Chemistry, 29.03.2021 04:50 jdmXdude3140
A calorimeter has a heat capacity of 320 cal K-1 and contains 718 g of water. Initially the apparatus is at 22.0 oC and contains 1.50 g of ethyl alcohol, C2H5OH, in oxygen. If the heat of combustion of ethyl alcohol is -328 kcal mole-1, what will be the temperature of the calorimeter when combustion is complete?
Answers: 2
Chemistry, 22.06.2019 14:30
Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
Chemistry, 23.06.2019 11:20
Match each state of matter with the statement that best describes it.
Answers: 1
Chemistry, 23.06.2019 12:30
An atom holds 7 electrons. use orbital notation to model the probable location of its electrons. an atom hold 22 electrons. use orbital notation to model the probable location of its electrons. an atom holds 17 electrons. use orbital notation to model the probable location of its electrons.
Answers: 1
Chemistry, 23.06.2019 19:00
Hjulstrom's diagram plots two curves representing (1) the minimum stream velocity required to erode sediments of varying sizes from the stream bed, and (2) the minimum velocity required to continue to transport sediments of varying sizes. this is a modified version of the diagram, showing only the transport segment. stream competence refers to the heaviest particles a stream can carry. according to hjulstrom's diagram stream competence depends on a) particle size. b) stream velocity. c) stream deposition. d) stream channel shape.
Answers: 2
A calorimeter has a heat capacity of 320 cal K-1 and contains 718 g of water. Initially the apparatu...
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