Question

What is the number of moles of NaOH in 26.5 mL of 0.500 Molar NaOH?

Answer 1

0,5 M means that there are 0,5 moles of NaOH in 1 000 mL of solution:


`26,5\ mL\cdot (0,5\ mol)/(1\ 000\ mL) = \bf 1,32\cdot 10^(-2)\ mol`

Answer 2

Volume = 26.5 mL / 1000 => 0.0265 L

Molarity = 0.500 M

n = M x V

n = 0.500 x 0.0265

n = 0.01325 moles

hope this helps!