Moles to Grams Stoichiometry

Mole ratios are obtained from the

• balanced chemical equation

• periodic table

• molar mass

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

• Write a Balanced Equation

• Panic

• Write an Unbalanced Equation

• Avogadro's Number

In solving a mass-mass (gram to gram) conversion, it is necessary to convert to the given mass to moles.

• true

• false

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

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NGSS.HS-PS1-7

NaClO₃ (s) --> 2NaCl (s) +3 O₂
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

Which of the following would have the highest number of moles?

• 4g CO₂

• 15g H₂O

• 22g NaCl

• 100g AgCl

What is the total number of moles contained in 115 g of C₂H₅OH?

• 0

• 1.5

• 3.0

• 2.5

What is the molar mass of water (H2O)?

• 18 g/mol

• 20 g/mol

• 16 g/mol

• 22 g/mol

In the reaction 2H2 + O2 -> 2H2O, how many grams of water are produced from 4 moles of hydrogen gas? (Molar mass of H2O = 18 g/mol)

• 36 g

• 72 g

• 144 g

• 18 g