Get Problems in Physical Chemistry PDF

By A.E. Somerfield (Auth.)

ISBN-10: 0080038107

ISBN-13: 9780080038100

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230 kcal mole" 1 (evolved) 64. —25 kcal mole -1 (evolved) 65. —299 kcal mole" 1 (evolved) 66. —6-03 kcal mole - 1 (evolved) 67. —18-7 kcal mole -1 (evolved) 68. —37 kcal mole - 1 (evolved) 70. —767 kcal mole -1 ; ethanol —767; dimethyl ether —756 C. IONKATION ENERGY, ELECTRON AFFINITY AND ELECTRONEGATIVITY 82. 6-6 eV (absorbed) 29 D. KINETIC THEORY AND MOLECULAR WEIGHTS 91. 68-7 cm from NH 3 end 95. 9-5 g l - 1 ; 100-027° 96. 513 97. 619 98. 494 99. 90 100. 36 103. W. in water 20 ·2; in cyclohexane 51 ·9 104.

An organic acid is shaken with benzene and water. Samples are taken and titrated; the concentration in the benzene layer is found to be 0 -20 M and in the water layer 0 · 10 M. The experiment is repeated with different amounts of acid, and different volumes of liquids, and the pairs of concentrations found to be 0-51, 0-16; 0-80, 0-19; 0-12, 0-75. Comment on these values and say what they reveal about the state of the acid in benzene. 187. Compare the behaviour of a solute distributed between two liquids with that of a slightly soluble gas in contact with a liquid.

78· 2 per cent dissociated into 3 ions 126. 30-6 per cent F. IONIC EQUILIBRIA, pH, INDICATORS AND SOLUBDHTY PRODUCTS 128. 1-44 acid; 8-89 alkaline 129. (a) 1-62, (b) 8-33; (a) 10"«, (b) 3-2 X 10-», (c) 15-9, (d) 5-0 x 10-" 130. pH 5 131. 10- 12 mole l- 1 ; 6-5 132. (a) 5-0 x 10-*, (b) 1-3 x 10"5, (c) 2-5 X 10"11 133. 1-8 X 10-10 134. 0-37 per cent; pH 3·43 135. 10-7 136. 73 per cent 137. 0-93; 2-9; 9·3 per cent 138. Lactate8-43, 7-43; borate 11-1, 10-1 139. 7, 11-8 30 141. 142. 143. 144. 146. 147.

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Problems in Physical Chemistry by A.E. Somerfield (Auth.)


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