What is the molar mass of copper (II) sulfate, CuSO4? Select one: O A. 63.55.9 OB. 159.629 O C. 111.55 g D. 319.17 g O E. 16.00 9 An unknown compound is composed of the elements Nitrogen and Oxygen. The compound is analyzed and determined to be 30.45% and 69.55% 0. The molecular mass of the compound is found to be 02.01 g/mol. Determine the compound’s molecuar formula and provide your answer below as Nxoy where x and y are the subscripts. Answer: The empirical formula of a compound is CH2, and its molar mass is Is its molecular formula? Select one: A. C4H8 B. CH2 C. C3H6 D. C2H4 E. C5H10