Recent activity by MaryanneKuef

1 answer 35 views

Calculate the standard enthalpy of formation for hydrogen peroxide (H2O2) at 298 K, given that the standard enthalpy change of formation for water (H2O) is -285.8 kJ/mol and the standard enthalpy change of formation for oxygen gas (O2) is 0 kJ/mol.

asked 2 days ago in Chemical thermodynamics

1 answer 51 views

Question: A student wants to quantify the amount of iron (Fe) in a water sample using coulometry. The sample has a mass of 50.0 g and contains iron in the form of Fe(II) ions. The student sets up the electrochemical cell and begins the oxidation reaction, which requires a current of 16.0 A for 1200 s. What is the concentration of Fe(II) ions in the water sample in mol/L?

answered 6 days ago in Analytical Chemistry

1 answer 4 views

What is the difference between socialisation and enculturation?

asked Jan 20 in Psychology

1 answer 44 views

What is the impact of sleep deprivation on cognitive function?

answered Jan 14 in Psychology

1 answer 7 views

What is the significance of gender in understanding grief?

answered Jan 14 in Psychology

1 answer 29 views

What is the concept of ego integrity versus despair in Erikson's psychosocial theory?

answered Jan 10 in Psychology

1 answer 27 views

What year did the soho spacecraft first started to operate?

answered Jan 8 in Science

1 answer 18 views

What is defined as the amount of force acting on a given area?

answered Jan 6 in Science

1 answer 55 views

What broad category of animals is primarily ectothermic and covered with scales that facilitate swimming?

asked Jan 6 in Science

1 answer 27 views

Like a house, your body has what kind of mechanism that responds to changes in temperature?

asked Dec 31, 2024 in Science

1 answer 26 views

In scientific investigations, descriptive statistics are useful for summarizing the characteristics of large what?

asked Dec 31, 2024 in Science

1 answer 59 views

What kind of relationship between glucagon and insulin is vital to managing fuel storage and consumption by body cells?

answered Dec 27, 2024 in Science

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