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What is a substance that has a pH of more than 7.0.?
an example is baking soda, milk of magnesia, blood.
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.
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.
What is the pH scale based on?
pH scale ranges from 0 - 14. It measures the acidity or basicity of a solution. A measurement of 7 is neutral, less than 7 is acidic and a basic is higher than 7. pH is measured based on the concentration of hydroxide and hydrogen (or hydronium) ions in solution. A solution containing hydrogen (H+ ions) or Hydronium ions (H3O - which is made from the reaction of hydrogen ions with water) indicate a pH lower than 7 or an acidic solution. A solution containing hydroxide ions (OH-) creates a basic solution with a pH greater than 7. It is possible to measure a pH that is greater than the bounds of the scale since the calculation for the scale is based on the negative log of the concentration of hydrogen (or hydronium) ions in the solution. pH=-log[H3O] therefore [H3O] = 10^-pH
What are PH Substances higher than 7?
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Does acid always has a pH less than 7 or greater than 7?
Acids have a pH less than 7; a pH of 7 is considered neutral. Substances with a pH greater than 7 are considered alkaline or basic.
What pH numbers do acids have?
Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are alkaline.
Do alkalis have a pH less than 7?
no they alkaline solutions have a pH higher than 7
Solution with a PH of 0 to 6 are called?
acidic PH 7 is neutral and pH greater than 7 is basic.
Do bases have a pH of more than 7?
Yes, bases have a pH greater than 7. They typically have pH values higher than 7 up to 14, indicating their alkaline nature.
Is a base a acid on the pH scale?
No, a base is the opposite of an acid on the pH scale. Acids have pH values less than 7, while bases have pH values greater than 7. A neutral pH is 7.
Dose a base have a pH of greater or less than 7?
If I remember correctly, bases have low pH and acids have high pH; therefore, a base would definitely be less than 7.
Does a base have a pH of greater or less than 7?
no acids are higher than seven and bases are lower than seven
How do the characteristic of bases differ form those of acids?
Bases tend to recieve an H+ ion in a titration, and acids tend to give an H+ ion in a titration. Bases have a pH greater than 7 and acids have a pH less than 7.
What is the range of values that are used to express the acidity or alkalinity of a system?
The pH scale. The pH scale goes from 0 to 14. Substances that have a pH of 7 are neutral, acids have a pH of less than 7, and bases have a pH of greater than 7.
When acids and bases are mixed they what each other?
Acids have a pH from 7 to 0 and bases have a pH for 7-14. Water is neutral with a pH of 7. If an equal strength acid and base are mixed together they cancel each out out.
Does acids or bases have a greater pH?
Bases have pH above 7, acids below 7, so the base pH is higher, though the acidity is lower.
