Calculate the number of moles in 25cm of 0.2M of. Sodium hydroxide

Answer 1

To calculate the number of moles in a given volume of solution, we first need to convert the volume from cm³ to liters.

25 cm³ = 25/1000 = 0.025 liters

The molarity (M) of the solution is given as 0.2M, which means there are 0.2 moles of sodium hydroxide in 1 liter of solution.

Therefore, the number of moles in 0.025 liters (25 cm³) of the solution is:

0.2 moles/liter * 0.025 liters = 0.005 moles

So, there are 0.005 moles of sodium hydroxide in 25 cm³ of 0.2M sodium hydroxide solution.