A solution containing a mixture of lactic acid and lactate was found to have a pH of 4.34. Calculate the ratio of the lactate concentration to the lactic acid concentration in this solution.

3.02

Explanation:

Step 1: Given and required acid

pH of the solution: 4.34

pKa of lactic acid: 3.86

Step 2: Calculate the ratio of the lactate concentration to the lactic acid concentration in this solution

We have a buffer system formed by a weak acid (lactic acid) and its conjugate base (lactate ion). We can find the ratio of the lactate concentration to the lactic acid concentration in this solution using the Henderson-Hasselbach equation.

pH = pKa + log [lactate]/[lactic acid]

4.34 = 3.86 + log [lactate]/[lactic acid]

[lactate]/[lactic acid] = 3.02

it is a good conductor

explanation:

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.