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The concentration of hydronium (or hydrogen) ions in solution is found by raising to to the negative pH. In this case, we know that the pH is 7 because it is neutral, so we would say...

[H3O+] = 10-pH

[H3O+] = 10-7

[H3O+] = 1.0 x 10-7 mol/L

Neutral solutions have equal concentrations of H3O+ and OH-, so the hydroxide concentration is the same as the hydronium concentration: 1.0 x 10-7 mol/L.

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Q: What is the concentration of hydronium and hydroxide ions in molarity in a neutral solution?
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What is true about the relative concentrations of hydronium and hydroxide ions in an acid solution?

In an acidic solution, the relative concentration of hydronium ions will always be higher than hydroxide ions. This means that the relatively concentration of hydroxide ions will always be lower than hydronium ions in an acidic solution. The reason for this is that in a neutral solution, the concentration of both hydronium ions and hydroxides ions are equal (both are 10-7). By making the concentration of hydronium ions greater than the concentration of hydroxide ions, the solution becomes acidic.


A solution has a hydroxide concentration of 0.0000125 M What is the concentration of hydronium ions in the solution?

8.0*10^-10 m


Are hydronium ions contributed to a solution by a base or acid?

Acids have more hydronium than hydroxide. Bases are the reverse of that.


What is the concentration in molarity of hydronium ions in a solution at 25 degrees Celsius with pH4.282?

take the antilog value


Is hydronium ion acidic?

Yes, in fact an acidic solution is, by definition, one where the hydronium ion concentration is higher than the hydroxide ion concentration.


What is the concentration of hydronium ions in a solution given that the concentration of hydroxide is 2.31 x 10 -4?

4.33 X 10^11


How is the strength of a salt determined using the pH scale?

pH is a measure of the concentration of hydronium ions in a solution. pOH is a measure of the concentration of hydroxide ions in a solution. When a salt is placed into a solution (typically an aqueous solution), the cation and anion can either dissociate completely or partially, and can react with other ions in solution. If the salt pulls hydroxide ions out of solution, the solution becomes more acidic, and if the salt pulls hydronium ions out of solution, the solution will become more basic. So, if you want to determine the "strength" of a salt, add it to water and measure the hydronium ion concentration of that solution.


Is 9 the pH of equal numbers of hydronium ions and hydroxide ions?

No. pH is the negative logarithm of the concentration of the hydronium ion. Equal numbers of hydronium ions and hydroxyl ions occurrs only when a solution is neutral.


What is the hydroxide ion concentration in an aqueous solution in which the hydronium ion concentration is 0.13M?

-log(0.13) = 0.88 ----------- 14 - 0.88 = 13.12 1/10(13.12) = 7.59 X 10-14 M hydroxide ion concentration ----------------------------------------------------------


What is the OH- of a 4.0 x 10-4 M solution of CaOH2?

The concentration of the OH- is 8.0 x 10-4 In terms of molarity, since the hydroxide is double that of the calcium, double the molarity of the solution.


What molarity of a solution indicate?

Molarity is an indication for concentration.


What does molarity of a solution indicate?

Molarity is an indication for concentration.