Question

Use the table of molar masses to complete the question. Do NOT use any other values except the onesprovided in the table below.
Element
Molar Mass (g/mol)
carbon
12.01
hydrogen
1.01
oxygen
16.00
A chemist will use a sample of 30g of glucose (
) in an experiment. Determine the number ofmoles of glucose the chemist will use based on the molar mass values provided in the table. (Your valueshould be rounded to 2 decimal places; i.e. the hundredths place).

Answer 1

Molar mass of glucose (C6H12O6) = 6(12.01) + 12(1.01) + 6(16.00) = 180.18 g/mol.
Moles = 30 g ÷ 180.18 g/mol = 0.17 mol (rounded to 2 decimal places).