limiting & mass to moles Stoich

2Al + 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

For the reaction represented by the equation Cl₂ + 2KBr → Br₂ + 2KCl, how many grams of potassium chloride can be produced from 356 grams potassium bromide?

• 749 g
• 225 g
• 479 g
• 814 g

Tags

NGSS.HS-PS1-7

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe
• 6 moles Fe
• 9 moles Fe
• 2 moles Fe

Tags

NGSS.HS-PS1-7

Balance this reaction: ____ RbNO₃ + ____ BeF₂ ----> ____ Be(NO₃)₂ + ____ RbF

• 1,1,1,1
• 1,2,1,1
• 2,1,1,2
• 2,1,2,1

Tags

NGSS.HS-PS1-7

• 4 mol H₂O

• 6.032 mol H₂O

• 12.375mol H₂

• 96 mol H₂O

Using the balanced chemical equation:

4NH₃ + 3O₂ --> 2N₂ + 6H₂O

Determine the amount of grams of N₂ is produced if 4.03 moles of NH₃ react?

• 28.0 g N₂

• 56.4 g N₂

• 2.02 g N₂

Tags

NGSS.HS-PS1-7

Using the balanced chemical equation:

2C₄H₁₀ + 13O₂ --> 10H₂O + 8CO₂

Calculate the number of grams of C₄H₁₀ needed to produce 5.12 moles of CO₂.

• 58.0 g C₄H₁₀

• 2.56 g C₄H₁₀

• 74.2 g C₄H₁₀

Tags

NGSS.HS-PS1-7

Using the balanced chemical equation:

2 Cu + O₂ --> 2 CuO

Determine the number of grams of O₂ needed to produce 0.7684 moles of CuO.

• 32.00 g O₂

• 0.3842 g O₂

• 12.29 g O₂

Tags

NGSS.HS-PS1-7

4NH₃ + 5O₂-->4NO + 6H₂O
What is the total number of moles of H₂O produced when 12 mole of NH₃ is completely consumed?

• 15
• 18
• 20
• 24

2 FeCl₃ + 3 H₂SO₄ → Fe₂(SO₄)₃ + 6 HCl

If 6.0 moles of sulfuric acid, H₂SO₄, react, how many moles of iron(III) sulfate, Fe₂(SO₄)₃ should be produced?

• 18 moles

• 1.0 mole

• 6.0 moles

• 2.0 moles

Tags

NGSS.HS-PS1-7