Question

4.3 Percent Yield 5. Aspirin is produced by the reaction of salicylic acid (AM=138.1 g/mol) and acetic anhydride (M-102.1 g/mol). CH O(E) CoHO(s) +C2HO2(e) C H&O3(s) If 5.00 g of CsHO (M 180.2 g/mol) is produced from the reaction of 5.00 g CaHeO, and 6.00 g CaH&O, what is the percent yield? a) 11.6% 68.8% c) 59.9% b) 29.0% e) 76.68% 4.6 Chemical Equations and Chemical Analysis 6. A mixture of MnSOs and MnSO4 4H2O has a mass of 2.005 g. After heating to drive off all the water the mass is 1.780 g. What is the mass percent of MnSO4-4H2O in the mixture? a) 34.7% b) 41.2 % D65.3% d) 69.6% e) 88.8% 101 3HO

Answer 1

GHo ( t Cy C) ( C2,02 (2) S o o763 0.0 36 2 138 6.0 O.o98 lo 2 ii ingeactnt mol Che 4 m) 0,0 36 2 6.516 m mama X lov 76.7 % 6 16