<span>When pKas of polyprotic intermediates have a difference of 2 or more you just average them using the equation: pH = (pKa2 + pKa3) / 2 </span>
<span>pKa2 = -log(Ka2) ; pKa3 = -log(Ka3) </span>
<span>so, for this problem, REGARDLESS OF THE CONCENTRATION GIVEN, the answer is: </span>
<span>pH = (7.2076+12.3767) / 2 </span>
<span>pH = 9.79</span>
Answer:
The pressure inside the container is 11 atm
Explanation:
We use the formula;
PV=nRT ---> P= nRT/V
P= 28 mol x 0,082 l atm/K mol x 215 K/45 L
<em>P=10,96977778 atm</em>
Answer:
The temperatures on Earth increase
Explanation:
more energy results in more heat.
Answer:
In homogeneous solute dissolves completely in latter it doesn't
homogeneous example: sugar and water
heterogeneous: oil and water
