1.

Calculate themolarity of a solution obtained by mixing 250 mL of 0.5 MHClwith 750mL of 2 M HCl.

Answer»

`1.8`
`2.0`
`1.6`
`0.8`

Solution :`N_("Mixture")=(N_(1)V_(1)+N_(2)V_(2))/(V_(1)+V_(2))`
` = ((0.5)250+(2xx750))/(250+750) = 1.625`N
`:. ` Molarity = 1.625N(as HCl is MONOBASIC acid)


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