Answer to Question #119977 in General Chemistry for Cass

Question

6. And finally someone who just heard acid, decides to use H2SO4 (since it’s the only one they can remember. So, they put 5.0g in 1.0 liters of solution. What pH do you now expet? (Remember that sulfuric acid only loses 1 H+, so it’s concentration is the value of H3O+.)

Answer 1

Normality of 1L solution with 5g of H₂SO₄:

N= m(H2SO4)*2/Mr(H2SO4)= 5*2/98=0.1 N

pH=-lg(0.1)=1;

Answer: The ph of the solution is 1.