moles of the product will produce if 400 g P₄O₁₀ reacts with water?

5.64 moles of H₃PO₄

4

1

4.2 moles of Ammonium sulfate has how many atoms?(multiply to 6.02 x 10²³)

2.5284 x 10²⁴

2

N₂+3H₂->2NH₃

How many moles of Ammonia are produced if 0.5 moles of hydrogen (H₂) reacts?

0.33 moles of ammonia

3

How many grams are there in 1.1 mole of water?

Step 1: molar mass of water

Step 2: multiple to the given mole

19.8 grams

4

9.5 moles of sucrose has how many atoms?

5.719 x 10²⁴

5

P₄O₁₀ + 6H₂O → 4H₃PO₄

400 g of P₄O₁₀

400 g of H₂O

Which one is the limiting reactant?

P₄O₁₀

5

1

__ N₂+ __ H₂  ->  ___ NH₃

1, 3, 2

2

What is the molar mass of sodium sulfate?

142.05 g/mol

3

It is the amount of substance obtained from the lab data. 

Actual Yield

4

Suppose you burn magnesium in a limiting amount of oxygen in a closed system, expecting to get 6.22 g MgO. You measure only 4.992 g MgO after the reaction. What is the percent yield for this reaction?

80.26 percent

5

P₄O₁₀ + 6H₂O → 4H₃PO₄

400 g of P₄O₁₀

400 g of H₂O

How many moles of the product will produce if 400 g of water will react to P₄O_10?

14.80 moles of H₃PO₄