A 150mL sample of 0.45 M HNO3 is diluted to 450 mL. What is the molarity of the resulting solution?
0.15
To find the molarity of the resulting solution, you need to use the concept of dilution. Dilution involves adding a solvent, typically water, to a solution in order to decrease its concentration.
In this case, you have a 150 mL sample of 0.45 M HNO3 that is diluted to a final volume of 450 mL.
To determine the molarity of the resulting solution, you can use the formula:
M1 x V1 = M2 x V2
Where:
M1 = initial molarity of the solution (0.45 M)
V1 = initial volume of the solution (150 mL)
M2 = final molarity of the solution (unknown)
V2 = final volume of the solution (450 mL)
Rearranging the formula, we have:
M2 = (M1 x V1) / V2
Substituting the given values, we get:
M2 = (0.45 M x 150 mL) / 450 mL
M2 = 0.15 M
Therefore, the molarity of the resulting solution is 0.15 M.