Consider the following unfinished table of weak acids with their corresponding pKa values and Ka values.
Weak AcidpKa
Ka
Benzoic acid 4.20
--
Lactic acid --
1.4 ´ 10-4
Chlorous acid 1.96
--
Arrange these three acids in order of increasing acid strength.
Determine the molar mass of Freon-11 gas if a sample weighing 0.597 g occupies 100 cm3 at 95°C and 1000 mmHg (R = 0.08206 L • atm/K • mol, 1 atm = 760 mmHg).
At a certain temperature, the data below were collected for the reaction below.2ICl + H2 → I2 + 2HCl.Determine the rate constant for the reaction.<img src="https://sciemce.com/files/4/ppg__rrrr0818190818__f1q410g1.jpg" alt="" style="vertical-align: 0.0px;" height="98" width="407" />
Light was an important tool in developing our models of atomic structure. Which set of answers correctly describes the relationships among color, energy, and wavelength of light?
A reaction is experimentally found to follow the rate law, Rate = k[A]2 where k = 0.130 M-1min-1. Starting with [A]o = 2.50 M, how many seconds will it take for [A]t = 1.25 M?
Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds × 60. yds to a depth of 1.0 mm? (1 inch = 2.54 cm)
Statements: (1) A molecule is a group of two or more atoms that functions as a unit because the atoms are bound together by chemical forces. (2) The crushing of ice to make ice chips is a physical procedure that involves a chemical change. (3) Most naturally occurring samples of matter are mixtures rather than pure substances