pH scale...pH of <7 is considered acidic, >7 is considered alkaline. 7 is neutral like water.
The pH scale is a measure of acidity or alkalinity of a solution, ranging from 0 to 14. A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline. The scale is logarithmic, meaning each whole number change represents a tenfold change in acidity or alkalinity.
A ph scale
On the pH scale. The pH scale goes from 1 to 14, 1 being very acidic, 7 being neutral and 14 being very alkaline (basic). The pH scale is (loosely speaking) a measure of the concentration of free-floating hydrogen ions in a solution.
Litmus paper only shows if a substance is acid or alkali. It will turn red if its cid, or blue if its alkali. It doesn't show how acidic or alkaline it is (ie, the pH). This is what universal indicator shows.
The pH scale shows the relative acidity (H+ ions) and basicity (OH- ions) of a sample. A pH of <7.0 is acidic; a 7.0 pH is neutral and, one with a pH >7.0 is basic.
If the pH scale shows a colour between red and light green, then it is acidic. When the colour is light green, then it is neutral. When it shows colour between light green and dark blue, then it is basic. For numerical values:- 0-7:- Acidic 7:- Neutral 7-14:- basic
Milk of magnesia is a basic solution. Therefore, methyl orange shows a yellowish orange colour. Further, this indicator shows a red colour in acidic solutions.
Fahrenheit temperature scale shows water freezing at 32 degrees.
Foods such as orange juice and lemon juice are acidic in their natural state but turn alkaline after they have been metabolized in the body. As such, for dietetic purposes they are usually considered to be alkaline forming foods despite being acidic prior to consumption. Most fruits are alkaline except a few that include cranberries, plums and prunes. These fruits are classified as acidic because they contain acids the body can't metabolize.
the pH scale is a measurement of acidity of liquids. it ranges from a rating on 1 to 14. when it is at 1, it is very acidic and at 14 it is a strong alkali but at 7, its neutral like water. the pH scale also shows acidity by colour- at 1 it is a strong red, at 7 it is a green and at 14, it is a purple. ;)
The nucleus in a staining of cheek cells for microscopic analysis typically appears acidic when stained with basic dyes such as hematoxylin. This is because the basic dyes bind to the acidic components of the nucleus, resulting in a dark blue or purple color.
By using a universal pH indicator. If the pH indicator turns from red to blue, it will shows that it is a alkaline solution or a base, if the pH indicator turns from blue to red, it shows that it is an acidic solution. Hope its use full info for you>>>:)d