Chem Chapter 10 Test Questions and All Correct Answers Updated.

molar volume - Answer the volume occupied by a mole of any gas at STP molar mass - Answer the mass of a mole of any element or compound atomic mass - Answer the number of grams of an element that is numerically equal to the atomic mass of the element in amu representative particle - Answer an atom, an ion, or a molecule, depending upon the way a substance commonly exists mole - Answer the SI unit used to measure amount of substance Avogadro's number - Answer the number of representative particles of a substance present in 1 mole of that substance percent composition - Answer the percent by mass of each element in a compound standard temperature and pressure - Answer 0° and 1 atm empirical formula - Answer the smallest whole number ratio of the atoms in a compound Which of the following exists as a diatomic molecule? - Answer nitrogen Avogadro's number of representative particles is equal to one - Answer mole All of the following are equal to Avogadro's number EXCEPT - Answer the number of atoms of bromine in 1 mole Br₂ How many nitrogen atoms are in 5 molecules of isopropyl alcohol, C₃H₇O? - Answer 35 Which of the following is NOT true about atomic mass? - Answer The atomic mass is 12 g for magnesium.