Achieve Week 2 #1

[Tsii 2H]

Would I need to employ ICE in order to solve this problem? I'm a bit stumped on how to approach it.

[Anjali Botcha 3B]

Yes, you would need to use an ICE table in order to get the concentration of H+. After finding that concentration, you can use -log[H+] to find the pH.

[Minoo Bastani 2J]

You would need an ICE table in order to begin this problem and get the concentration of H+. Once you have that, solving the pH is easy.

[Meghan Spoeri 2D]

hi! When you are given a problem like this, it is helpful to note that it is weak acid. Whenever we are working with a weak acid, we would need to use an ICE chart because weak acids do not dissociate completely.

[Ziyi Meng 2K]

Since its a weak acid, it does not completely dissociate so you have to set up an ICE table to find the amount of change. Once you set it up, you should get the Ka = x^2/initial - X, once you figure out what X is, you can take the negative log to find the pH.

[Kailin Mimaki 2K]

Yes, use an ICE table. I set up the equation HA(aq)—> H+(aq)+A-(aq) and then used the initial concentrations, then completed my ICE table. Next, I set up the equation 8.3x10^-6=x^2/(0.26-x). Because the constant is so small, we can cross out the -x in the denominator, and solve for x. Then we take the -log of the concentration of H+(the x you just calculated), and you have your answer. Hope this helped!

[Madison Chan 3B]

Yup! You'll need to use an ICE table with the given initial concentration for the acid. From there you'll set up your Ka equation and find the x-value. Since we are dealing with a weak acid, pH = -log[H30] = -logX

[Genelle Marcelino-Searles 2G]

Yes, you would need to use an ICE table and set Ka=x^2/initial-x and solve for x. Then you can solve for the pH from here.

[Abu Zhang 2D]

Hi! I think whenever we deal with chemical equilibrium when there is an initial, change, and final concentration, the ICE table would always be a useful tool to solve a problem. In this case, the ICE table helps you to calculate the final answer. Even if not for calculation, listing the components in an ICE table always allows me to find a relationship within the problem.

[Windell Viste 1K]

Hi, yes like everyone has said, you would use an ICE table. The given M is the initial concentration of the acid and you would complete the ICE table to solve for X which would be [H+] and then the pH. :D

[Isela Tamayo 3H]

you need to get the concentration of H+ and to do that you need to do the ICE table.

[Thailer Phorn 1C]

Yes, you need to do an ICE table before proceeding with the final steps of this problem.