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29/09/2020 3:52 pm
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The molar concentration of 20 g of NaOH present in 5 litre of solution is :
(a) 0.1 moles/litre
(b) 0.2 moles/litre
(c) 1.0 moles/litre
(d) 2.0 moles/litre
1 Answer
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29/09/2020 3:55 pm
(a) 0.1 moles/litre
Explanation:
Molar concentration = Mole/Vol. in L
= (20/40)/5 = 20/5 x 40 = 0.1 moles/litre