Open Question
Why does water in a glass tube with grease or oil residue display a flat meniscus, whereas water in a clean glass tube displays a concave meniscus?
Determine whether each molecule is polar or nonpolar. c. BrCl5
When a thin glass tube is put into water, the water rises 1.4 cm. When the same tube is put into hexane, the hexane rises only 0.4 cm. Explain.
Which evaporates more quickly: 55 mL of water (H2O) in a beaker or 100 mL of acetone [(CH3)2CO] in an identical beaker under identical conditions? Is the vapor pressure of the two substances different? Explain.