What was the molarity of K2CrO4? M = moles/liter
To determine the molarity (M) of K2CrO4, we need to have information about the number of moles of K2CrO4 and the volume it is dissolved in.
The molarity is calculated by dividing the number of moles of solute by the volume of solution in liters. The formula for molarity is:
Molarity (M) = moles of solute / volume of solution (in liters)
To find the molarity of K2CrO4, you need to know the moles of K2CrO4 and the volume of the solution in liters.
If you have the mass of K2CrO4, you can first convert the mass to moles using the molar mass of K2CrO4. The molar mass of K2CrO4 is calculated by adding the atomic masses of potassium (K), chromium (Cr), and oxygen (O) from the periodic table.
Once you have the moles of K2CrO4, divide it by the volume of the solution in liters to get the molarity.
Remember to always use the appropriate units and convert them if necessary.