Answer:
Number of moles = 0.21 mol
Explanation:
Given data:
Mass of NaOH = 8.45 g
Number of moles = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of NaOH = 40 g/mol
by putting values in formula
Number of moles = 8.45 g / 40 g/mol
Number of moles = 0.21 mol
