110k views
5 votes
Lemon juice has a ph of about 2.0, compared to a ph of about 1.0 for stomach acid. therefore, the concentration of h+ in stomach acid is __________ than that of lemon juice.

2 Answers

5 votes
Since the pH is a logarithmic scale each increase and or decrease in H+ concentration, changes the pH by 10 fold or 10x the amount. In this case stomach acid is 10x more acidic than lemon juice.
User Zdebruine
by
8.0k points
4 votes

Answer:

The concentration of h+ in stomach acid is times more than that of lemon juice.

Step-by-step explanation:

Basically, pH is a value that rates how acidic or alkaline a solution is on a scale from 0–14. A pH of 7 is considered neutral. Any pH value below 7 is considered acidic and any pH value over 7 is considered alkaline. Acidic solutions have a lower pH, while basic solutions have a higher pH.

On the pH scale, the difference between adjacent numbers represents a tenfold difference in acidity. For instance, a pH of 4 is 10 times more acidic than a pH of 5 and 100 times more acidic than a pH of 6.

Since the lemon juice has a pH of about 2.0 compared to stomach acid with a pH of about 1.0 It means that the the stomach acid is 10 times more acidic than the lemon juice.

pH = -log10[H+]

[H+] = 10^-pH

In Lemon juice;

[H+] = 10^-pH = 10^-2 = 0.01

In stomach acid;

[H+] = 10^-pH = 10^-1 = 0.1

0.1 is 10 times more than 0.01.

User Jarvan Zhang
by
7.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.