SOLUTION: Hello, Can someone please help me with this question? What is the mathematical difference between a pH of 5.0 and a pH of roughly 4.0

SOLUTION: Hello, Can someone please help me with this question? What is the mathematical difference between a pH of 5.0 and a pH of roughly 4.0 - is it really that big of a difference?

Question 258174: Hello,
Can someone please help me with this question?
What is the mathematical difference between a pH of 5.0 and a pH of roughly 4.0 - is it really that big of a difference?
Thank you for your help
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
The pH scale is logarithmic and as a result, each whole pH value below 7 is ten times more acidic than the next higher value. For example, pH 4 is ten times more acidic than pH 5 and 100 times (10 times 10) more acidic than pH 6.
--
The concentrations of hydrogen ions and indirectly hydroxide ions are given by a pH number. pH is defined as the negative logarithm of the hydrogen ion concentration. The equation is:
pH = - log [H+]
--
Example: If an acid has an H+ concentration of 0.0001 M, find the pH.
Solution:
First convert the number to exponential notation, find the log, then solve the pH equation.
H+ = 0.0001M = 10-4; log of 10-4 = -4;
pH = - log [ H+] = - log (10-4) = - (-4) = +4 = pH
The purpose of the negative sign in the log definition is to give a
positive pH value.
--
The PH of coffee = 5
The PH of orange juice = 4
RELATED QUESTIONS
Hello, Can someone please help me with this question? What is the mathematical... (answered by richwmiller)

Please help me solve this problem: The pH of a solution is given by pH = -log(H+),... (answered by josgarithmetic)

Can somebody help me with this problem? The directions is find the hydrogen ion... (answered by KMST)

Can someone please show me step by step on how to do this problem? The directions are... (answered by josgarithmetic)

Please help me with this problem. I thought I had the right answer but it was wrong.... (answered by stanbon)

The pH scale is a measure of acidity, which is related to the concentration of hydrogen... (answered by stanbon)

Thanks Stanbon for answering but I was wondering if I could get different worded answers... (answered by stanbon)

Can somebody help me with this word problem? The word problem is: In chemistry, the pH of (answered by KMST)

I don't understand this question at all, would appreciate an answer on this please!!... (answered by ikleyn)