Stoichiometry and Related Topics

Calculations based on quantitative relationships, such as mass and moles, of substances in chemical reactions is known as __________.

AKA the math we use to determine amounts of products and reactants.

• Calculus

• Mole Ratios

• Chemistry

• Stoichiometry

A _________ compares the amounts of compounds in a reaction. The numbers used are the Coefficients from the balanced equation.

We use this to convert from one compound in an equation to a different compound.

• Limiting Reactant

• Molar Mass

• Mole Ratio

• Percent Yield

The Reactant that is used up first is called the ..............

• Limiting Reactant

• Excess Reactant

The Reactant that is NOT used up is called the ..............

• Limiting Reactant

• Excess Reactant

This reactant determines the maximum amount of product you could produce.

• Limiting Reactant

• Excess Reactant

What is the Molar Mass of water, H₂O?

• 18 g/mol

• 17 g/mol

• 15 g/mol

• 10 g/mol

Tags

NGSS.HS-ESS2-5

What is the Molar Mass of Lead (Pb)?

• 207 g/mol

• 82 g/mol

• 101 g/mol

• 18 g/mol

Tags

NGSS.HS-PS1-1

What is the Molar Mass of Chalk?

CaCO₃

• 100 g/mol

• 68 g/mol

• 34 g/mol

• Mmmm...chalk...

If you react 28g of Nitrogen, how many grams of NH₃ could you produce?

1N₂ + 3H₂ --> 2NH₃

• 17 grams

• 8.5 grams

• 10000000000000 grams

• 34 grams

If you react 2g of Hydrogen, how many moles of NH₃ could you produce?

1N₂ + 3H₂ --> 2NH₃

• 1.5 moles

• 11.33 moles

• 0.0000001 moles

• 0.667 moles