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Stoichiometry Conversions

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Questions and Answers

In stoichiometry, what conversion directly follows the 'grams A' step when calculating 'grams B'?

grams B
grams A
moles B
moles A (correct)

What value is always equivalent to one mole of a substance?

Concentration
Volume
Molar mass (correct)
Density

In a balanced chemical equation, where do you find the coefficients used for mole-to-mole conversions?

Superscripts of ions
Subscripts of compounds
In front of the chemical formulas (correct)
Molar mass of reactants

What is the first step in determining the limiting reactant when initial values are given in grams?

<p>Convert grams to moles (A)</p> Signup and view all the answers

What formula is used to calculate percent yield?

<p>$\frac{actual yield}{theoretical yield}$ x 100% (D)</p> Signup and view all the answers

Flashcards

Grams A to Moles A

Conversion from grams of substance A to moles of substance A.

Moles A to Moles B

Conversion from moles of substance A to moles of substance B using the coefficients from the balanced chemical equation.

Limiting Reactant

Reactant that limits the amount of product formed. It is completely consumed first.

Theoretical Yield

The maximum amount of product that can be produced from the complete conversion of the limiting reactant.

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Actual Yield

The actual amount of product obtained from a reaction. Often less than the theoretical yield.