Normal concentration
Answers are for parents and teachers.
1
400 mL of solution contains 8 g of NaOH (E = 40). Find the normal concentration.
0.5 N
2
What is the normal concentration of a 0.25 M H₂SO₄ solution?
0.5 N
3
How many grams of H₂SO₄ are in 500 mL of 2 N H₂SO₄ solution (E = 49)?
49
4
How many mL of 0.3 N NaOH neutralise 30 mL of 0.2 N H₂SO₄?
20
5
Why do H₂SO₄ and HCl solutions of equal molar concentration have different normal concentrations?
H₂SO₄ gives two H⁺ (E = M/2) while HCl gives one (E = M).