Questions by CarleyK5281

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1 answer 34 views

What is the bond dissociation energy of a carbon-carbon triple bond in ethyne gas (C2H2)? Provide the calculation and units for your answer.

asked Feb 18 in ThermoChemistry

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1 answer 34 views

What specific chemical contaminants commonly present in soil can negatively affect crop yield and quality, and what remediation techniques can be used to mitigate their impact on agriculture?

asked Feb 14 in Environmental Chemistry

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1 answer 60 views

What is the role of metal ions in determining the electronic properties and reactivity of metalloporphyrins and metallophthalocyanines? Provide specific examples of metal ions and their effects on the properties of these compounds.

asked Feb 13 in Coordination Chemistry

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1 answer 73 views

Here's a precise problem for a chemistry student to solve:Using Hess's Law, calculate the enthalpy change for the reaction where 2 moles of methane (CH4) reacts with 4 moles of oxygen gas (O2) to form 2 moles of carbon dioxide (CO2) and 4 moles of water (H2O), given the following known enthalpy changes:ΔH1 = -890 kJ/mol for the reaction: CH4 + 2O2 → CO2 + 2H2OΔH2 = -394 kJ/mol for the reaction: C + O2 → CO2ΔH3 = -286 kJ/mol for the reaction: H2 + (1/2)O2 → H2O

asked Feb 4 in Chemical reactions

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1 answer 36 views

Consider a closed system undergoing an irreversible expansion at constant pressure, calculate the change in entropy of the system if the initial and final volumes are V1 and V2, respectively, and assuming ideal gas behavior.

asked Feb 3 in Physical Chemistry

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1 answer 115 views

Identify the type of isomerism exhibited by the compounds 2-butene and 1-butene, and compare their physical and chemical properties in detail to explain why the two compounds differ in their reactivity towards addition reactions with hydrogen.

asked Jan 30 in Organic Chemistry

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1 answer 136 views

Identify the R or S configurations of each chiral center in the following molecule: [image of a molecule with multiple chiral centers]

asked Jan 21 in Organic Chemistry

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1 answer 31 views

According to the James-Lange theory of emotion, why do we feel emotions?

asked Jan 20 in Psychology

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1 answer 55 views

Why is electroconvulsive therapy used?

asked Jan 20 in Psychology

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1 answer 58 views

When was the Stanford prison experiment conducted?

asked Jan 20 in Psychology

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1 answer 42 views

Why did Harlow's monkey study challenge behaviourist theories?

asked Jan 17 in Psychology

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1 answer 17 views

Where might a cross-cultural psychologist look for the cause of acculturation stress?

asked Jan 17 in Psychology

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1 answer 76 views

According to the Social Impact theory, how does group size affect the influence of others?

asked Jan 16 in Psychology

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1 answer 62 views

When reviewing potential biases in research, what is the difference between selection bias and response bias?

asked Jan 16 in Psychology

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1 answer 39 views

What is the death positivity movement?

asked Jan 16 in Psychology

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1 answer 35 views

What is relatedness?

asked Jan 15 in Psychology

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1 answer 48 views

What is the difference between the nature and nurture approaches to psychology?

asked Jan 14 in Psychology

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1 answer 62 views

What is comparative cognition in animal psychology?

asked Jan 13 in Psychology

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1 answer 45 views

What is the cognitive approach in psychology?

asked Jan 13 in Psychology

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1 answer 63 views

What are the disadvantages of the social theory of anxiety?

asked Jan 13 in Psychology

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