Question

1. What are the pH values of soils which have the following [H+]____?

0.0000094 mol L^-1, 0.000004 mol/L^-1, 0.000000000001 mol/L^-1

2. CaMg(CO3)2 that is 92% pure and 88% passes a 8-mesh screen and 61% passes a 60-mesh screen.

3. Mg(CO)3 that is 59% pure and 93% passes a 8-mesh screen and 77% passes a 60-mesh screen.

4. Under what circumstances would you want to decrease soil pH? what amendments could be used to decrease soil pH?

Answer 1