Recent activity by StewartLivin

1 answer 25 views

Calculate the standard enthalpy change (∆H°) for the precipitation reaction between aqueous solutions of silver nitrate (AgNO3) and sodium chloride (NaCl) to form solid silver chloride (AgCl), given that 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M NaCl were combined in a calorimeter and the temperature change was recorded as -2.5°C.

asked 2 days ago in Chemical thermodynamics

1 answer 38 views

Calculate the energy required to break a carbon-carbon single bond (C-C) with a bond length of 1.54 Å using the average bond-dissociation energy of 347 kJ/mol for this type of bond.

asked Jan 23 in Chemical reactions

1 answer 54 views

Calculate the bond energy required to break the bond between atoms A and B in a molecule of AB, given the following information: the bond length between A and B is 0.1 nm and the energy required to break one mole of AB molecules is 500 kJ/mol.

answered Jan 23 in Chemical reactions

1 answer 47 views

A student needs to calculate the maximum electrical work that can be obtained from an electrochemical cell of standard hydrogen electrode (SHE) potential -0.76 V and a zinc electrode potential of -0.46 V, when 0.5 moles of zinc metal is oxidized to form zinc ions at 25 °C. Assume that the Faraday constant is 96,485 Coulombs per mole of electrons and the gas constant is 8.314 J/mole.K.

asked Jan 22 in ElectroChemistry

1 answer 22 views

When does the fear appeal strategy work best?

answered Jan 20 in Psychology

1 answer 31 views

Why is the attribution theory important to psychology?

answered Jan 20 in Psychology

1 answer 35 views

What is the main critique of the attachment theory?

answered Jan 15 in Psychology

1 answer 36 views

What is the difference between avoidant coping and approach coping?

asked Jan 14 in Psychology

1 answer 25 views

What is the fight or flight response?

asked Jan 14 in Psychology

1 answer 25 views

What is the difference between free will and determinism?

answered Jan 13 in Psychology

1 answer 36 views

Which gas moves from the blood in the capillaries into the air?

answered Jan 8 in Science

1 answer 26 views

When lactose is present in the cell, what allows the lac genes to be expressed?

answered Jan 8 in Science

1 answer 32 views

What two things collide to cause gas pressure?

answered Jan 8 in Science

1 answer 7 views

How do heavy alkanes affect the skin?

answered Dec 30, 2024 in Science

1 answer 8 views

What is energy from the sun called?

asked Dec 27, 2024 in Science

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