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What is the pH of a substance that had a hydrogen ion concentration of 1.2 x 10 -2 M?
Wiki User
∙ 9y ago
pH = -log[H+] = -log(1.2*10-2) = 1.9
Wiki User
∙ 9y ago
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What is the pH of a solution of 1.0 x 10 -3 M H30?
pH is the negative log of the hydrogen ion concentrationthe hydrogen ion concentration is .001 in this instance thereforepH = -log[.001] = 3
What is the pH when the hydrogen ion concentration is 2.0 x 10-3 M?
- log(2.0 X 10 -3 M) = 2.7 pH ======
What does the term pH mean?
pH is the measure of the acidity or alkalinity pH means the power of Hydrogen. It is 'minus the decimal logarithm of the hydrogen ion activity in an aqueous solution'. The term was coined by Sørensen, it measures the alkalinity or acidity of a liquid. pH is a measure of the concentration of hydrogen ions [H+] in a solution. The concentration of the hydrogen ions is measured in Molarity (M), or moles of H+ ions per liter of solution. The pH is then expressed as the negative log (base ten) of the hydrogen ion concentration. pH = -log[H+] For example, if a solution has a hydrogen ion concentration of 4.75 x 10-5 M (or 4.75 x 10-5 moles of H+ ions per liter of solution), then the pH of the solution would be -log[4.75 x 10-5] = 4.323 pH is generally given on a scale from 0-14, with 0 being the most acidic solution (like HCl) and 14 being the most basic solution (for example, NaOH.), although extreme values may sometimes fall outside that range. Pure water has a pH of 7 because its H+ concentration is 1.0 x 10-7 M -log[1.0 x 10-7] = 7
What is the pH of a solution that has hydrogen equals 2.3 x 10-4?
Molarity of hydrogen solution equals 2.3 X 10^-4 -log(2.3 X 10^-4) = 3.6 pH
How much mass is in 10 cm3?
That would be (10) times (the density of the substance).
What is the difference between pH and hydrogen ion concentration?
The pH value of a particular solution is equivalent to -log[hydrogen ion concentration].
What does the hydronium ion concentration measure for a substance?
The hydronium ion concentration measures how acidic a substance is. A high hydronium ion concentration means the substance is acidic. A low hydronium ion concentration means the substance is basic. You may be more familiar thinking of it as the pH scale. At pH = 7 [H3O]+ = 10-7 and [OH]- = 10-7
What happens to the hydrogen ion concentration as you decrease the pH?
Hydrogen ion concentration increases.
What is H ion concentration of ph11?
The following equation will get you to the answer where [H+] is the concentration of hydrogen ion: pH = -log( [H+] ) or [H+] = 10-pH
What is meant by pH solution?
p means -log10 of a number, H is shorthand for hydrogen ion concentration. If hydrogen ion concentration is 10^-4 mols/litre, pH is 4
If the hyrdoxide ion concentartion increases what happens to the hydrogen ion concentration?
The Hydrogen ion concentration decreases. Remember that these two ion concentrations are inversely proportional, in formula: [H+].[OH-]= 1.0*10-14 or pH + pOH = 14.
Is the pH of solution is the negative logarithm of its hydroxide ion concentration?
No, the pH is the negative logarithim to base 10 of the Hydrogen Ion concentration.
What does an increase pH of 1 represent?
A decrease in hydrogen ion concentration by factor of 10
What does an increase of 1 number represent?
A decrease in hydrogen ion concentration by factor of 10
What does a change in pH of one unit represent in terms of hydrogen ion concentration?
-1 pH unit = *10 concentration
If the hydrogen ion concentration of a solution is 10-10M is the solution acidic alkaline or neutral?
Alkaline
What does an increase 1 pH number represent?
A decrease in hydrogen ion concentration by factor of 10
