Moles Particles

What is Avogadro's number?

• 6.02Ex10²⁵g/mol

• 6.22x10²⁵particles/mole

• 6.02x10²³particles/mol

• 6.02x10²³grams/mole

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CHEM1.PS1.1

CHEM1.PS1.3

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

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CHEM1.PS1.1

How many moles of copper are 4.57 x 10¹³ atoms of copper?

• 7.59 x 10¹¹ moles

• 2.75 x 10³⁷ moles

• 7.59 x 10^-11 moles

• 2.75 x 10³³ moles

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CHEM1.PS1.1

Determine the number of atoms in 2.50 moles of Zinc.

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1 mole of Si contains

• 6.02x10²³ molecules

• 6.02x10²³ atoms

• 6.02x10²³ formula units

• lots of stuff

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Avogadro's number of representative particles is equal to one_____.

• kilogram
• gram
• kelvin
• mole

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Determine the amount of moles in 4.50 x 10²³ atoms of fluorine.

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Determine the number of atoms in 0.50 moles of zinc.

• 3.01 x 10²³ atoms

• 4.15 x 10^-24 atoms

• 2.71 x 10^-22 atoms

• 303 atoms

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CHEM1.PS1.1

How many moles are 2.85 x 10²⁰ atoms of iron?

• 4.73 x 10^-4 moles
• 1.72 x 10⁴ moles
• 1.72 x 10^-42 moles
• 4.73 x 10⁴ moles

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CHEM1.PS1.1

How many molecules are in 9.4 moles of AlCl₃?

• 5.66
• 5.66x10²⁴
• 0.705
• 1.25x10²³

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CHEM1.PS1.1