element composition

Question

A sample of monochloro tetraborane (10), B₄H₉Cl, contains 3.1 mol of the compound. Determine the amount (in mol) of each element present and the number of atoms of each element present in the sample.

B Moles BLANK Atoms BLANK

H moles BLANK atoms BLANK

CI moles BLANK atoms BLANK

Answer 1

3.1 mol B4H9Cl x 4 mol B / mol = 12.4 mol B x 6.02x10²³ ions/mol = atoms of B

3.1 mol B4H9Cl x 9 mol H / mol = 27.9 mol H x 6.02x10²³ ions/mol = atoms of H

3.1 mol B4H9Cl x 1 mol Cl / mol = 3.1 mol Cl x 6.02x10²³ ions/mol = atoms of Cl