How do I find the molarity of NaCl for different dilutions?
You calculate the number of moles per liter of solution.
To find the molarity of NaCl for different dilutions, you need to calculate the number of moles of NaCl present in a given volume of solution. You can use the formula:
Molarity (M) = moles of solute / volume of solution (in liters)
Here are the steps to determine the molarity of NaCl for different dilutions:
1. Determine the number of moles of NaCl:
To do this, you need to know the mass of NaCl present in the solution. The formula is:
Moles (n) = mass of solute (in grams) / molar mass of NaCl
The molar mass of NaCl is 58.44 grams/mol.
So, if you have the mass of NaCl, divide it by 58.44 to get the number of moles.
2. Determine the volume of the solution:
You should measure the volume of the solution in liters. Make sure to convert milliliters (mL) to liters (L) by dividing by 1000.
3. Calculate the molarity:
Using the formula mentioned earlier, divide the number of moles (from step 1) by the volume of the solution (from step 2).
Molarity (M) = moles of NaCl / volume of solution (in liters)
Repeat these steps for each different dilution of NaCl to find their respective molarities.