Gram to Gram Stoichiometry Practice

Calculate the mass of hydrogen formed when 27 g of aluminum reacts with excess hydrochloric acid according to the balanced equation below. 2Al + 6HCl → 2 AlCl3 + 3 H2

• 1.5 g

• 2.0 g

• 3.0 g

• 6.0 g

• 12 g

2Na + 2H₂O → 2NaOH+ H₂
How many grams of hydrogen are produced if 120 g of Na are available?

• 5.2 g

• 2.6 g

• 690 g

• 45 g

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

• 13.8 g O₂

• 3.86 mol of O₂

• 124 g O₂

Al + 3H₂SO₄ -> Al₂(SO₄)₃ + 3H₂
How many grams of aluminum sulfate would be formed if 250g H₂SO₄ completely reacted with aluminum?

• 0.85 g

• 290 g

• 450 g

• 870 g

• 14 grams

• 25 grams

• 56 grams

• 22 grams

Tags

DOK Level 3: Strategic Thinking

• 32 g

• 48 g

• 64 g

• 96 g

Tags

DOK Level 3: Strategic Thinking

• 32 g

• 48 g

• 64 g

• 96 g

Tags

DOK Level 3: Strategic Thinking

• 18 g

• 36 g

• 54 g

• 72 g

Tags

DOK Level 2: Skill/Concept

SiO₂ + 3C → SiC + 2CO
I need to add 8 moles of Carbon to the reaction. How many grams of Carbon should I weigh?

• _{96 g}

• 0.67 g

• 2.67 g

• 48 g

Tags

NGSS.HS-PS1-7

What is the mass in grams of 5.90 mol C₈H_18?

• .0512 g

• 19.4 g

• 673 g

• 389 g