U3: Flashcard 2 - Mole Conversions and Balancing

Front

Avogadro’s number is:

Back

6.02 x 10²³

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Back

Front

How many water molecules are in 5.2 moles of water?

Back

3.1 x 10²⁴ molecules

Front

How many moles of methane (CH₄) are in 1.24 x 10²⁶ molecules of methane?

Back

206 moles

Front

The mass of one mole of a substance is called...

Back

molar mass

Front

How many moles are in 47 g of KCl (molar mass = 74.551 g/mol)?

Back

0.63 mole

Front

Determine how many grams are in 0.36 moles of CCl₄ (molar mass = 153.82 g/mol)

Back

55 g

Front

How many moles are in 16.94 g of water? (hint: find the molar mass of water)

Back

0.9403 mole

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Back

Front

How many atoms would be contained in 454 grams of iron?

Back

4.89 x 10²⁴ atoms