A 1.0 L beaker contains a slurry of fine sand evenly dispersed in 0.100 M NaCl(aq)
CHEMISTRY · Subjective · CBSE · Chemistry · Is Matter Around Us Pure? · Is Matter Around Us Pure?
Problem
A 1.0 L beaker contains a slurry of fine sand evenly dispersed in 0.100 M NaCl(aq). Immediately after vigorous stirring, 10.0 mL samples are taken from the top (Sample A) and bottom (Sample B) of the beaker. Ten minutes later, without further agitation, two additional 10.0 mL samples are taken from the top (Sample C) and bottom (Sample D). Predict, using the terms greater than, less than, or equal to, how
(i) the mass of sand and
(ii) the moles of dissolved NaCl
in Sample C compare to those in Sample A, and briefly justify each comparison in a single sentence.