Calculate the H3O+ concentration present in water under the following conditions. Enter your answer in scientific notation.
a. [OH-] = 2.8 x 10-7 M
b. [OH-] = 8.8 x 10-3 M
c. [OH-] = 2.4 x 10-11 M
everytime I do the problem In the calculator I get system error someone please help I think my calculator is broken
Johnny said he didn't have a calculator and wants someone to do his work. I did one problem. Then Danny says his calculator returns the wrong answer so it may be broke(n). Then I find Danny and Johnny are the same computer. :-(.
Do we have an answer moocher?
To calculate the H3O+ concentration (also known as the hydronium ion concentration) in water, you can use the relationship between the H3O+ and OH- concentrations in pure water.
In pure water at 25°C, the product of the H3O+ and OH- concentrations is always constant, equal to 1.0 x 10^-14 M^2. This is known as the equilibrium constant for water, or Kw.
So, to find the H3O+ concentration when given the OH- concentration, you can use the equation:
[H3O+] = Kw / [OH-]
a. [OH-] = 2.8 x 10^-7 M
[H3O+] = (1.0 x 10^-14 M^2) / (2.8 x 10^-7 M) = 3.57 x 10^-8 M
b. [OH-] = 8.8 x 10^-3 M
[H3O+] = (1.0 x 10^-14 M^2) / (8.8 x 10^-3 M) = 1.14 x 10^-12 M
c. [OH-] = 2.4 x 10^-11 M
[H3O+] = (1.0 x 10^-14 M^2) / (2.4 x 10^-11 M) = 4.17 x 10^-4 M
Note: If you're getting a system error when using your calculator, make sure you're correctly inputting the numbers and using the correct scientific notation format. Double-check the syntax and order of operations, and ensure that your calculator is in the correct mode (e.g. scientific notation mode). If the issue persists, you may consider seeking assistance from a professional or checking your calculator's manual for troubleshooting tips.