Question

Calculate the mass in amu of a sample of carbon that contains 62 atoms

Answer 1

744 atomic mass units (a.m.u)

Explanation:

We know that 1 carbon atoms weighs 12 atomic mass units (a.m.u). Knowing this we devise the following reasoning:

if        1 carbon atom have a mass of 12 atomic mass units (a.m.u)

then  62 carbon atoms have a mass of X atomic mass units (a.m.u)

X = (62 × 12) / 1 = 744 atomic mass units (a.m.u)

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atomic mass units

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