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(a) What are the units usually used to express the rates of reactions occurring in solution?
(b) From your everyday experience, give two examples of the effects of temperature on the rates of reactions.
(c) What is the difference between average rate and instantaneous rate?
The pH of a sample of rain is found to be 4.0. Calculate the percentage of HSO4- that is ionized in this sample, given that the acid dissociation constant for the second stage of ionization of H2SO4 is 1.2E-2.
If the charge calculated in the first part of this question is passed through a cell constructed of copper electrodes immersed in an acidic solution of copper sulfate (0.5 M CuSO4/0.1 M H2SO4), what mass of copper, in mg, will be deposited on the ..
a solution containing 3.50 of sodium carbonate is mixed with one containing 5.00 of silver nitrate. how many grams of
a constant volume container holds an equilibrium mixture of cl2g pcl3g and pcl5g gases which have partial pressures
Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, what is the entropy change?
Suppose you have a solution that might contain any of the following cations: Ni^(2+), Hg^(+), Fe^(3+) and Ca^(2+). Addition of excess HCl causes a precipitate to form.
Calculate the wavelength and frequency of light emitted when an electron changes from n = 4 to n = 3 in the H atom. In what region of the spectrum is this radiation found
Kunzite is a mineral containing lithium (Li) and has the empirical formula LiAlSi2O6. Calculate the proportion by mass of lithium in Kunzite.
Alpha-linolenic acid is one of a large group of fatty acids that are found in fish oil, walnuts and canola seeds. These nutrients are essential for good health. All of these fatty acids consist of an unsaturated hydrocarbon that is terminated by a..
A chemist wants to kilute 7.50 M HNO3 to make 800 mL of a 4.00 M HNo3 solution. What is the new volume
How does the diels alder reaction work for organic chemistry 2? What are the starting materials?
What is the pH of an aqueous solution with a hydrogen ion concentration of [H ] = 1.6 × 10-9 M? b) What is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of [H ] = 1.6 × 10-9 M?
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