Chem Ch 9 Stoichiometry Review

The correct formula for Percent yield is

• (Actual/Theoretical) x 100

• (Theoretical / Actual) x 100

• (Limiting/ Excess) x 100

• (Limiting/Actual)/100

Tags

NGSS.HS-PS1-7

The substance not completely used up in a chemical reaction is the

• limiting reactant

• Limiting yield

• Excess reactant

• Actual yield

Tags

NGSS.HS-PS1-7

Which conversion requires the fewest number of steps?

• Mole to Mole

• Mole to Gram

• Gram to Mole

• Gram to Gram

Which conversion requires the most steps?

• Mole to Mole

• Mole to Gram

• Gram to Mole

• Gram to Gram

Theoretical yield is usually

• greater than actual yield

• less than actual yield

• equal to percent yield

• greater than percent yield

Tags

NGSS.HS-PS1-7

Which conversion(s) are used to convert grams of one substance to grams of another in stoichiometry?

• Mole ratio

• density

• molar mass

• Avogadro's number

The substance that restricts the amount of product produced or the amount of other reactants used is the

• limiting reactant

• limiting product

• excess reactant

• actual yield

Tags

NGSS.HS-PS1-7

Knowing a mole ratio of reactant to product allows you to determine

• the energy released

• whether the reaction is reversible

• the speed of the reaction

• the mass of product produced from given amount of reactant

Tags

NGSS.HS-PS1-7

If a chemist calculates the maximum amount of yield to expect from a reaction, they are calculating the

• limiting reactant

• percent yield

• theoretical yield

• actual yield

Tags

NGSS.HS-PS1-7

For the equation 2 NaN₃ → 2Na + 3N₂, the mole ratio of nitrogen to sodium is

• 1:1

• 2:3

• 3:2

• 2:2