Question

calculate the pH of a 0.1 M solution of baking soda.
showing step by step.

Answer 1

Baking soda acts as a base at pH =7

so write an equation for the process and it's equilibrium expression.

Make an ICE table and plug the values from E into the eq. expression.

use \([OH^-]\) to find pH.

Answer 2

how would i write the equation for the process and its equilibrium expression.

Answer 3

\(HCO_3^-+H_2O\rightleftharpoons OH^-+H_2CO_3\)

\(K=\dfrac{[products]}{[reactants]}=\dfrac{[OH^-][H_2CO_3]}{[HCO_3][H_2O]}\)

but it reduces to:

\(K=\dfrac{[OH^-][H_2CO_3]}{[HCO_3]}\)

Answer 4

thank you so much that was lots of help.

Answer 5

no problem, glad i could help

Answer 6

:)