Given two solutions 0.10m hcl and 0.10 hf, which solution has the greater concentration of h+ ions? calculate ph values for the two solutions given that [h+] = 7.9 x 10-3m in the 0.10m hf

1) HCl has the greater concentration of H⁺ ions than HF.

2) pH of HCl = 1.

pH of HF = 2.1.

Explanation:

1) which solution has the greater concentration of H+ ions?

HCl is completely ionized in the solution to produce H⁺ and Cl⁻.

∴ 0.1 M HCl has H⁺ concentration of (0.1 M).

0.1 M of HF has H⁺ concentration of (7.9 x 10⁻³ M).

∴ HCl has the greater concentration of H⁺ ions than HF.

2) Calculate pH values for the two solutions:

∵ pH = - log[H⁺]

[H⁺] = 0.1 M.

∵ pH = - log[H⁺]

∴ pH = - log[H⁺] = - log(0.1 M) = 1.

[H⁺] = 7.9 x 10⁻³ M.

∵ pH = - log[H⁺]

∴ pH = - log[H⁺] = - log(7.9 x 10⁻³ M) = 2.1.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

50.23 i believe is correct but don't quote me on that.