A sample of carbon-12 a mass of 6.00g. How many atoms of carbon-12 are in the sample?

Question

Chemistry

Xander Wolf

29 January, 19:43

A sample of carbon-12 a mass of 6.00g. How many atoms of carbon-12 are in the sample?

+1

Answers (1)

Know the Answer?

Luis Bonilla · Answer 1

Answer is: there are 3·10²³ atoms of carbon-12.

m (C) = 6.00 g; mass of carbon.

M (C) = 12 g/mol.

n (C) = m (C) : M (C).

n (C) = 6 g : 12 g/mol.

n (C) = 0.5 mol.

N (C) = Na · n (C).

n (C) = 6·10²³ 1/mol · 0.5 mol.

n (C) = 3·10²³.

n - amount of substance.

M - molar mass.

Na - Avogadro number.