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I think its cool that the pH scale is logarithmic! That means that a pH of 8 is 10 times more basic than a pH of 7! cool!
Its also really cool that pH is the negative logarithm of the hydrogen ion concentration!
theres a such things pH indicators which lets you know if the solution contains acidic base or not
pH is a scale that measures acidity and basicity of a substance, with a usual range of between 0-14. The closer the value is to zero, the more acidic the substance is. The closer it is to 14, the more basic it is. However, some extreme substances can have pH of higher than 15 or lower than 0. pH is calculated by the equations:
pH = - log [concentration of H+ ions]
(or)
pH = 14 + log [concentration of OH- ions]
Since it is a logarithmic scale, each number differs by a factor of ten from the next. For example, a substance of pH 3 is 10 times more acidic than a substance of pH 4.
The pH scale was first used by a Swedish botanist, I believe, in his studies to determine the effects of acidity on plant growth. The scientific community liked the idea so much that it became official.
Wiki User
∙ 11y ago
Wiki User
∙ 9y ago5 facts about acids:
- they have low pH (0-7)
- they contain the hydrogen ion (H+) (or some ion that acts as H+)
- they taste sour
- they are electrolytic in solution
- they are corrosive, especially to metals
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PH values of acids?
Acids generally have a pH ranging from 1 - 6. pH 1 being the most acidic, and pH 6 being the least acidic. eg, hydrochloric acid, nitric aicd, sulfuric acid has a pH of 1. Ethanoic acid has a pH of 3.
Does starch have a pH?
everything has a pH
What value is used to express the acidity or alkalinity of a system?
Normally term,'PH' of a solution is used determine the strength of an acid which is nothing but the concentration of H+ ion concentration in a solution. ph= -log[H+] concentration.... since its -ve log hence smaller value of PH means it's more strong acid. ph=7 is value of water which is neutral. pH ranging below 7 are acids & above 7 are bases.
What is above average pH levels in rain?
8.0 ph
What equation is used to calculate the pH of a solution?
pH = -log [H+(aq)]. In words, pH is the negative logarithm (to the base 10) of the hydrogen ion concentration.
What are facts about indicators?
There are many facts about indicators. One is that is uses a pH chart to indentify whether the substance is an acid or a base.
What is the most acidic pH 10 pH 3 pH 2 pH 6 pH 8 pH 12 pH 1 pH 75?
PH 75 is the most acid.
What solutions is the weakest acid pH of 2.4 pH of 5.2 pH of 6.4 pH of 8.6 or pH of 10.1?
pH=6,4
How much stronger is pH 9 than pH 4?
pH 9 - pH 4 = pH 5 It is stronger by 5 pH.
Do you use pH or PH?
neither pH
What has a pH of two?
A dilute acid. The concentration of H+ is 10-2 moles per litre. So 0.01M HCl for instance. I didn't write the facts below- they may be correct:- Diet Drinks tend to be close to the 2-range. And Acid Rain is close to a pH level of 2.
Which is the most acidic pH 2 pH 5 pH 7 or pH 11?
Most acidic is substance of pH of 2, then of pH of 5 and the substance of pH 7 is neutral and the substance of pH 11 is basic
What is the most acidic pH 10 pH 3 pH 2 pH 6 pH 8 pH 12 pH 1 pH 7.5?
The lower the pH, the more acidic the solution is. Remember, pH 7.0 is H2O. As pH decreases below 7, the solution's acidity increases. As pH increase above 7, the basicity of the solution increases. Hence, in the choices you provided, pH 1.0 is most acidic.
How do we find out the pH?
The pH is determined with a pH-meter.
Which ranges on the pH scale are acidic basic and neutral?
pH 0 < acidic < pH 7 neutral = pH 7 pH 7 < basic < pH 14
What has a pH level of two?
A dilute acid. The concentration of H+ is 10-2 moles per litre. So 0.01M HCl for instance. I didn't write the facts below- they may be correct:- Diet Drinks tend to be close to the 2-range. And Acid Rain is close to a pH level of 2.
Mixed equal volumes of HCl one with pH 4.0 and the other pH 6.0 what is the final pH?
Most probably PH 12, that is if you add 8+4
