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Calculate the standard enthalpy change for the reaction between Aquapentamminecobalt(III) chloride and sodium hydroxide to form Aquapentamminecobalt(III) hydroxide and sodium chloride if the initial concentration of Co(NH3)5Cl3 is 0.1 M and the reaction takes place at 25°C.
answered
Feb 3
in
Chemical thermodynamics
1
answer
57
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What is the concentration of iron (II) ions in a water sample with absorbance of 0.295 at a wavelength of 510 nm, given that the molar extinction coefficient of iron (II) ions is 11,300 M^-1cm^-1 at this wavelength? Use colorimetry to determine the solution.
asked
Jan 30
in
Analytical Chemistry
1
answer
37
views
Calculate the enthalpy change for the dissolution of 10g of NaCl in 100g of water, given that the initial and final temperatures are 25°C and 20°C respectively. The molar mass of NaCl is 58.44 g/mol and the specific heat capacity of water is 4.18 J/(g°C).
answered
Jan 23
in
ThermoChemistry
1
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28
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When was the study on Compassion Fatigue conducted?
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Jan 20
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Psychology
1
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25
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What is the Rowe and Kahn model of successful ageing?
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Jan 16
in
Psychology
1
answer
18
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What is the difference between task-oriented and people-oriented leadership?
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Jan 16
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Psychology
1
answer
38
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Can leaders be trained?
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Jan 14
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Psychology
1
answer
34
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What part of the sweet potato store sugar from photosynthesis as starch?
answered
Jan 7
in
Science
1
answer
36
views
What is is a measurement of the force amplification of a machine?
asked
Jan 6
in
Science
1
answer
39
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What do you call the transfer of thermal energy between particles of matter that are touching?
asked
Jan 6
in
Science
1
answer
11
views
Ginkgo trees are gymnosperms with broad?
answered
Dec 30, 2024
in
Science
1
answer
13
views
Aside from light, incandescent light bulbs also give off what that wastes energy?
asked
Dec 30, 2024
in
Science
1
answer
24
views
What corrosive substances capable of dissolving many metals can cause contamination if spilled?
asked
Dec 28, 2024
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Science
1
answer
33
views
Community interactions are important factors in what?
answered
Dec 28, 2024
in
Science
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