Find the pH of lemon juice. Using the pH, show how to find the hydrogen ion content by using the logarithmic formula. Round to 10 decimal places.can you please help?
2007-08-15 09:01:54 · 7 answers · asked by pp1976 1 in Science & Mathematics ➔ Chemistry
it's acidic.
and you need some darn expensive equipment to find the pH to 10 decimal places.
2007-08-15 09:09:18 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Ph Of Lemon Juice
2016-10-06 02:47:56 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Lemon juice is essentially a 5% solution of citric acid in water. It has a pH of 2.3. This makes it acid, because it has a pH below 7.
pH = -log[H+] = 2.3
Log[H+] = -2.3 = -3 + 0.7
Antilog -3 = 10^-3; Antilog 0.7 = 5.011872336
[H+] = 5.011872338 x 10^-3
Why you wanted 10 decimal places I can't imagine, but there they are.
2007-08-15 09:17:30 · answer #3 · answered by steve_geo1 7 · 6⤊ 0⤋
According to this web site the pH of lemon juice is 2.3
pH= -LOG [H+] so [H+]= 10^-pH
I get .0050118723
To be honest seems weird to take this to 10 sig figs when the best pH meters are accurate to 2 decimal places.
2007-08-15 09:19:20 · answer #4 · answered by cvtman2003 2 · 0⤊ 0⤋
I have forgotten how to calculate the H+ content but it is definitely acidic because it has a pH below 7.
2007-08-15 09:10:28 · answer #5 · answered by Sam 6 · 0⤊ 0⤋
Ans: Less than 7
2013-11-28 16:38:25 · answer #6 · answered by Roger 3 · 0⤊ 0⤋
Literally looks like you put your science homework into yahoo.
2015-03-04 02:01:57 · answer #7 · answered by Brendan 1 · 0⤊ 0⤋