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Determine the concentration of lead in a water sample using atomic absorption spectroscopy.
asked
Jan 29
in
Analytical Chemistry
1
answer
44
views
Calculate the enthalpy change for the following chemical reaction: 2NH3(g) + 3O2(g) → 2NO(g) + 3H2O(l) Given the following enthalpy values: ΔH°f (NH3) = −46.11 kJ/molΔH°f (O2) = 0 kJ/molΔH°f (NO) = 90.3 kJ/molΔH°f (H2O) = −285.8 kJ/mol
answered
Jan 23
in
Chemical thermodynamics
1
answer
45
views
A solution contains 0.1 M of an unknown ion X. The electrode potential of this ion X is measured to be +0.60 V versus the standard hydrogen electrode (SHE). Calculate the concentration of ion X in the solution using electrochemical methods.
asked
Jan 22
in
ElectroChemistry
1
answer
22
views
What is alcohol-induced myopia?
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Jan 17
in
Psychology
1
answer
24
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What criticisms have been lodged against normative influence theory?
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Jan 16
in
Psychology
1
answer
20
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Where does pragmatism emphasise the role of values?
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Jan 16
in
Psychology
1
answer
16
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Where can you find empirical evidence for the role of biology in masculinity?
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Jan 15
in
Psychology
1
answer
26
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Why is the evolutionary approach important in psychology?
asked
Jan 15
in
Psychology
1
answer
45
views
What is dialectical behaviour therapy (DBT)?
answered
Jan 14
in
Psychology
1
answer
8
views
What is the relevance of moral development in psychology?
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Jan 14
in
Psychology
1
answer
41
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Is passive coping always maladaptive?
asked
Jan 14
in
Psychology
1
answer
26
views
Who developed the concept of the 'existential attitude'?
answered
Jan 10
in
Psychology
1
answer
25
views
Which muscle is broad, triangular and located on the inferior part of the back where it inserts into the aponeurosis?
answered
Jan 8
in
Science
1
answer
9
views
What did volcanic gases help to form on earth?
asked
Jan 6
in
Science
1
answer
15
views
What are decomposers that feed on the organic matter left over from other decomposers?
asked
Jan 2
in
Science
1
answer
19
views
Light with the longest wavelengths is called what?
asked
Dec 31, 2024
in
Science
1
answer
21
views
Density is defined as the mass of an object divided by its what?
asked
Dec 30, 2024
in
Science
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