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Calculate the mass (in g) of each sample. 5.73x10^20 SO3 molecules

Question

Calculate the mass (in g) of each sample. 

5.73x10^20 SO3 molecules 

check_circleAnswer
Step 1

Given:

Number of molecules = 5.73x1020 molecules.

Molar mass of SO3 = 80 g/mol.

Step 2

Calculation for number of moles of SO3:

1 mole of any substance contain 6.023x1023 molecules.

6.023 x 1023 molecules 1 mole of SO3
5.73 x 1020 molecules x moles of SO3
5.73 x 1020 molecules x 1 mole of SO3
х—
6.023 x 1023 molecules
x = 9.5135 x 10-4 moles
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6.023 x 1023 molecules 1 mole of SO3 5.73 x 1020 molecules x moles of SO3 5.73 x 1020 molecules x 1 mole of SO3 х— 6.023 x 1023 molecules x = 9.5135 x 10-4 moles

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Step 3

Calculation for mass of...

mass
number of moles
molar mass
mass number of moles X molar mass
mass 9.5135 x 104 mol x 80 g/mol
mass 0.076g.
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mass number of moles molar mass mass number of moles X molar mass mass 9.5135 x 104 mol x 80 g/mol mass 0.076g.

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