Question

The number of hydrogen atoms in 0.050 mol of c3h8o3 is

Answer 1

2.40 × 10²³ Atoms of Hydrogen

Solution:

The number of hydrogen atoms in C₃H₈O₃ are calculated as;

As, there are eight hydrogen atoms per molecule of C₃H₈O₃, therefore the number of hydrogen atoms per mole of C₃H₈O₃ are calculated as;

1 mole C₃H₈O₃ contains = 6.022 × 10²³ Molecules of C₃H₈O₃

So,

0.05 mole C₃H₈O₃ will contain = X Molecules of C₃H₈O₃

Solving for X,

X = (0.05 × 6.022 × 10²³) ÷ 1

X = 3.011 × 10²² Molecules of C₃H₈O₃

As,

1 Molecule of C₃H₈O₃ contains = 8 Atoms of Hydrogen

So,

3.011 × 10²² Molecules of C₃H₈O₃ will contain = X Atoms of Hydrogen

Solving for X,

X = (3.011 × 10²² × 8) ÷ 1

X = 2.40 × 10²³ Atoms of Hydrogen