Question

What is the molarity of a solution containing 10g of NaOH
in 500 mL of solution ?
(a) 0.25 mol L-
(b) 0.75 mol L-
(C) 0.5 mol L-1
(d) 1.25 mol L-1​

Answer 1

Answer:

0.5 molar

Explanation:

Molarity is a concentration term in which the no. of moles and the volume are related.

Molarity

(

c

)

=

no. of moles

(

n

)

volume in L

(

V

)

Here

n

=

10 g

40 g/mol

V

=

500 mL

=

0.5 L

So

c

=

n

V

=

10 g

40 g/mol

×

0.5 L

=

10 mol

20 L

=

0.5 molar

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