Compare the solubility of mn(oh)2 (ksp = 1.6x10-13)in the following solutions: pure water, a solution buffered to be ph = 6.5 a solution buffered to be ph = 3.5 compare the solubility of mn(oh)2 (ksp = 1.6x10-13)in the following solutions: pure water, a solution buffered to be ph = 6.5 a solution buffered to be ph = 3.5 pure water > ph 3.5 > ph 6.5 (least soluble) ph 3.5 > ph 6.5 > pure water (least soluble) ph 3.5 > pure water > ph 6.5 (least soluble) pure water > ph 6.5 > ph 3.5 (least soluble) ph 6.5 > ph 3.5 > pure water (least soluble)

The order will be:

pH 3.5 > pH 6.5 > pH 7

Explanation:

The solubility equation for Mn(OH)₂ is:

As per the reaction, Mn(OH)₂ is giving hydroxide ions

The given conditions are

a) Pure water = here the pH of water is 7.

[OH⁻] = 10⁻⁷ M

b) pH = 6.5

pOH = 7.5

[OH⁻] = 3.16 X 10⁻⁸ M

c) pH = 3.5

pOH = 10.5

[OH⁻] =3.16 X  10⁻¹¹ M

Thus from the three solutions and water the maximum concentration of hdyroxide ion is in pure water, hence the Mn(OH)₂ will be least soluble in it.

More the concentration of hydroxide, lesser the solubility of Mn(OH)₂

Order will be

pH 3.5 > pH 6.5 > pH 7

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.