4101
ADDITIONS AND CORRECTIONS
1960, Volume 64 Robert L. Scott: Thermodynamic Functions for Mixing a t Constant Volume. Page 1242. Equation 2 should read XI(T1‘~
-
+ zz(P2‘f - Vz’) = 8” -
81f)
2181’
- 22VZ’
=
VE
Page 1242. Equat.ion 9 should read ~ I I A= . . . . Page 1244. The unnumbered equation preceding eq 25 should read 2a bK
1 da (%)V
= ;(D)P
- >(bT)p
CY2
- >(%)T
dK
so
Page 1245. In Table VIII, column IIA, TgVE = -23 cal (not -60), and E V E = 295 cal (not 258). Page 1245. I n Table IX, column IIA, TSvE = -23 cal (not -59)’ and 8” = 293 cal (not 257). Page 1247. Equation 31 should read
Page 1247. I n column 1, the second paragraph istarting, “The differences between . . . ’ I ) line 9 should read T ( S I I B~ &AYE) = -25 cal (not +42), . . . .” The fourth and fifth (last) sentences should be stricken.-ROBERT L. scow. 1965, Volume 69 Leonard 9. Silbert, B. F. Daubert, and Leo 5. Mason: The Heats of Combustion, Formation, and Isomerization of Isomeric Monoglycerides. Page 2891. I n column 1, line 6, “AEw, the Washburn Corrections” should read: AEw, the summation EI(T25O - T I ) $ F ( T~ T250),in accordance with the Washburn reduction of the bomb calorimetric data to 25” (ref 34, pp 550-551). Page 2891. I n column 1, line 10, add the following sentence: Washburn corrections for the aliphatic monoglycerides were in the range of 0.0375-0.049090 and averaged 0.0750% for the aromatic derivatives.
+
Page 2891‘ In ‘I1, change to read Page 2891. I n column 2, line 2, AER should read AERO.-LEON.4RD s. SILBERT.
I. Unger : Triplet State of Fluorobenzene. Page 4285. I n column 1, line 13, the value for the reciprocal linear dispersion of the monochromator should be 16 A/”, not 6.6.-1SR.kEL UNGER. 1966, Volume 70 Richard Payne: Structure of the Electrical Double Layer a t A Mercury Electrode in the Presence of Adsorbed Perchlorate Ions. Page 204. Owing to an error in calculation, the values of the specifically adsorbed chage (q’) given in this paper are systematically low by a factor of 0.5916. The ordinate axis in Figure 2 and the abscissa in Figures 3, 5, and 9 should therefore be multiplied by a factor of 1/0.5916. Although this error is carried through the subsequent analysis, its effect is not serious and does not significantly alter the conclusions. Experimental data are available to interested persons on request.-RIcHARD PAYNE.
Julian Heicklen: The Reactions of Ozone with Perfluoroolefins. Page 480. Because of a computational error, the rate constants reported in molar units are incorrect. The corrected values are Olefin
k l , M-1 seo-1
300 46 4.1
CZF4 CaFa CdF, . -
kikslka, M-2
0ec-l
>28 X 106 > 4 . 2 X lo6 0.066 X lo8 JULIAN HEICKLEN
Jan Hermans, Jr. : Experimental Free Energy and Enthalpy of Formation of the a Helix. Page 514. A serious mistake was made in the article, in that it mentions experimental results and conclusions which are improperly attributed to Dr. Gerald Fasman. As a consequence, the paragraph on p 514 concerning these data (“An interesting . . . . , our extrapolation.”) should be disregarded, since it does not represent the viewpoints on this matter of either Dr. Fasman or the author. Recent results obtained by Fasman and coworkers regarding the formation of the p conformation in polyblysine solutions have been described elsewhere (B. Davidson, N. Tooney, and G. Fasman, Biochem. Biophys. Res. Commun., 23,156 ( 1 9 6 6 ) ) . - J ~ ~HERMANS, JR.
B. E. Conway and R. E. Verrall: Ion-Solvent Size Ratio as a Factor in the Thermodynamics of Electrolytes. Page 1476. I n the four equations summarizing the partial molal volume behavior of a series of symmetrical tetraalkylammonium salts, the equation printed for the (n-Pr)*NCl salt in fact referred to the (n-Pr)aNHCl salt which had also been studied. The data for the (n-Pr)lNCl salt correctly referred to elsewhere [B. E. Conway, R. E. Verrall, and J. E. Desnoyers, Z . Physik. Chem. (Leipzig), 230, 157 (1965)l are expressed by the equation
P
=
232.9
+ 2.792~‘”- 3 8 ~
[Also see B. E. Conway, R. E. Verrall, and J. E. Desnoyers, Trans. Faraday SOC.,62, 2738 (1966)l.-B. E. CONWAY. Thomas H. Dannelly: The Direct Estimation of Continuous Molecular Weight Distributions by Equilibrium Ultracentrifuga tion. Page 1863. In eq 21, the E’ in the denominator should be e’. Page 1864. I n eq 28 and 29, a slash should appear above P in the exponential terms. Page 1870. I n the denominator of eq AlOa, the first term in the denominator in the second parentheses should be n (not Xn). Also, the first term in the denominator of the third parentheses should be Zu (not n).-T. H. DONNELLY. John A. Larkin, David V. Fenby, Theodore S . Gilman, and Robert L. Scott : Heats of Mixing of Nonelectrolyte Solutions. 111. Solutions of the Five Hexane Isomers with Hexadecane. Page 1959. In the data reported for the system n-hexane n-hexadecane, one measurement (at zz = 0.7004) was included in the figure and in the calculations leading to numbers reported in the abstract but not in the tables. The differences all lie within experimental error, but for consistency the following corrections must be reported. Page 1961. In Table 111, add an eleventh line: 0.7004, 94.8.
+
Volume 70, Number I2 December 1966
4 102
The excesses, e, in the third column correspond to a revised lea& squares fit and should now read -0.4, 0.2, 0.3, 0.4,0.0,-0.5 -0.2, 0.8, -0.3, 3.4, -0.8 (from the additional measurement). The inclusion of this result yields I@= 113.7 joules mole-'
The J Q U of~Physic& Chemistry
ADDITIONS AND CORRECTIONS
(p 1961 and Table X)&s reported correctly in the abstract.
+
Page 1962. In Table VIII, the first line (n-hexane n-CtsH~) should be revised to read 454.8, -2.5, 0.9, 108.7, -0.6, 0.2.ROBERT L.S C O ~ .
