Two samples of HCl having 1M and 0.25 M are mixed. Find the volumes of these samples respectively taken in order to prepare 0.75 M HCl solution.

Question

Two samples of HCl having 1M and 0.25 M are mixed. Find the volumes of these samples respectively taken in order to prepare 0.75 M HCl solution.

Two samples of HCl having 1M and 0.25 M are mixed. Find the volumes of these samples respectively taken in order to prepare 0.75 M HCl solution.
A. 20 ml, 10 ml
B. 100 ml, 50 ml
C. 40 ml, 20 ml
D. 50 ml, 25ml

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A,B,C,D
Final molarity =`(V_1xx1+V_2xx0.25)/((V_1+V_2))`
`0.75(V_1+V_2)=V_1+V_2xx0.25`
`0.75 V_1+0.75 V_2=V_1+V_2xx0.25`
`0.5 V_2=0.25V_1`
`V_1/V_2=2`

4 views Answered 2023-02-05 15:29