Question

an on the chromatogram, record distance traveled mcm. Pay attention to significant figures when Solvent 1 0.1% NaCl(aq) Solvent 2 70% isopropanol 5.0cm 24cm Lloom 0.60cm 17cm 1.8 3.4om 0.60 2.5cm 0.3 1.2 2.8cm 0.6 1.4 3.1cm

Answer 1

1. Methylamine is a polar solvent due to the high electronegativity of nitrogen. The N-H bonds are highly polar. Now, polar solvent dissolves a polar solute. A nonpolar compound is insoluble in a polar solvent.

b and e are nonpolar because they consist of only hydrogen and carbon atoms. So, these two compounds will be insoluble in methylamine.

2. Carbon tetrachloride is a nonpolar solvent. That is because, we have 4 Cl atoms, one at each corner in the tetrahedral molecule. So, they cancel out each other's polarity and make the molecule nonpolar. So, all polar compounds will be insoluble in carbon tetrachloride.

c and d are highly polar. So, they are insoluble in carbon tetrachloride.

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