What is the pH of these common house-hold products?

Question

And what is the easiest way to remember them or things like them for a test situation?

1) lemon juice
2) drano / liquid plumber
3) de-ionized water
4) de-ionized water with CO2 bubbled through it
5) dr. pepper
6) calcium oxide
7) hydrocloric acid
8) NaCl dissolved in de-ionized water

Answer 1

1) lemon juice = 2.4 to 2.5
2) drano / liquid plumber
solid drano is mostly lye; pH in water = 13.5
3) de-ionized water (fresh) = 7.0
(standing) = 5.5 to 6.5
4) de-ionized water with CO2 bubbled through it = 5 to 6.5
5) dr. pepper = 2.5 to 3.5 (higher when flat)
6) calcium oxide (as lime water) = 12.5 to 13
7) hydrocloric acid (as gastric acid) = 1.4 to 1.5
(as cleaner for bricks) = 1.0 to 1.5
8) NaCl dissolved in de-ionized water = 7.0 (but can be between 6.5 to 7).

Answer 2

i will try to answer.
the acids have the PH from 0 to 6.9 and the base from 7.1 to 14.
0 is the most acid environment and 14 is the most base environment, 7 is neutral

1.lemon juice is acid because have citric acid in it. it's PH is 4.
2.
3. de-ionized water is 7 neutral.
4. water with co2 is acid and is 4.
5. ???
6. is a base in a kind of way.
7. acid depends
8. neutral 7

Answer 3

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