What is molarity of a solution containing 10 g of NaOH in 500 mL of NaOH solution?

Molar mass NaOH = 40 g/mol#

1 Answer
Mar 13, 2018

Answer:

#"0.5 molar"#

Explanation:

Molarity is a concentration term in which the no. of moles and the volume are related.

#"Molarity" \ (c) = ("no. of moles" \ (n))/("volume in L" \ (V))#

Here

#n = "10 g"/"40 g/mol"#

#V = "500 mL"= "0.5 L"#

So

#c=n/V#

# = "10 g"/("40 g/mol" \ xx \ "0.5 L")#

# = "10 mol"/"20 L" = "0.5 molar"#