7. Aspirin (CsH5Os) is synthesized by reacting salicylic acid (C7H.Os) with acetic anhydride (C.H.O.). The
balanced equation is given below.
C HO3 + C4H603 C9H3O4 + HC2H302
(a) What mass of acetic anhydride is needed to completely consume 4.00 x10 g salicylic acid?
g acetic anhydride
(b) What is the maximum mass of aspirin (the theoretical yield) that could be produced in this reaction?
g aspirin
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Ответ:
A; deciduous
Explanation:
Trees that lose all of their leaves for part of the year are known as deciduous trees. Those that don't are called evergreen trees. Common deciduous trees in the Northern Hemisphere include several species of ash, aspen, beech, birch, cherry, elm, hickory, hornbeam, maple, oak, poplar and willow