Answer:
E) 0.90
Explanation:
In TLC (Thin-Layer-Chromatography) retention factor RF is defined as the ratio between distance of the sample and the solvent front. RF is very important in chemistry to know the composition of any sample by comparison.
In the problem, as the sample has a distance of 0,20cm from the solvent front, the distance of the sample is:
2,0cm - 0,20 cm =<em> 1,8 cm</em>. Thus, RF is:
RF = 1,8cm / 2,0cm = 0,90
<em>E) 0,90</em>
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I hope it helps!
The precision of the <span>volume of liquid delivered by the slanted buret would be affected by giving you erroneous readings. You will have more volume than what really is the volume. Hope this answers the question. Have a nice day.</span>
2+2=4 and I am a pimp. No cap murdergang slat
Answer:
The setup above is used to collect hydrogen gas
