PRACTICE 9.11 When 25.0 mL of 1.0 M H 2 SO 4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g • °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate Δ H in kilojoules/mol H 2 SO 4 for the reaction. H 2 SO 4 (aq) + 2NaOH(aq) → 2H 2 O(l) + Na 2 SO 4 (aq)
PRACTICE 9.11 When 25.0 mL of 1.0 M H 2 SO 4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g • °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate Δ H in kilojoules/mol H 2 SO 4 for the reaction. H 2 SO 4 (aq) + 2NaOH(aq) → 2H 2 O(l) + Na 2 SO 4 (aq)
PRACTICE 9.11 When 25.0 mL of 1.0 M H2SO4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g • °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate
Δ
H
in kilojoules/mol H2SO4 for the reaction.
H
2
SO
4
(aq)
+
2NaOH(aq)
→
2H
2
O(l)
+
Na
2
SO
4
(aq)
14 Question (1 point)
Disiamylborane adds to a triple bond to give an alkenylborane. Upon oxidation with OH, H2O2, the alkenylborane will form an enol that tautomerizes
to an aldehyde. In the first box below, draw the mechanism arrows for the reaction of disiamylborane with the alkyne, and in the last box draw the
structure of the aldehyde.
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OH, H2O2
i
See Periodic Table See Hint
answer with mechanisms and steps. handwritten please!
Hello I need some help with Smartwork. For drawing structure B, I know the correct answer is CH₃B₂, but when I try to type it in, it keeps giving me CH₄BH₃ instead. Do you know how I should write it properly? Should I use a bond or something else?
Chapter 9 Solutions
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