Moles and Mole Conversions

What is the first thing you must do to solve a stoichiometry problem?

• Write a Balanced Equation

• Panic

• Write an Unbalanced Equation

• Ask for help

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

4NH₃ + 5O₂ --> 4NO + 6H₂O
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen? 

• 0.37g

• 0.045g

• 1.35g

• 11.1g

Tags

NGSS.HS-PS1-7

Given the equation: 2NaClO₃ (s) → 2NaCl (s) + 3O₂ (g) 2.00 moles of NaClO₃ will produce how many grams of O₂? (mass of O₂ = 32g/mol)

• 56 g of O₂

• 96 g of O₂

• 64 g O₂

• 32 g O₂

Tags

NGSS.HS-PS1-7

What is the total mass in grams of 0.75 mole of SO₂?

• 16 g

• 24 g

• 32 g

• 48 g

Tags

NGSS.HS-PS1-7

Find the mass of 5 moles of water.

• 18.02 g

• 36.04 g

• 90.1 g

• 25.0g

What is stoichiometry?

• The study of how the quantities of reactants and products are related in chemical reactions

• The study of the speed of reactions

• The study of how chemical reactions occur

• The study of types of reactions

Tags

NGSS.HS-PS1-7

What is the limiting reactant if 10 moles of NH₃  react  with 30.0 moles of NO?
4NH₃+6NO --> 5N₂ + 6H₂O

• NH₃

• NO

• N₂

• water

Tags

NGSS.HS-PS1-7

How many molecules are in 2.5 mol of NaCl?

• x10²⁴ molecules

• molecules

• molecules

• x10²⁴ molecules

Tags

NGSS.HS-PS1-7

How many moles are in 3.01 x 10²² atoms of magnesium?

• 0.05 moles

• 1.81 x 10⁴⁶ moles

• 5.00 x 10²¹ moles

• 5.00 moles