Question

what will be the molar mass of compound which is is 20 g on dissolving in 2 Litres water gives N/20 solution valency of metallic compound is +2?​

Answer 1

Answer:

1.0 m

Explanation:

We know,

Molality =  

weight of solvent (kg)

moles

​

 

Molality =(  

molecular weight

weight

​

)×  

(volume×density)

1000

​

      [Note: density =1 gm/cm  

3

]

Molality =  

40

20

​

×  

500

1000

​

×1=1 m