Answer: The mass of sodium hydroxide is 10 grams.
Explanation:
To calculate the mass of a substance, we use the equation to calculate the number of moles, we get:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
We are given:
Moles of sodium hydroxide = 0.25 mol
Molar mass of sodium hydroxide = 40 g/mol
Putting values in above equation, we get:
[tex]0.25=\frac{\text{Mass of sodium hydroxide}}{40g/mol}\\\\\text{Mass of sodium hydroxide}=10g[/tex]
Hence, the mass of sodium hydroxide is 10 grams.
