If 20 ml of water is added to a solution of ethanoic acid with a ph of 3, how will the solution change?

Explanation:

The pH of a solution is the logarithm of the inverse of the concentration (molarity) of the hydrodium ions ( [H₃O⁺]):

When 20 ml of water is added to a solution of ethanoic acid with a pH of 3, the amount of hydronium ions is the same but the volume of solution is increased, meaning that the new concentration of hydronium ions is lower.

You can see that mathematically using the formula for molarity:

After adding water ,the numerator of the formula remain unchanged while the denominator increases, so the new molarity is lower.

Now, since [H₃O⁺] is lower, its inverse, 1/[H₃O⁺] will be higher, and the logarithm, log 1/[H₃O⁺] will be higher.

Thus, you have concluded that the pH will be higher.

As per definition, a higher pH means less acidic (for instance, pH = 1 is highly acid and pH = 7 is neutral).

Then, the conclusion is that if 20 ml of water is added to a soluction of ethanoic acid with a pH of 3, the solution will be less concentrated, the pH will be higher, and the solution will be less acidic.

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.