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3 years ago

A 0.55 g sample of H20 contains how manymolecules of water?Answer in units of molec.

Chemistry

1 answer:

noname [10]3 years ago

7 0

Answer:

Explanation:

Num of molecules = num of moles * Avogadro's constant (6.02* 10^23)

But num of moles = reacting mass / molar mass

Molar mass of H20= 2*1 + 16 = 2+16 = 18g

Reacting mass of H20 = 0.55g

Therefore, num of moles of H20 = 0.55g/18g = 0.031 moles

Therefore, num of molecules of H20 = 0.031 * 6.02*10^23

= 1.87*10^22 molecules of H20

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8.3mL

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Given parameters:

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Answer:

Explanation:

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2 years ago

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A 0.55 g sample of H20 contains how manymolecules of water?Answer in units of molec.​

A 0.55 g sample of H20 contains how manymolecules of water?Answer in units of molec.