Answer:To make a 0.65 M HCl solution by diluting 150 mL of a 9.75 M HCl solution, you would need to add 1800 mLof water or solvent to achieve the desired concentration.
Step-by-step explanation:
To determine the volume of a diluted hydrochloric acid (HCl) solution, you can use the concept of dilution. The formula for dilution is:
M1V1 = M2V2
Where:
M1 = Initial concentration
V1 = Initial volume
M2 = Final concentration
V2 = Final volume
In this case, the initial concentration (M1) is 9.75 M, the initial volume (V1) is 150 mL, and the final concentration (M2) is 0.65 M.
Let's calculate the final volume (V2):
M1V1 = M2V2
(9.75 M)(150 mL) = (0.65 M)(V2)
V2 = (9.75 M)(150 mL) / (0.65 M)
V2 =1800 mL