Question

80.0 grams of NaOH is dissolved in water to make a 6.00 L

Answer 1

The answer for the following problem is mentioned below.

• Therefore the molarity of the solution is 3 × $10^{-4}$ M.

Explanation:

Given:

mass of sodium hydroxide solution (NaOH) = 80.0 grams

Gram molecular mass of sodium hydroxide solution (NaOH) = 40.0 gram/mole

volume of the solution (v) = 6.00 L = 6000 ml

To find:

molarity of the solution (m)

We know,

m = $\frac{n}{v}$

where,

m represents the molarity of the solution

n represents the no of moles

v represents the volume of the solution

we also know;

n = $\frac{m}{M}$

where,

m represents the mass of the sodium hydroxide

M represents the Gram molar mass of the solution

So,

n = $\frac{80}{40}$

n = 2

So,

m =  $\frac{2}{6000}$

m = 3 × $10^{-4}$ M

Therefore the molarity of the solution is 3 × $10^{-4}$ M.

Answer 2

Answer: 0.33

Explanation: guessed it