60) If 20 ml of 1M HCl solution is exactly neutralised by 10 ml of Ca (OH)2solution, the strength of - Chemistry - Solutions

Question

60) If 20 ml of 1M HCl solution is exactly neutralised by 10 ml of
Ca (OH)2solution, the strength of Ca(OH)2 in grams per litre of the
solution is
A) 37 B) 74 C)111 D)148

Monika Malik · Accepted Answer

we can calculate the molarity of Ca(OH)2 using the
formula:
n1M1V1 (HCl) =
nâ€‹2M2V2
(Ca(OH)2
n1 (basicity) of HCl = 1
n2 (acidity ) of Ca(OH)2 = 2
So,
1× 1M × 20mL = 2×M2 × 10
M2 = 1 M
Molarity of Ca(OH)2 = 1 M
Strength = Molar mass × molarity
= 74 gmol-1 × 1 mol L-1
= 74 gL-1

60) If 20 ml of 1M HCl solution is exactly neutralised by 10 ml of Ca (OH)2solution, the strength of Ca(OH)2 in grams per litre of the solution isA) 37 B) 74 C)111 D)148

60) If 20 ml of 1M HCl solution is exactly neutralised by 10 ml of Ca (OH)2solution, the strength of Ca(OH)2 in grams per litre of the solution is
A) 37 B) 74 C)111 D)148