Question

convert 25 grams of naoh to moles. show your work!
molar mass naoh = 40 g/mol

Explanation:

Step1: Recall the formula for moles

The formula to calculate moles is $n = \frac{m}{M}$, where $n$ is the number of moles, $m$ is the mass in grams, and $M$ is the molar mass in g/mol.

Step2: Identify the given values

We are given that $m = 25$ g (mass of NaOH) and $M = 40$ g/mol (molar mass of NaOH).

Step3: Substitute the values into the formula

Substitute $m = 25$ g and $M = 40$ g/mol into the formula $n = \frac{m}{M}$. So, $n=\frac{25\ \text{g}}{40\ \text{g/mol}}$.

Step4: Calculate the result

Simplify the fraction $\frac{25}{40}=0.625$.

Answer:

The number of moles of NaOH is $0.625$ moles.