How many moles of hydrogen atoms are there in 2.50 mol of C6H12O6?

a) 2.50

b) 30.0

c) 1.51 × 1024

d) 1.81 × 1025

The chemical formula C6H12O6 indicates that there are 6 moles of hydrogen atoms in 1 mole of C6H12O6. Thus, to find the number of moles of hydrogen atoms in 2.50 mol of C6H12O6, you can multiply 2.50 mol by the conversion factor:

2.50 mol C6H12O6 * 6 mol H2 / 1 mol C6H12O6

Multiplying these numbers yields:

2.50 mol * 6 mol H2 / 1 mol = 15 mol H2

Therefore, option b) is the correct answer: 30.0.