8 g NaOH is dissolved in one litre of solution, the
molarity of the solution is:-
(1) 0.2 M
(2) 0.4 M
(3) 0.02 M
(4) 0.8 M
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8 g NaOH is dissolved in one litre of solution, the
molarity of the solution is:-
(1) 0.2 M
(2) 0.4 M
(3) 0.02 M
(4) 0.8 M
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Explanation:
the correct option is 1 0.2M
Given that 8g of Naoh is one litre of solution
first the number of moles of the Naoh is
moles=given mass/molar mass
given mass =8g
molar mass (Naoh)=23+16+1=40u
Moles of the Naoh:
The molarity of the solution is
➡Molarity = number of moles/volume of solution is litres