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

Methuselah asked Nov 23, 2023

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Methuselah asked Nov 23, 2023

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20 votes

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

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

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

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

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

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

Whastupduck answered Nov 29, 2023

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