🤓 Based on our data, we think this question is relevant for Professor All Professors' class at TAMU.
(1) Find the Ka and H+ from pKa and pH
Ka = 10-pKa = 10-9.26 = 5.50x10-10
(2) Set up ICE table and find initial NH4+ where x = 0.0001
(3) Find y where x = 0.0001.
Ammonium (NH4+) is a weak acid with a pK a of 9.26. The dissociation is:
NH4+ ⇌ NH3 + H+
Calculate the mass of ammonium added to 1 L of water in order to obtain a pH of 4 at equilibrium.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Weak Acids concept. If you need more Weak Acids practice, you can also practice Weak Acids practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor All Professors' class at TAMU.