What’s the ratio hcl:h2o

2:1

Explanation:

Write an equation for the reaction with hcl that gives h20 as one of the products

hcl +o2↔h20 +cl

then balance the equation

4hcl + o2↔2h20 +cl

4               :    2

simplify

2:1

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.