When 20 mL `M//20` NaOH is added to 10 ml of `M//10` HCl. The resulting has pH

When 20 mL `M//20` NaOH is added to 10 ml of `M//10` HCl. The resulting has pH
A. `lt7`
B. `=7`
C. `gt7`
D. `~~2`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - B
Millimoles of HCl `=(1)/(20)xx 10 =1`
Millimoles of NaOH `=(1)/(10)xx10=1`
Since millimoles are equal, the resulting solution is neutral and has pH `=7`

4 views Answered 2023-02-05 15:29

Related Questions

To a 4L of 0.2M solution of `NaOH, 2L` of `0.5M NaOH` are added. The molarity of resulting solution is

2 Answers 6 Views

`CH_(3)NH_(2)` (0.12 mole, `pK_(b)`=3.3) is added to 0.08 moles of HCl and the solution is diluted to on litre, resulting pH of solution is :

2 Answers 5 Views

2.5 litre of `1M NaOH` solution is mixed with another 3 litre solution of `0.5M NaOH` solution. Then the molarity of the resulting solution is

2 Answers 9 Views

0.365g of HCl gas was passed through 100 `cm^(3)` of 0.2 M NaOH solution. The pH of the resulting solution would be

2 Answers 4 Views

50 mL of 0.1 M HCl and 50 mL of 2.0 M NaOH are mixed. The pH of the resulting solution is

2 Answers 4 Views

20mL of 0.5 M HCl and 35 mL of 0.1 N NaOH are mixed. The resulting solution will

2 Answers 4 Views

What volume of aqueous solution of NaOH that is `80%` by mass NaOH, contanis 0.4 mol of NaOH. Density of solution is `0.8 gm//ml`.

2 Answers 7 Views

2.5 litre of 1M NaOH solution is mixed with a 3.0 litres of 0.5 M NaOH solution. The molarity of the resulting solution is :

2 Answers 5 Views

To a 100 mL of 0.1 M weak acid HA solution 22.5 mL of 0.2 M solution of NaOH are added.Now, what volume of 0.1 M NaOH solution be added into above sol

2 Answers 15 Views

Assertion(A) : Heat of neutralisation of `HCl` and `NaOH` is same as that of `H_(2)SO_(4)` with `NaOH`. Reason(R ) : `HCl`, `H_(2)SO_(4)` and `NaOH` a

2 Answers 7 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)