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A sugar crystal contains approximately 2.0×1017 sucrose (C12H22O11) molecules. What is its mass in mg?

Question

A sugar crystal contains approximately 2.0×1017 sucrose (C12H22O11) molecules. What is its mass in mg?

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Step 1

Relation between mass and number of molecules is:

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Step 2

From above formula, we can deduce:

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Step 3

Here we have:

Number of molecules of sucrose = 2.0×1017 molecules.

Chemical formula of sucrose = C12H22O11

Atomic mass of C = 12 g/mol

Atomic mass of H = 1 g/mol

Atomic mass of O = 16 g/mol...

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