• How much soda to raise the pH?

  • Eric

I encountered a question about raising the pH with baking soda. There are 100 liters of water with a pH of 8, and there is solution A, 1 liter with a pH of 200. I need to raise the pH in 100 liters of water by 1 unit; how much of solution A should I add to the 100 liters? It's a bit of a puzzle. The answer below includes information I found. According to this formula, one gram of sodium bicarbonate raises the pH in 100 liters of water by 0.34, or 2.94 grams for 1 degree. Returning to our problem and the first link, 6 grams raises the pH from 0 to 200 in 1 liter, which means it will raise it by 2 in 100 liters, or by 1 with 3 grams, which matches the calculations above from the second link. Now, how much of the pH 200 solution is needed to raise it by 1 degree? Half a liter. It seems like a simple problem, but it will save time for a beginner. There are figures in grams and liters. Naturally, it's better to make a more concentrated solution and add it in smaller amounts, like 50-100 ml instead of half a liter.

Darlene4238

0.5 liters of solution with kN 200 or 3 grams of baking soda. And to avoid struggling with the calculations of the other indicators.