Recent activity by NikiClint323

1 answer 32 views

How can the presence of heavy metals be effectively reduced or removed from contaminated soil at a former industrial site using chemical remediation techniques?

asked 1 day ago in Environmental Chemistry

1 answer 40 views

Determine the standard enthalpy change for the vaporization of 50g of ethyl alcohol (C2H5OH) at its normal boiling point of 78.4°C. Given that the molar heat of vaporization of ethyl alcohol is 38.56 kJ/mol and the molar mass of ethyl alcohol is 46.07 g/mol.

asked Feb 4 in Chemical thermodynamics

1 answer 51 views

How do carbohydrate-protein interactions and recognition play a role in the immune response to infections?

asked Jan 31 in BioChemistry

1 answer 37 views

How can X-ray diffraction be used to determine the crystalline structure and chemical composition of an unknown sample? Provide a step-by-step explanation of the process involved in conducting and interpreting X-ray diffraction analysis.

asked Jan 30 in Analytical Chemistry

1 answer 51 views

An aqueous solution of 1.0 M HCl is oxidized by a lead anode in a half-cell, while a half-cell with a hydrogen electrode is used as the standard reduction potential. If the electrode potential of the lead electrode is -0.13 V, what is the cell potential of the overall reaction?

asked Jan 22 in ElectroChemistry

1 answer 8 views

A chemistry student wants to determine the percentage of ethanol in a sample of wine. The student takes a 50 mL aliquot of the wine, dries it, and finds the weight of the residual solids to be 0.325 g. The student then distills the rest of the wine, evaporates the distillate to dryness, and finds the weight of the residue to be 2.324 g. Using mass balance calculations, what is the percentage of ethanol in the wine sample?

asked Jan 22 in Analytical Chemistry

1 answer 32 views

According to the embodied cognition theory, what is the relationship between the body and cognition?

answered Jan 20 in Psychology

1 answer 27 views

What is mental representation?

asked Jan 20 in Psychology

1 answer 35 views

What is the borderline personality disorder?

answered Jan 15 in Psychology

1 answer 47 views

What is the role of neurotransmitters in anxiety?

asked Jan 14 in Psychology

1 answer 35 views

Where is multiple fission more often observed?

asked Jan 8 in Science

1 answer 43 views

When magma heats groundwater, it may come to the surface as a hot spring or a what?

answered Jan 8 in Science

1 answer 31 views

What element is the most common element in the universe?

asked Jan 6 in Science

1 answer 10 views

What do you call the splitting of the nucleus of an atom into two smaller nuclei?

asked Jan 6 in Science

1 answer 13 views

Coal, oil and natural gas are types of what formed from the remains of once living organisms?

asked Dec 30, 2024 in Science

1 answer 39 views

Alkynes are what type of compound?

answered Dec 30, 2024 in Science

1 answer 19 views

In animals, how many sets of chromosomes do gametes have?

asked Dec 27, 2024 in Science

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