Tính số ml H3PO4 85% (d = 1,69 g / ml) phải lấy để hòa tan vào nước và pha thành 500 ml thì pH = 3. Biết axit H3PO4 có pKal = 2,15; pKaz = 7,31; pKa3 = 12,32.

What does x represent in the formula for the compound xcl4?

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0