How many milliliters of 0. 14 m hcl must be added to 52. 8 ml of 0. 45 m hcl to give a final solution that has a molarity of 0. 26 m? chegg.

what are the two models

explanation:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).