Find the weight of sodium hydroxide needed to form a 1M solution of 500 mL.

asked Jul 20, 2023 45.5k views

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$\\ \rm\Rrightarrow Molarity=(Moles\:of\:solute)/(Volume\:of\: solution \:in\:L)$

$\\ \rm\Rrightarrow 1=(n)/(0.5)$

$\\ \rm\Rrightarrow n=0.5mol$

$\\ \rm\Rrightarrow n=(Given\:mass)/(Molar\:mass)$

$\\ \rm\Rrightarrow 0.5=(Given\:mass)/(40)$

$\\ \rm\Rrightarrow Given\:mass=40(0.5)=20g$

Orjan answered Jul 26, 2023

by Orjan

8.3k points

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