If a buffer solution is 0.130 M 0.130 M in a weak acid (K a = 1.4 * 10 - 5) Ka=1.4*10-5) and 0.540 M 0.540 M in its conjugate base, what is the pH?

By examining electron domain geometry, one can determine that the ammonia molecule (NH3) has (A) one sp2 orbital. (B) two sp2 orbitals. (C) three sp3 orbitals. (D) four sp3 orbitals.

Which of the following groups of atoms are most likely to have similar properties?

There are 64 pretzels in a 16-ounce bag how many proportion would be in a 5-ounce bag?

Which of these do not obey the octet rule? select all that apply. select all that apply. clo clo - clo2 - clo3 - clo4-?

A water reclamation plant turns sewage water directly into drinking water. a. true b. false

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

An element x forms an iodide (xi3) and a chloride (xcl3). the iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2xi3+3cl2â2xcl3+3i2 if 0.5500 g of xi3 is treated, 0.2596 g of xcl3 is obtained.

When you kick a soccer ball across a field it will eventually come to a stop. Does this prove or disprove Newton's first law of motion? It disproves Newton's first law of motion because gravity is stronger than friction.