Question

Can someone help me? the question is "How many grams of NaOH are dissolved in 0.750 liters of 2.00 molar NaOH? (The molar mass of NaOH = 40.00 g/mol)"

Answer 1

\[Molarity=\frac{ moles }{ Volume}\]
note that volume has to be taken in litres
\[2=\frac{ moles }{ 0.750 }\]\[1.5=moles\]
\[moles=\frac{ mass }{ MolarMass }\]
note that mass is taken in grams
\[1.5=\frac{ mass }{ 40}\]\[60grams=mass\]