Amount of substance Flashcards

1
Q

Why do chemists use substances?

A

working with solutions is safer than working with pure substances
easier to store
easier to measure

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2
Q

What is concentration?

A

a measure of how much solute is dissolved per volume of solvent

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3
Q

What is volume measured in?

A

dm3

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4
Q

How many dm3 is 1L?

A

1

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5
Q

What is actual yield?

A

the actual amount of desired product created in a reaction

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6
Q

What is theoretical yield?

A

the amount of desired product that could be produced if all the reactants fully reacted and nothing was lost

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7
Q

What is a % yield?

A

how efficient a reaction is at converting reactants into products

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8
Q

How do you calculate % yield?

A

actual/theoretical x100

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