Answer:
Row 1
pOh=14-pH=14-5.7=8.3
Hence, acidic
Row 2
pH=14-pOH=14 - 9.4 = 4.6
Hence, acidic
Row 3
pH = 8.15
pOH=14-pH=14 - 8.15 = 5.8
Hence, basic
Row 4
pOH = 5.70
pH=14-pOH=14 - 5.70 = 8.3
Hence, basic
<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>
Explanation:
One molecule of the antibiotic known as penicillin G has a mass of ... b) If you isolate 115 g of zinc chloride, what is the percent yield of the metal ... This drives off the volatile hydrochloric acid, but the.
Answer:
Explanation:
A pinhole camera is a simple camera without a lens but with a tiny aperture, a pinhole camera – effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.