Calculate the molar mass of the compound sulfur trioxide (SO3). Use the periodic table to obtain the atomic weight of the elements. Express your answer to the correct number of significant figures.

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?