Recent activity by KarenSamson

1 answer 57 views

A chemistry student is given the following information: A galvanic cell is set up consisting of a copper electrode in a copper (II) ion solution connected by a salt bridge to a silver electrode in a silver ion solution. The concentration of the copper (II) solution is 0.10 M and the concentration of the silver ion solution is 0.025 M. The measured potential of the cell is 0.66 V. Calculate the resistance of this electrochemical cell.

asked Jan 22 in ElectroChemistry

1 answer 81 views

A certain metal oxide has an enthalpy of formation of -589.3 kJ/mol. When a 5.60 g sample of this oxide is reduced with excess hydrogen gas, the enthalpy change for the reaction is found to be -129.3 kJ/mol. Calculate the enthalpy of reduction per mole of this oxide.

asked Jan 22 in ThermoChemistry

1 answer 33 views

What is the Trans-Theoretical Model of Change TTM ?

answered Jan 20 in Psychology

1 answer 5 views

How does the sexual double standard impact sexual behaviour?

asked Jan 20 in Psychology

1 answer 16 views

According to Sigmund Freud, what is the role of the ego?

asked Jan 16 in Psychology

1 answer 32 views

Who proposed the representational gravity theory?

asked Jan 15 in Psychology

1 answer 23 views

What is the main difference between the biological and evolutionary approaches?

answered Jan 15 in Psychology

1 answer 14 views

What is inattentional blindness?

answered Jan 14 in Psychology

1 answer 20 views

What is the difference between humanistic and psychodynamic theories?

answered Jan 13 in Psychology

1 answer 24 views

What is the sensitive period of development?

asked Jan 13 in Psychology

1 answer 27 views

What is the role of dreams in psychoanalysis?

answered Jan 13 in Psychology

1 answer 21 views

Compare and contrast the validity and reliability of norm-referenced and criterion-referenced tests.

asked Jan 13 in Psychology

1 answer 5 views

What is the significance of the term 'facticity' in Heidegger's philosophy?

asked Jan 13 in Psychology

1 answer 14 views

While the egg is developing, other changes are taking place in the uterus. it develops a thick lining that is full of what?

asked Jan 8 in Science

1 answer 29 views

Sterols are a subgroup of what?

asked Dec 31, 2024 in Science

1 answer 47 views

Some prokaryotes form spores for survival called what?

asked Dec 31, 2024 in Science

1 answer 27 views

Small water bodies often fed by springs are called what?

answered Dec 31, 2024 in Science

1 answer 26 views

Digestive enzymes secreted in the acidic environment (low ph) of the stomach help break down what?

answered Dec 30, 2024 in Science

1 answer 21 views

All metabolic functions carried out by a prokaryote take place in the plasma membrane or where else?

answered Dec 30, 2024 in Science

1 answer 25 views

A rise in blood glucose levels triggers the pancreatic release of what hormone?

answered Dec 30, 2024 in Science

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