Answer:
Mass = 150 g
Explanation:
Given data:
Mass of NaOH = ?
Volume of solution = 2.5 dm³ or 2.5 L
Molarity of solution = 1.5 M
Solution:
Formula:
Molarity = number of moles / volume in L
Number of moles = 1.5 M × 2.5 L
Number of moles = 3.75 mol
Mass of sodium hydroxide:
Mass = number of moles × molar mass
Mass = 3.75 mol × 40 g/mol
Mass = 150 g
