C. What is the relationship between the atomic mass of an element and a mole of that element's atoms? (.5 point) Question 2: Unit Conversions (2 points)

Use the periodic table to answer the following questions. (Round atomic masses to the nearest tenth unit.)
a. What is the molar mass of Fe(NO3)2? (.5 point)

b. What is the number of moles of 27.6 g of lithium (Li)? (.5 point)

c. What is the number of molecules of 140 g of CO? (.5 point)

d. What is the molarity of 48.6 g of magnesium (Mg) ions in 2 L H2O? (.5 point)