What is the concentration (in m) of a 225ml potassium sulfate solution that contains 4.15g of potassium?

The concentration of solution in M or mol/L can be calculated using the following formula:

.... (1)

Here, n is number of moles and V is volume of solution in L.

The molecular formula of potassium sulfate is thus, there are 2 moles of potassium in 1 mol of potassium sulfate.

1 mol of potassium will be there in 0.5 mol of potassium sulfate.

Mass of potassium is 4.15 g, molar mass is 39.1 g/mol.

Number of moles can be calculated as follows:

Here, m is mass and M is molar mass

Putting the values,

Thus, number of moles of   will be .

The volume of solution is 225 mL, converting this into L,

Thus,

Putting the values in equation (1),

Therefore, concentration of potassium sulfate solution is 0.236 M.

the link still does not work even when adding it to the url bar

explanation: