How many grams of potassium phosphate would be needed to make 25.0ml of a 0.75m solution?

Answer : The mass of potassium phosphate needed will be 3.98 grams.

Explanation : Given,

Molarity of potassium phosphate = 0.75 M = 0.75 mole/L

Molar mass of potassium phosphate = 212.27 g/mole

Volume of solution = 25.0 mL = 0.025 L    (conversion used : 1 L = 1000 mL)

Molarity : It is defined as the number of moles of solute present in one liter of solution.

In this problem solute is, potassium phosphate.

Formula used :

Now put all the given values in this formula, we get:

Therefore, the mass of potassium phosphate needed will be 3.98 grams.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.