Question

Write Concentration of each of following in g/L and mol/L.

1)7.3 g HCI in 100 ml of solution.
2)2g of NaOH in 50 ml of solution.​

Answer 1

Answer:

7.3 g HCl in 100 mL solution :

Concentration of HCl in g L

−1

=

Volume of HCl in litre

Mass of solute in gram

=

100

7.3×1000

=73 gL

−1

In terms of gram per litre :

7.3 g of HCI in 100 mL has concentration = 73gL

−1

Molecular mass of HCI = 1 + 35.5 = 36.5

Molarity=

Volume of HCl in L

Mass of solute in moles

=

36.5×100

7.3×1000

=2mol L

−1

In terms of moles per litre:

7.3 g of HCl in 100 mL has concentration = 2mol L

−1

Explanation:

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