Chemistry: An Atoms-Focused Approach
14th Edition
ISBN: 9780393912340
Author: Thomas R. Gilbert, Rein V. Kirss, Natalie Foster
Publisher: W. W. Norton & Company
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Dimethyl oxalate, an important pharmaceutical chemical, can be prepared by reacting oxalic acid with methanol. The balanced reaction is shown using line structure representations of the molecules.
Chemical formula:
C2H2O4C2H2O4
CH4OCH4O
C4H6O4C4H6O4
H2OH2O
Name:
oxalic acid
methanol
dimethyl oxalate
water
Molar mass:
90.04 g/mol
32.04 g/mol
118.1 g/mol
18.02 g/mol
If 91.0 g of oxalic acid and 79.0 g of methanol react to form 89.0 g of dimethyl oxalate, what is the percent yield?
A 15.152-gram sample of a hydrate was heated to drive off the water, leaving Al(NO3)3 (s) with a mass of 8.603 grams. Calculate the value of in Al(NO3)3•nH2O (s).
Write the empirical formula of the compound formed by (a) Al3+ and Cl - ions, (b) Al 3+ and O2 - ions, (c) Mg2+ and NO3 ions.
Chapter 4 Solutions
Chemistry: An Atoms-Focused Approach
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