concentration of an aqueous hcl solution is 0.8m.calculate number of grams of hcl present in 25 ml of this solution

Dear ​Manideep Varma,

0.8 molal of HCl=0.8 moles are present in 1 kg (1L) of waterwt. of HCl in 0.8 moles=0.8×36.5=29.2 g present in 1000 ml water or solution (volume does not change)1000 ml=29.2 g25 ml=25×29.21000=0.73 g HCl 

Regards

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