The pH of the resultant solution obtained by mixing 20mL of 0.01M HCl and 20mL of 0.005M Ca(OH)2 is

Question

The pH of the resultant solution obtained by mixing 20mL of 0.01M HCl and 20mL of 0.005M Ca(OH)2 is (A) 2 (B) 0 (C) 1 (D) 7

Tardigrade Admin · Accepted Answer

Ca ( OH )2+2 HCl arrow CaCl 2+2 H 2 O n=0.005 × (20/1000) 0.01 × (20/1000) 1 × 10-4 2 × 10-4 1 mol Ca ( OH )2 arrow 2 mol HCl 1 × 10-4 mol Ca ( OH )2 arrow 2 × 10-4 mol HCl HCl Solution is neutral in nature p H =7

Q. The $p H$ of the resultant solution obtained by mixing $20 m L$ of $0.01 M H Cl$ and $20 m L$ of $0.005 M C a (O H)_{2}$ is

$2$

$0$

$1$

$7$

$5$

Q. The pH of the resultant solution obtained by mixing 20mL of 0.01MHCl and 20mL of 0.005MCa(OH)2​ is

2

0

1

7

5

Ca(OH)2​+2HCl→CaCl2​+2H2​O n=0.005×100020​0.01×100020​ 1×10−42×10−4 1molCa(OH)2​→2molHCl 1×10−4molCa(OH)2​→2×10−4molHClHCl Solution is neutral in nature pH=7

Q. The $p H$ of the resultant solution obtained by mixing $20 m L$ of $0.01 M H Cl$ and $20 m L$ of $0.005 M C a (O H)_{2}$ is

$2$

$0$

$1$

$7$

$5$