The correct answer would be 3.) Location of an electron
One of the best buffer choice for pH = 8.0 is Tris with Ka value of 6.3 x 10^-9.
To support this answer, we first calculate for the pKa value as the negative logarithm of the Ka value:
pKa = -log Ka
For Tris, which is an abbreviation for 2-Amino-2-hydroxymethyl-propane-1,3 -diol and has a Ka value of 6.3 x 10^-9, the pKa is
pKa = -log Ka
= -log (6.3x10^-9)
= 8.2
We know that buffers work best when pH is equal to pKa:
pKa = 8.2 = pH
Therefore Tris would be a best buffer at pH = 8.0.
Answer:
43.7
Explanation:
mole is equal mass concentration/ moler mass of MgCl²
Answer:
B as all the forces cancel out
Explanation:
20-20=0
25-25=0
Answer:
not quite sure what you meant by the question but I think the answer you're looking for is biomass? not sure though
