A flask contains 0.330 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask. express your answer numerically in molecules.

Question

Chemistry

Cali Bass

27 December, 16:32

A flask contains 0.330 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask. express your answer numerically in molecules.

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Answers (1)

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Nolan Scott · Answer 1

Answer is: the number of bromine molecules present in the flask is 1,987·10²³.

n (Br₂) = 0,330 mol.

N (Br₂) = n (Br₂) · Na.

N (Br₂) = 0,330 mol · 6,022·10²³ 1/mol.

N (Br₂) = 1,987·10²³.

n - amount of substance.

Na - Avogadro constant, the number of constituent particles (in this case bromine molecules), that are contained in the amount of substance given by one mole.