Perform the following operation. Express your answer in scientific
notation.

1.55 x 103 x 1.20 x 103

A.2.75 x 103

B.1.86 x 106

C.2.75 X 106

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.