calculate the molarity of a solution containing 4.50mmol of NaCl in 3.80mL of solution

M = moles/L = mmoles/mL.

can someone expllain to me step by step please

Can you divide mmole by mL? If so

mmole/mL = M.

To calculate the molarity of a solution, we need to use the formula:

Molarity (M) = moles of solute / volume of solution (in liters)

First, we need to convert the millimoles of NaCl to moles. Since 1 mole = 1000 millimoles, we divide 4.50 mmol by 1000 to get:

4.50 mmol / 1000 = 0.0045 moles

Next, we need to convert the milliliters of solution to liters. Since 1 liter = 1000 milliliters, we divide 3.80 mL by 1000 to get:

3.80 mL / 1000 = 0.0038 liters

Finally, we can substitute these values into the molarity formula:

Molarity (M) = 0.0045 moles / 0.0038 liters

Molarity (M) = 1.18 M

Therefore, the molarity of the solution containing 4.50 mmol of NaCl in 3.80 mL of solution is 1.18 M.