Recent activity by DorisMcWhae

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Calculate the standard electrode potential of the electrode in the given electrochemical cell: Fe3+(aq) + 3e- → Fe(s) E°= -0.04V Ag+(aq) + e- → Ag(s) E°= 0.80V

answered 2 days ago in ElectroChemistry

1 answer 56 views

How can Raman spectroscopy be used to determine the presence of a specific compound in a mixture of similar compounds? Specifically, how can the unique Raman spectra of the target compound be identified and distinguished from those of other compounds in the mixture, and what is the minimum concentration of the target compound that can be detected using this technique?

answered Jan 29 in Analytical Chemistry

1 answer 44 views

Calculate the heat of sublimation for iodine if 25 g of iodine is heated from its solid form at -110°C to its gaseous form at 184°C. The molar heat capacity of iodine (s) is 54.44 J mol⁻¹ K⁻¹ and the molar heat capacity of iodine (g) is 36.57 J mol⁻¹ K⁻¹. The molar enthalpy of fusion of iodine is 15.52 kJ mol⁻¹.

answered Jan 23 in ThermoChemistry

1 answer 53 views

Calculate the Gibbs free energy change at standard conditions for the reaction:2 H2(g) + O2(g) → 2 H2O(l)Given: ΔHºf[H2O(l)] = -285.8 kJ/mol, ΔHºf[H2(g)] = 0 kJ/mol, ΔHºf[O2(g)] = 0 kJ/mol, and ΔSº[H2O(l)] = -69.9 J/K·mol.

asked Jan 23 in Chemical thermodynamics

1 answer 24 views

Who is associated with discourse analysis?

answered Jan 15 in Psychology

1 answer 27 views

What is the cognitive theory of mood disorders?

answered Jan 14 in Psychology

1 answer 38 views

What is gender equity?

answered Jan 14 in Psychology

1 answer 6 views

When does exchange of dna segments happen between non-sister chromatids of homologous chromosomes?

asked Jan 8 in Science

1 answer 54 views

What kind of mouthparts do aphids have?

answered Jan 7 in Science

1 answer 18 views

What is the name of the outer part of the adrenal gland located above the kidneys?

answered Jan 7 in Science

1 answer 47 views

What do industries use water to generate?

asked Jan 6 in Science

1 answer 21 views

The wrist and base of the hand are formed by what series of small bones arranged in distal and proximal rows?

answered Jan 2 in Science

1 answer 25 views

Animals that are endotherms or ectotherms are distinguished by the ability to maintain a constant what?

answered Dec 30, 2024 in Science

1 answer 20 views

Some animals prepare for the long winters by storing food and going dormant, a behavior called what?

asked Dec 27, 2024 in Science

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