Stoichiometry

Front

How many particles are in 13.5 grams of Beryllium?

Back

9x10²³ particles

Front

12.00 moles of NaClO₃ will produce how many grams of O₂? Options: 256 g of O₂, 576 g of O₂, 288 g O₂

Back

576 g of O₂

Front

B₂H₆ + 3O₂ --> 2 HBO₂ + 2 H₂O
What mass of O₂ will be needed to burn 36.1 g of B₂H₆?

Back

124 g O₂

Front

2CO + O₂ → 2CO₂
How many liters of carbon dioxide are produced from 10L of carbon monoxide?

Back

10

Front

In a lab, a scientist calculates he should produce 12.3 grams of product in his experiment. When he is finished collecting his product it weighs 10.1 grams. What is his percent yield?

Back

82%

Front

When 12 moles of O₂ reacts with 1.1 mole of C₁₀H₈, what is the limiting reactant? C₁₀H₈ + 12 O₂ --> 10 CO₂ + 4 H₂O

Back

Oxygen

Front

4 Al + 3 O₂ –> 2 Al₂O₃ How much aluminum is needed to react with 45 grams of O₂?

Back

1.875 moles

Front

What is the percent yield of the reaction if 145g of P₂O₅ reacts with 40 grams of water, but you only collected 112 grams of phosphoric acid? 3 H₂O + P₂O₅ → 2H₃PO₄

Back

77%

Front

2Al + 3H₂SO₄ -> Al₂(SO₄)₃ + 3H₂
How many grams of aluminum sulfate would be formed if 250g H₂SO₄ completely reacted with aluminum? Options: 0.85 g, 290 g, 450 g, 870 g

Back

290 g

Front

How many liters of NH₃ are needed to react completely with 30.0L of NO?
4NH₃+6NO --> 5N₂ + 6H₂O
Options: 5.0 L, 20.0 L, 7.5 L, 120.0 L

Back

20.0 L