Answer:
The proper matching is given below.
Explanation:
a Separate molecules by size size exclusion chromatography
b Separate molecules by charge Ion exchange chromatography
c The stationary phase has a covalently bound group to which a protein in the mobile phase can bind. Affinity chromatography
d uses mobile phase and stationary phase to separate protein Size exclusion chromatography
e The stationary phase contain cross linked polymers with different pore size
Size exclusion chromatography
f can separate molecules based on protein ligand binding Affinity chromatography
g The stationary phase may contain negatively or positively charged groups
ion exchange chromatography
Conduction is the sun's way of heating Earth.
I need brainliest!!!
Answer:
The atomic mass of nitrogen is
<h2>
14.0067 u</h2>
<h2>
<em>You learn more from failure than from success</em></h2>
Answer:
The natural abundance of Re-185 is 40% and of Re-187 is 60%
Explanation:
Relative atomic mass is defined as the sum of the mass of each isotope times its relative abundances.
Is Rhenium has only 2 isotopes and the abundances are X and Y we can write:
X + Y = 1 <em>(1)</em>
And:
185X + 187Y = 186.2 <em>(2)</em>
<em>Where X is abundance of Re-185 and Y abundance of Re-187</em>
<em />
Replacing (1) in (2):
185X + 187(1-X) = 186.2
185X + 187-187X = 186.2
-2X = -0.8
X = 0.4 = 40%
And Y = 100% - 40% = 60%
<h3>The natural abundance of Re-185 is 40% and of Re-187 is 60%</h3>