Question

2.46g of sodium hydroxide is dissolved in water and the solution is made to 100cm³ in volumetric flask. calculate the molarity​

Answer 1

molarity of the given solution using moles of naoh is 0.615M

Answer 2

Molarity of solution is 0.62 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n\times 1000}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in  ml = $100cm^3=100ml$   $1cm63=1ml$

moles of solute =$\frac{\text {given mass}}{\text {molar mass}}=\frac{2.46g}{40g/mol}=0.062moles$

Now put all the given values in the formula of molarity, we get

$Molality=\frac{0.062\times 1000}{100ml}=0.62mole/L$

Therefore, the molarity of solution is 0.62 M

Learn more about molarity

https://brainly.com/question/11331205

https://brainly.com/question/4181886