If 200 mg of hcl is added to water to achieve a final volume of 1l, what is the final ph?

The pH of the solution is 2.26 .

Explanation:

Mass of HCl = 200 mg = 0.200 g

1 mg = 0.001 g

Moles of HCl =

Volume of the solution ,V= 1 L

Molarity of HCl solution =

1 mole of HCk gives 1 mole of hydrogen ion and 1 mole of chloride ions.

The pH of the solution is negative logarithm of hydrogen ion concentration:

The pH of the solution is 2.26 .

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

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