The pH of a solution is 2.60. What is the [H3O+] for the solution?

2.51 * 102 M

3.98 * 102 M

2.51 * 10-3 M

3.98 * 10-3 M

What is the molar mass of chromium? 24.00 grams/mole 52.00 grams/mole 6.02 x 10^23 grams/mole 1.0 gram/52.00 moles

Type of ion formed by group 2A elements

Speed is zero when a line on a graph has this shape

Basic molecules contain more ... a hydrogen ions (H+). b water molecules. c hydroxide ions (OH-). d oxygen atoms.

How does the current model of the atom differ from j. j. thomsons model

Many trials are not needed before a hypothesis can be accepted

Consider the following reaction where Kp = 4.55*10-5 at 723 K: N2 (g) + 3H2 (g) ⇋ 2NH3 (g) a) If the three gases are mixed in a rigid container at 723 K so that the partial pressure of each gas is initially one atm, what will happen?

Rob measures the solubility of three different salts in water at 22°C. Which type of graph should he use to display his data? bar graph line graph histogram scatterplot

Consider the reaction below. The initial concentrations of PCl3 and Cl2 are each 0.0571 M, and the initial concentration of PCl5 is 0 M. If the equilibrium constant is Kc=0.

How many grams of carbon dioxide are in 11 moles of it?