How many moles of NaOH are in 125mL of a 4.00M solution of NaOH?

mols = M x L = ?

To find the number of moles of NaOH in a solution, you can use the formula:

moles = concentration (M) × volume (L)

First, convert the given volume from milliliters to liters:

125 mL = 125/1000 = 0.125 L

Next, you can use the formula to calculate the number of moles of NaOH:

moles = 4.00 M × 0.125 L
moles = 0.5

Therefore, there are 0.5 moles of NaOH in 125 mL of a 4.00 M solution.

To calculate the number of moles of NaOH in a given solution, you can use the formula:

moles = concentration (in moles/L) x volume (in liters)

In this case, the concentration of NaOH is given as 4.00M (moles/L) and the volume is given as 125mL. However, to use the formula, we need to convert the volume from milliliters to liters.

There are 1000 milliliters in a liter, so:

volume (in liters) = 125mL / 1000 = 0.125L

Now we can substitute the values into the formula:

moles = 4.00M x 0.125L

Calculating the expression:

moles = 0.5 moles

Therefore, there are 0.5 moles of NaOH in 125mL of a 4.00M solution of NaOH.