Sulfurous Acid, H2SO3, is a diprotic acid, with the following acid dissociation constants: Ka1 = 1.4 * 10-2 Ka2 = 6.7 * 10-8 What is the Kb for SO32 - at 25ºC? Group of answer choices 9.4 * 10-10 1.5 * 10-7 6.7 * 10-8 7.2 * 10-13

What is Charles law?

In Organic Chemistry, what does the letter "X" represent? a. a hydrogen c. a carbon b. a halogen d. an alkane

Increased concentration generally increases the reaction rate A.) True B.) False

Hydrogen reacts with oxygen to produce water. 2H2 (g) + O2 (g) → 2H20 (1) The mass of oxygen before and after the reaction A. varies with the experimental conditions B. is always the same. C. is sometimes same and sometimes different. D.

What was Nicholas Steno's contribution to geology?

What is the percent by mass of solute if 14.60g 74.95g of water?

7 An atom that has 13 protons and 15 neutrons is an isotope of the element (1) nickel (3) aluminum (2) silicon (4) phosphorus

The graph below shows how solubility changes with temperature. What is the solubility of Na2HAsO4 at 60°C? 20 g/100 mL of water 46 g/100 mL of water 65 g/100 mL of water 70 g/100 mL of water

Which statement regarding water is true? Energy must be given off in order to break down the crystal lattice of ice to a liquid. Hydrogen bonds are stronger than covalent bonds. Liquid water is less dense than solid water.

Which of the following elements has the fewest valence electrons?. a. beryllium. b. boron. c. carbon. d. lithium