Recent activity by SofiaDenison

1 answer 29 views

Calculate the total resistance of an electrochemical cell consisting of two half-cells where one half-cell has a copper electrode submerged in a 0.5 M CuSO4 solution, and the other half-cell has a zinc electrode submerged in a 1.0 M ZnSO4 solution. The copper electrode is connected to the zinc electrode through a salt bridge. The resistance of the salt bridge is 22 ohms, and the resistance of the copper and zinc electrodes are negligible.

asked 2 days ago in ElectroChemistry

1 answer 28 views

Calculate the standard enthalpy change for the reaction: CH3OH (l) + 3/2 O2 (g) -> CO2 (g) + 2H2O (l) given the standard enthalpies of formation for CH3OH (l), CO2 (g) and H2O (l) as -238.6 kJ/mol, -393.5 kJ/mol and -285.8 kJ/mol respectively.

asked 2 days ago in Chemical thermodynamics

1 answer 77 views

How can X-ray fluorescence spectroscopy be used to identify the presence of specific elements in a sample with a high degree of accuracy and precision?

asked 6 days ago in Analytical Chemistry

1 answer 45 views

Calculate the amount of chloride ions (Cl-) present in a 0.500 g sample of a sodium chloride (NaCl) solution using coulometry. The electric current used in the process was 2.26 A, and the time taken to completely react the sample was 120 s. The molecular weight of NaCl is 58.44 g/mol, and 1 mol of NaCl contains 1 mol of Cl-.

answered Jan 23 in Analytical Chemistry

1 answer 63 views

What are the factors that can affect mental rotation?

answered Jan 17 in Psychology

1 answer 36 views

When working with communities, what is the term for being sensitive to and accepting of diversity?

answered Jan 17 in Psychology

1 answer 21 views

What is a corpus in discursive psychology?

answered Jan 16 in Psychology

1 answer 9 views

Who proposed the use of atypical antipsychotics in the treatment of schizophrenia?

answered Jan 16 in Psychology

1 answer 5 views

When was the social learning theory first proposed?

answered Jan 16 in Psychology

1 answer 32 views

According to the information processing theory, why is attention important for learning?

asked Jan 16 in Psychology

0 answers 26 views

Who is the psychologist who developed the theory of classical conditioning?

asked Jan 15 in Psychology

1 answer 22 views

How does the social influence theory explain obedience?

asked Jan 15 in Psychology

1 answer 20 views

What is the Gestalt theory of hearing?

answered Jan 13 in Psychology

1 answer 43 views

Who is Noam Chomsky?

answered Jan 13 in Psychology

1 answer 21 views

What type of prokaryotes live in habitats without oxygen?

answered Jan 8 in Science

1 answer 31 views

What is the number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction?

asked Jan 7 in Science

1 answer 27 views

What do vertebrates possess that is made up of repeating bony units?

answered Jan 6 in Science

1 answer 21 views

What can be combined with an amine to form an amide?

asked Jan 6 in Science

1 answer 30 views

Salt hydrolysis is a reaction in which one of the ions from a salt reacts with what?

answered Dec 31, 2024 in Science

1 answer 19 views

Electrons in the "outer shell" are also known as what kind of electrons?

answered Dec 30, 2024 in Science

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