Solving pH Questions for Anatomy & Physiology I Student

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I'm a first year student Anatomy & Physiology and this really got to. I have been in Chemistry for about two weeks now and really need some help with this one.
Questions is: Which of these is the pH of an acid solution?

A. pH 7.1
B. pH 7.0
C. pH 12.4
D. pH 6.9
E. pH 8.3


No Relevant equations


The attempt at a solution was to guest after reading about chemical bonding, Elements and compounds, but when I got to pH it was a whole new subject, with the K+ CI-KCI I have know idea. Please help me.
 
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You are on the Calculus forum, but in answer to your question acidic solutions have a pH of < 7.
 
Take a look at this wikipedia article, particularly the section titled Applications: http://en.wikipedia.org/wiki/PH.
Freshly distilled water, which is neither acid nor alkiline, has a pH of 7.0. You should notice that one of your five choices is unlike the others, and is therefore the one you want.
 
Thank you, Mark so if I have any pH questions I can go to wikipedia.org
 
MathHawk said:
You are on the Calculus forum, but in answer to your question acidic solutions have a pH of < 7.

Thank you so much I was going crazy for a little.
 
Mark44 said:
Take a look at this wikipedia article, particularly the section titled Applications: http://en.wikipedia.org/wiki/PH.
Freshly distilled water, which is neither acid nor alkiline, has a pH of 7.0. You should notice that one of your five choices is unlike the others, and is therefore the one you want



Re: Anatomy & Physiology

Thank you, Mark so if I have any pH questions I can go to wikipedia.org
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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