Asked by Ruth

how many grams of potassium hydroxide would need to be added to 400 mL of 0.150M HNO3 to raise its pH to 2.5

Answers

Answered by DrBob222
HNO3 + KOH ==> KNO3 + H2O

mols HNO3 = M x L = 0.06
pH = 2.5 means you want (H^+) to be 0.00316 or mols (H^+) = 0.00316 x 0.4L = 0.00126. That's mols (H^+) remaining which means you must neutralize the difference; i.e., 0.06 - 0.00126 = ?
Convert that to grams KOH.
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions