The pH of a 0.1 mol dm-³ solution of a weak acid with a Ka = 10.⁹ will be... (a) 2.5 (b) 5 (c) 10 (d) 1 Which pair of compounds are isomers? (a) (b) (c) (d) 2-methylpentanol and 2,2-dimethylbutanol methanoic acid and ethanoic acid methanol and methanal ethane and ethanol

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please answer both
The pH of a 0.1 mol dm-3 solution of a weak acid with a Ka = 10⁹ will be...
(a)
2.5
(b)
5
(c)
10
(d)
1
Which pair of compounds are isomers?
(a)
(b)
(c)
(d)
2-methylpentanol and 2,2-dimethylbutanol
methanoic acid and ethanoic acid
methanol and methanal
ethane and ethanol
Transcribed Image Text:The pH of a 0.1 mol dm-3 solution of a weak acid with a Ka = 10⁹ will be... (a) 2.5 (b) 5 (c) 10 (d) 1 Which pair of compounds are isomers? (a) (b) (c) (d) 2-methylpentanol and 2,2-dimethylbutanol methanoic acid and ethanoic acid methanol and methanal ethane and ethanol
The following kinetic energy diagrams represent four different reactions, all carried
out at 50°C, with different activation energy thresholds (represented by the vertical
dashed lines). Which reaction would likely have the fastest rate?
(a)
E.
Reaction A at 50°C
Number of
Particles
in
Kinetic Energy
Reaction B at 50°C
Number of
Particles
Kinetic Energy
E,
Reaction C at 50°C
Number of
Particles
ис
na
N
Kinetic Energy
Reaction D at 50°C
Number of
Particles
Kinetic Energy
(b)
(c)
(d)
Transcribed Image Text:The following kinetic energy diagrams represent four different reactions, all carried out at 50°C, with different activation energy thresholds (represented by the vertical dashed lines). Which reaction would likely have the fastest rate? (a) E. Reaction A at 50°C Number of Particles in Kinetic Energy Reaction B at 50°C Number of Particles Kinetic Energy E, Reaction C at 50°C Number of Particles ис na N Kinetic Energy Reaction D at 50°C Number of Particles Kinetic Energy (b) (c) (d)
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