What is the concentration, in units of molarity, of a 350 mL solution containing 0.298 moles of sodium chloride in water?
M = moles/L soln. Substitute and solve for M.
6.09
To calculate the concentration in units of molarity (M) of a solution, you need to know the amount of solute (in moles) and the volume of the solution (in liters). The formula for molarity is:
Molarity (M) = Moles of solute / Volume of solution (in liters)
In this case, you have 0.298 moles of sodium chloride and a solution with a volume of 350 mL. However, the formula requires the volume to be in liters, so you need to convert the volume from milliliters to liters.
To convert milliliters to liters, divide the volume by 1000:
Volume (in liters) = 350 mL / 1000 = 0.35 L
Now, you can plug in the values into the formula:
Molarity (M) = 0.298 moles / 0.35 L
Calculating this expression will give you the concentration of the solution in units of molarity.