I calculated the molarity of the 2nd reaction table but ALEKS does not provide any pKa value. The only data they provide is volume of titrant and the molarity of the first and second molecules at 25C. I understand from this point you would use the pKa value to get Kb but if its not provided how to continue? edit: I learned that if both the acid and base are strong then the pH at equilibrium = 7. The problem was asking about HNO3 and NaOH and they're both strong so pH = 7
If one of the products of the first reaction is either a weak acid or a weak base, you have to make a second ICE table showing that weak acid/base reacting with water. That reaction also contributes to the pH of the solution.
its muffled through some of it, but your explanation are saving me right now
You are amazing, and genuinely the only reason I might pass chem 2
ahhhhh you're the one doing all the hard work!! I'm just here to help!
I calculated the molarity of the 2nd reaction table but ALEKS does not provide any pKa value. The only data they provide is volume of titrant and the molarity of the first and second molecules at 25C. I understand from this point you would use the pKa value to get Kb but if its not provided how to continue?
edit: I learned that if both the acid and base are strong then the pH at equilibrium = 7. The problem was asking about HNO3 and NaOH and they're both strong so pH = 7
Ah! Thank you! I’ve been so confused when people have said they had no Ka or Kb but solved it anyway. Thanks for letting me know!
Could you explain a bit more why we need to make a second ICE table?
If one of the products of the first reaction is either a weak acid or a weak base, you have to make a second ICE table showing that weak acid/base reacting with water. That reaction also contributes to the pH of the solution.
@@RoxiHulet thank you soooo much!!!!
How did you get the ph in the last part of the video?
pH + pOH = 14
Is there a difference between the two videos that you’ve made on titration?
I have a lot of videos on titrations - which particular one are you asking about?
do you do the same process is aleks provides you with a pKb value?
No idea if you still need help, but pKb is found by doing 14-pKb since pKa + pKb always equals 14.
what do you do if theres no pka given
Hmmm... do you have a Ka? If you don't have a pKa or Ka, what data does the problem give you?
nothing other than what was already given hahaha, but no worries! I managed to figure it out@@RoxiHulet
how did you figure it out? @@doghousemma7894
I'm also curious to know what information is provided if it is not Ka or pKa...
how did you figure it out? my ALEKS question also did not give me a pka or Ka or even a pkb@@doghousemma7894