Question

8 gm NaOH dissove in 250 ml solution. This solution is diluted by using 500 ml water. Find the molarity in dilute solution. Also find moles of NaOH?

Answer 1

$\huge\boxed{ \mathbb\red{❥A} \green{n} \mathbb\blue{S} \purple{w} \mathbb \orange{E} \pink{r}} \:</p><p>$

▪️Eventually you have 8g NaOH dissolved in 250mL + 500mL = 750mL solution . Which is 0.75L solution

▪️Molar mass NaOH = 40g/mol

▪️Mol NaOH in 8g = 8g/40g/mol = 0.2 mol NaOH in 0.75L solution

▪️Molarity = 0.2mol / 0.75 L = 0.27M

Hopes it help you✌️✌️

Answer 2

Answer:

▪️Eventually you have 8g NaOH dissolved in 250mL + 500mL = 750mL solution . Which is 0.75L solution

▪️Molar mass NaOH = 40g/mol

▪️Mol NaOH in 8g = 8g/40g/mol = 0.2 mol NaOH in 0.75L solution

▪️Molarity = 0.2mol / 0.75 L = 0.27M