1.

X. and .Y. are two different solutions of hydrochloric acidwith concentrations 5M and 2M respectively. If one litre of 3M hydrochloric acid is to be prepared by mixing only X and Y calculate their volumes.

Answer»

Solution :Volume of solution .X. is V mL
Volume of solution .Y. is (1000-V)mL
MOLARITY desired to be obtained =3M
Volume desired to be obtained =1000mL
`M=(Vxx5(1000-V)2)/(1000)=3`
SOLVING, V=333.3ml
The volumes of Solutions .X. and .Y. are to be MIXED are RESPECTIVELY 333.3mL and 666.7mL.


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