Recent activity by JayProby4741

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Calculate the standard enthalpy change for the phase transition of ice to water at 298 K, given that the heat of fusion of ice is 6.01 kJ/mol and the molar heat capacity of ice and water are 37.0 J/(mol*K) and 75.3 J/(mol*K), respectively.

answered Feb 3 in Chemical thermodynamics

1 answer 52 views

How does acid rain affect the pH levels of freshwater streams, and what chemical reactions occur when acid rain interacts with aquatic organisms?

answered Jan 30 in Environmental Chemistry

1 answer 54 views

How can capillary electrophoresis be used to determine the amino acid composition of a protein sample?

asked Jan 29 in Analytical Chemistry

1 answer 39 views

Calculate the cell potential for the following galvanic cell where a nickel anode is placed in a 1.0M Ni(NO3)2 solution and a silver cathode is placed in a 1.0M AgNO3 solution. The balanced equation for the cell reaction is: Ni(s) + 2 Ag+(aq) → Ni2+(aq) +2 Ag(s) Assume that standard reduction potentials for each half-reaction are as follows: Ni2+(aq) + 2 e- ⇌ Ni(s) E° = -0.25V Ag+(aq) + e- ⇌ Ag(s) E° = +0.80V What is the cell potential at standard conditions (25°C and 1 atm)?

answered Jan 23 in ElectroChemistry

1 answer 79 views

A chemistry student is given an unknown compound and is required to identify its molecular structure using mass spectrometry. How can the student analyze the mass spectrum data to determine the compound's molecular weight and possible functional groups?

answered Jan 22 in Analytical Chemistry

1 answer 51 views

What products are formed when bromoethane reacts with sodium hydroxide in a nucleophilic substitution reaction, and what type of mechanism does the reaction follow?

asked Jan 21 in Organic Chemistry

1 answer 32 views

According to the humanistic theory, what is anxiety?

asked Jan 17 in Psychology

1 answer 29 views

Who proposed the gate control theory?

asked Jan 16 in Psychology

1 answer 26 views

What is a criticism of the feminist perspective?

answered Jan 16 in Psychology

1 answer 32 views

What is the role of the spinal cord in the central nervous system?

asked Jan 14 in Psychology

1 answer 24 views

What is the Gestalt theory?

asked Jan 13 in Psychology

1 answer 30 views

What moves sediments after they have formed?

asked Jan 7 in Science

1 answer 33 views

The testes produce what hormone?

answered Jan 2 in Science

1 answer 38 views

The simplest type of battery contains what?

asked Jan 2 in Science

1 answer 37 views

The ability to maintain a stable internal temperature, despite the climate, is exhibited by members of what animal group?

asked Dec 31, 2024 in Science

1 answer 42 views

If environmental conditions deteriorate, many species can form protective what?

asked Dec 27, 2024 in Science

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