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The Standardization of Hydrogen Ion Determinations. II. A Standardization of the pH Scale at 38°

✍ Scribed by Hitchcock, David I.; Taylor, Alice C.

Book ID
126011859
Publisher
American Chemical Society
Year
1938
Tongue
English
Weight
498 KB
Volume
60
Category
Article
ISSN
0002-7863

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Enthalpy changes for the reaction of HCl(aq) with Na 2 WO 4 (aq) were measured at T = 298.15 K in a HT-1000 calorimeter. The standard enthalpy of reaction for the formation of W 7 O 6- 24 (aq) was calculated on the basis of the experimental results, r H o m (298.15 K) = -(320.7 ± 1.0) kJ • mol -1 .