Question

1. [a]An aqueous solution has a pH of 4.0. (i) What is the hydrogen ion concentration of the solution? (ii) What effect will the solution in [ai] above have on a litmus paper? 1. [b](i) Which of the following salt solutions below would have the same effect on litmus paper as in (1[ai])? Give a reason for your answer. NH4Cl (aq); NaCl(aq); CH3OONa(aq) 1. b(ii) Define a Buffer Solution (iii) Give two examples acid anhydrides

Answer 1

Answer:

ii is 100% correct

Explanation:

please mark me brainliest.

Answer 2

Answer:

Prove that 0.85×0.85×0.85+0.15×0.15×0.15 divided by 0.85×0.85-0.85×0.15+0.15×0.15

Question number 37 of RS Aggarwal class 9 factorisation of polynomials.

Explanation:

NH4Cl