Moles to Grams and Grams to Moles Practice

What is the mass in grams of 5.90 mol C₈H_18?

• .0512 g

• 19.4 g

• 673 g

• 389 g

How many moles are in 19.82 g Mg? 

• 1.226mol Mg

• 481.7mol Mg

• 1.000mol Mg

•  0.8156 mol Mg

Gas grills use propane fuel. The combustion of propane is represented in this equation: C₃H₈ + 5O_{2 ---->} 3CO₂ + 4H₂O. How many grams of propane will burn when 36.0 moles of water are formed?

• 0.500 g C₃H₈

• 9.00 g C₃H₈

• 318 g C₃H₈

• 397 g C₃H₈

Tags

NGSS.HS-PS1-7

NaClO₃ (s) --> 2NaCl (s) +3 O₂ (g)
12.00 moles of NaClO₃ will produce how many grams of O₂?

• 256 g of O₂

• 576 g of O₂

• 288 g O₂

Tags

NGSS.HS-PS1-7

How many grams are in 7.8 moles of NaCl?

• 476 grams

• 460 grams

• 452 grams

• 462 grams

Tags

NGSS.HS-PS1-7

2NaClO₃ (s) → 2NaCl (s) + 3O₂ (g) 12.00 moles of NaClO₃ will produce how many grams of O₂? NaClO₃ = 106.44 g/mol ; O₂ = 32.00 g/mol

• 256 g of O₂

• 576 g of O₂

• 288 g of O₂

• 384 g of O₂

Tags

NGSS.HS-PS1-7

How many step will it take for me to go from moles given to moles unknown?

• 1

• 2

• 3

• 4

Use the following equation:
2NaOH(aq) + H₂SO₄(aq) --> 2H₂O(l) + Na₂SO₄(aq)
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide?

• 150.22 g Na₂SO₄

• 593.44 g Na₂SO₄

• 330.04 g Na₂SO₄

• 297.65 g Na₂SO₄

Tags

NGSS.HS-PS1-7

• 45.0 g

• 90.0 g

• 18.0 g

• 36.0 g

• 0.855 mol

• 1.71 mol

• 0.500 mol

• 2.00 mol