chemistry
posted by Monique .
I need help calculating [H3O] from pH and the pOH scale
using my calculator. I have a TI30XIIS

chemistry 
DrBob222
Given pH = 4.67, pH = ?
pH = log(H^+)
4.67 = log(H^+)
4.67 = log(H^+)
(H^+) = 2.29E5
Here is how you do it on the calculator.
Punch in 4.67. Hit the change sign to it becomes . (If you don't have a change sign, punch in 4.67 at the start.)
Now locate and hit the 10^{x} key. That should return 2.29086E5 which can be rounded.
For pOH, the easy way, if you have pH, is
pH + pOH = pKw = 14
So 14=pH = pOH.
If you have OH^ already, then
pOH = log(OH^) and it works just like the pH does. By the way, if you need pKa, it works just like pH and pOH, pKa = log Ka. pKb = log Kb.
Respond to this Question
Similar Questions

chemistry
Calculate the hydronium ion consentration and the hydroxide concentration in blood in which the PH is 7.3. Hydronium = [H3O+] = 10pH or [H3O+] = antilog ( pH) and I got 1.00 x 10^7.3 for both concentrations is this correct? 
Chemistry
this makes absolutley no sense I plug all this into my calculator but I get different results. The hydronium ion concentration can be found from the pH by the reverse of the mathematical operation employed to find the pH. [H3O+] = … 
Chemistry
Find the concentration of H3O if the pOH of a solution is 11.700: So far I have: pH= 14.000 pOH which is 14.00011.700=2.300 pH = log[H3)] 2.300 = log[H3O] Lost after that!!! Help please. 
Chemistry
Find the [H3O+] in a solution having [OH] = 8.8x10^2 M [H3O+]x[OH]=1x10^14 [H3O+]x[8.8x10^2]=1x10^14 i am almost sure i am right up to here but i don't know what to do next and i don't have a scientific calculator.. please help!! 
Chemistry(Please respond, thank you)
What is the [H3O+] for a neutral solution at 50 degrees celsius? 
Chemistry/Calculus
I have a question about how to plug in numbers on my calculator (TI30XIIS) to get an answer. How would I put in my calculator... ln 1.00X 102 mol/L /1.65 X 102 mol/L to get0.501? 
Finding OH,H3O+, pH, and pOH?
Hi! I am very stuck with these problems. I have tried to solve for each of these values, but I keep getting the answers wrong. Q: For each of the following strong base solutions determine OH, H3O+, pH, and pOH: 8.66×10−3 M … 
Finding OH,H3O+, pH, and pOH?
Hi! I am very stuck with these problems. I have tried to solve for each of these values, but I keep getting the answers wrong. Q: For each of the following strong base solutions determine OH, H3O+, pH, and pOH: 8.66×10−3 M … 
Chemistry
Sometimes the basicity of a solution is reported using pOH (pOH = log[OH]). What is the a. [OH] if pOH = 1.90 b. [H3O+] if pOH = 12.94 c. pH if pOH = 9.70 
chemistry
Sometimes the basicity of a solution is reported using pOH (pOH = log[OH]). What is the a. [OH] if pOH = 1.90 b. [H3O+] if pOH = 12.94 c. pH if pOH = 9.70