A microspectrophotometer measures which of the following?

Electrons

Electricity

Light absorption

Pigments

What is the most important monosaccharide on Earth?

The equilibrium constant, Kp, for the following reaction is 9.52Ã10-2 at 350 K: CH4 (g) + CCl4 (g) 2CH2Cl2 (g). Calculate the equilibrium partial pressures of all species when CH4 and CCl4, each at an intitial partial pressure of 0.

Antoine Lavoisier stated that mass is conserved in chemical reactions. This is called the Law of Action-Reaction Elasticity Atoms Conservation of Mass

There are 81 amino acid residues in the precursor molecule of bovine insulin. What is the least number of bases that must be in the DNA chain that codes for this molecule?

Is the reaction of sodium bicarbonate with hydrochloric acid endothermic or exothermic?

An organic compound is one that contains the element carbon. true or false

Most thermal energy in the atmosphere is transferred by what

Identify water. weak electrolyte, weak acid nonelectrolyte strong electrolyte, strong acid weak electrolyte, strong acid strong electrolyte, weak acid

What is the atomic weight of a hypothetical element consisting of two isotopes, one with a mass of 62.2 u which is 24% abundant, and the other with a mass of 64.0 u?

A pure compound contains 24 g C, 4 g H, and 32 g O. If no other elements are present, determine the empirical formula of the compound. Be sure to show your work.