Question

How many grams of NaOH is required to make 2 moles of it, if the molecular mass of NaOH is 40 dalton?​

Answer 1

DIY

just a hint

M=n/m

where M is the molar mass

n is the mass of the substance

and m is moles of the substance.

Answer 2

Answer:

80 g is required to make 2 moles of $NaOH$.

Explanation:

To calculate the mass of $NaOH$, we have to use the mole formula, that is-

$Moles = \frac{Mass}{Molar Mass}$

The moles of $NaOH$ present- 2 mol

The molecular mass of $NaOH$- 40 dalton = 40 g/mol

We substitute these values in the formula.

$2 = \frac{x}{40}$

$80 = x$

The mass of $NaOH$ is 80 g.

Conclusion:

We need 80 g of $NaOH$ to obtain 2 moles of it.