Calculate the value of
obtained at
hcl from
8.85g of
of Nacl

Explanation:

5.85g of nacl ,

molecular mass of nacl is 58.44 approx.

therefore no. of moles of nacl are 0.1

and 90g of water,

molecular mass of water is 18

therefore no. of moles are 5

mole fraction=no.of moles of nacl / no. of moles of nacl +no. of moles of water.

mole fraction = 0.1 / 0.1+5

=0.1/5.1

= 1 / 51. ( Ans )

it's c. elements are placed in rows based on how may valencies electrons have.

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