Which base is the strongest for the given [h+]? 10-9 10-11 10-10 10-12

[H⁺] =  10⁻¹²

It could be the strongest base.

Explanation:

The base is considered to be of highest strength if it has least hydrogen ion concentration or high hydroxide ion concentration.

Generally a stronger base gives more hydroxide ion concentration.

the relation between hydrogen ion and hydroxide ion concentration is

[H⁺][OH⁻]= 10⁻¹⁴

[OH⁻] = 10⁻¹⁴  /  [H⁺]

a) [H⁺] =  10⁻⁹

[OH-] = 10⁻⁵

b) [H⁺] =  10⁻¹¹

[OH-] = 10⁻³

c) [H⁺] =  10⁻¹⁰

[OH-] = 10⁻⁴

d) [H⁺] =  10⁻¹²

[OH-] = 10⁻²

This the highest concentration of hydroxide ion in the given choices so it could be the strongest base.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

b. examine and describe cells