What is the molarity of a solution when 3L of a 4M solution is mixed with 3L of a 6M solution?
moles of 1 = M x L
moles of 2 = M x L
Final M = total moles/total liters.
thank you very much
To find the molarity of the resulting solution when two solutions are mixed, you need to consider the total moles of solute and the total volume of the mixture.
First, calculate the moles of solute in each solution by using the formula:
moles = molarity × volume
For the 4M solution:
moles of solute in the 4M solution = 4 M × 3 L = 12 moles
For the 6M solution:
moles of solute in the 6M solution = 6 M × 3 L = 18 moles
Next, add the moles of solute from both solutions to find the total moles of solute:
total moles of solute = moles of solute in the 4M solution + moles of solute in the 6M solution
= 12 moles + 18 moles
= 30 moles
Now, calculate the total volume of the mixture:
total volume of the mixture = volume of the 4M solution + volume of the 6M solution
= 3 L + 3 L
= 6 L
Finally, calculate the molarity of the resulting solution by using the formula:
molarity = total moles of solute ÷ total volume of the mixture
molarity = 30 moles ÷ 6 L
= 5 M
Therefore, the molarity of the resulting solution is 5M.