An aqueous solution of HCl has a concentration of .160m and a density of 1.0691 g/mL. What is the concentration of HCl as molarity?
To find the concentration of HCl in molarity, we need to use the given information about the solution's density and concentration.
The formula to calculate molarity is:
Molarity (M) = moles of solute / volume of solution in liters
First, we need to find the moles of HCl. We can do this by multiplying the concentration (in moles per liter) by the volume of the solution (in liters).
Given:
Concentration = 0.160 M
Density = 1.0691 g/mL
To calculate the volume of the solution in liters, we need to convert the density from grams per milliliter to grams per liter.
Density = mass / volume
Rearranging the formula to solve for volume, we have:
Volume = mass / density
Since we know the density and assume a volume of 1 liter, we can calculate the mass of the solution in grams.
Mass = density * volume
Next, we can calculate the moles of HCl using the mass and the molar mass of HCl.
Molar mass of HCl = 36.46 g/mol
Moles = mass / molar mass
Finally, we can substitute the moles and the volume of the solution in liters into the molarity formula to find the concentration in molarity.
Molarity (M) = moles of solute / volume of solution in liters
By following these calculations, you will determine the concentration of HCl in molarity.