Recent activity by Wendell4581

1 answer 26 views

Calculate the standard enthalpy change for the precipitation reaction: AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)given that the standard enthalpy of formation for AgCl(s) is -127.0 kJ/mol, and for NaNO3(aq) is -467.14 kJ/mol. The molar enthalpy of solution of NaCl and AgNO3 are -3.9 kJ/mol and -19.9 kJ/mol respectively.

answered 2 days ago in Chemical thermodynamics

1 answer 6 views

Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid and sodium hydroxide, given the balanced chemical equation: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) and the enthalpy change of formation values: ∆Hf°(NaCl(aq)) = -407.3 kJ/mol ∆Hf°(H2O(l)) = -285.83 kJ/mol ∆Hf°(HCl(aq)) = -167.2 kJ/mol ∆Hf°(NaOH(aq)) = -469.11 kJ/mol

answered 2 days ago in Chemical thermodynamics

1 answer 75 views

What specific functional group is present in a compound if the UV-Vis spectroscopy analysis reveals an absorption peak at 170-180 nm?

answered 5 days ago in Analytical Chemistry

1 answer 49 views

What novel drug delivery system could be designed for an anti-cancer drug that typically has low bioavailability and improved efficacy, using principles of medicinal chemistry and optimization techniques?

asked 6 days ago in Medicinal Chemistry

1 answer 51 views

Calculate the equilibrium constant (Kc) for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) if the equilibrium concentration of nitrogen (N2) is 0.025 M, hydrogen (H2) is 0.10 M, and ammonia (NH3) is 0.015 M.

asked Jan 23 in Chemical reactions

1 answer 39 views

How can theory inform research in psychology?

answered Jan 20 in Psychology

1 answer 23 views

Who is more likely to act on stereotypes?

asked Jan 20 in Psychology

1 answer 21 views

What is the role of language in cognitive development?

answered Jan 20 in Psychology

1 answer 17 views

When should a therapist use exposure therapy?

asked Jan 17 in Psychology

1 answer 22 views

When studying dissociative disorders, what is dissociative fugue?

answered Jan 17 in Psychology

1 answer 19 views

Which perspective emphasises the role of cultural and environmental factors in shaping behaviour?

asked Jan 15 in Psychology

1 answer 24 views

Which period after birth has the most rapid growth?

asked Jan 8 in Science

1 answer 22 views

What trend is occurring involving the extent of arctic sea ice in summer?

asked Jan 8 in Science

1 answer 38 views

What are the three most common protective devices?

answered Jan 6 in Science

1 answer 29 views

The steropodon may have been an ancestor of which animal?

asked Jan 2 in Science

1 answer 19 views

The shape of the path of an object undergoing projectile motion is called?

asked Jan 2 in Science

...