Can you show me the formula I need to do this problem. please
a solution is made by dissolving 0.35 mole of LiI in enough water to give a final volume of 2.60 ml. What is the molarity of the solution?
thank you
mols LiI = grams/molar mass.
Substitute and solve for mols.
Then M = mols/L solution. You know mols and L (after converting from mL), solve for M.
To find the molarity of a solution, you need to use the formula:
Molarity (M) = moles of solute / volume of solution (in liters)
In this case, you are given the moles of solute (0.35 mole) and the volume of solution (2.60 ml). However, the volume of solution needs to be in liters to match the units of the molarity.
To convert milliliters to liters, you need to divide the volume by 1000 since there are 1000 milliliters in a liter:
Volume (in liters) = 2.60 ml / 1000 = 0.00260 L
Now, you can substitute the values into the formula:
Molarity (M) = 0.35 mole / 0.00260 L
Calculating this expression will give you the molarity of the solution.