Mole and % Comp Short Quiz

5 sec video

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CHEM1.PS1.7

What would be the molar mass of Sodium?

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What is the correct molar mass for Mg(OH)₂? (Round to the hundredths place) Just enter the number, NO UNIT!

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CHEM1.PS1.1

How many atoms are in 1.258 mol of calcium carbonate, CaCO₃?

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CHEM1.PS1.1

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What would you use to solve the problem, "How many atoms are in 2.3 moles of Na?"

• Avogadro's number

• molar mass

• Avogadro's number and molar mass

• the atomic number

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CHEM1.PS1.1

CHEM1.PS1.3

What would you use to solve the problem, "How many atoms are in 235g of Na?"

• Avogadro's number

• molar mass

• Avogadro's number and molar mass

• the atomic number

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CHEM1.PS1.1

CHEM1.PS1.3

How many grams are in 1.2 x 10²⁴ atoms of C?

• 29.34 grams

• 23.94 grams

• 6.02 grams

• 1.21 grams

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CHEM1.PS1.1

CHEM1.PS1.3