Question

Calculate the molarity of each aqueous solution with the given amount of KCI (molar mass 74.54 g/mol and final volume, Round each of your answers to 3 significant figures.

1,70 mol KCl in 770, ml. solution

Answer 1

The molarity of a solution with 1.70 mol of KCl in 0.770 L of solution is 2.21 M, when rounded to three significant figures.

Step-by-step explanation:

To calculate the molarity of a solution, you need to divide the number of moles of solute by the volume of solution in liters. The given problem asks to find the molarity of a solution with 1.70 mol of KCl in a 0.770 L (770 mL) solution.

The formula for molarity (M) is:

M = moles of solute / liters of solution

So, plug in the given values:

M = 1.70 mol / 0.770 L

When you calculate this, the molarity of the solution is:

M = 2.21 M

Therefore, the molarity of the KCl solution is 2.21 M, rounded to three significant figures.