(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Calculate pH of the 1,96% solution of H3PO4 (ρ≈1 g/cm^3). Take in account only the first constant of dissociation (7,5 * 10^-3 mol/cubic dm). The reduction of the concentration of H3PO4 because of dissociation can be ignored.

% = 1,96%

ρ (H3PO4) ≈1 g/cm^3

K = 7,5 * 10^-3 mol/cubic dm

2. Relevant equations

No equations in this task.

3. The attempt at a solution

Couldn't even attempt to solve it, because I don't know how to put the information together.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Calculating pH of the 1,96 % H3PO4 solution

**Physics Forums | Science Articles, Homework Help, Discussion**