Question

How many water molecules are in a block of ice containing 1.25 mol of water (H2O)

Answer 1

Answer:

Molecules = 7.5 × 10²³ molecules

Explanation:

Given:

Moles = 1.25 mol

Avogadro's No. = $N_{A}$ = 6.022 * 10²³

Required:

Molecules = ?

Formula:

Molecules = Moles × $N_{A}$

Solution:

Molecules = 1.25 × 6.022 × 10²³

Molecules = 7.5 × 10²³ molecules