How many milliliters of 5.50 M HCl must be diluted to make 350. mL of a 0.500 M solution?

Here is one form of the dilution equation.

mL1 x M1 = mL2 x M2
?mL1 x 5.50M = 350.0 x 0.500M
?mL1 = ?

31.81

To find out how many milliliters of 5.50 M HCl must be diluted to make 350 mL of a 0.500 M solution, we can use the concept of dilution.

Dilution is a process of adding solvent (usually water) to a concentrated solution to decrease its concentration.

The formula for dilution is:

M1V1 = M2V2

Where:
M1 = initial concentration of the solution (in this case, 5.50 M HCl)
V1 = initial volume of the solution to be diluted (what we're trying to find)
M2 = final concentration of the diluted solution (0.500 M solution)
V2 = final volume of the diluted solution (350 mL)

Now, let's plug in the known values into the formula and solve for V1:

5.50 M (V1) = 0.500 M (350 mL)

V1 = (0.500 M * 350 mL) / 5.50 M

Calculating this equation will give us the value of V1, which is the initial volume of the 5.50 M HCl solution that needs to be diluted.