Recent activity by Nydia78K370

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Calculate the heat of hydration for the reaction between anhydrous copper sulfate (CuSO4) and water (H2O), given that the mass of anhydrous copper sulfate used is 10 g and the temperature of the solution increases from 25°C to 35°C. The molar heat of hydration for copper sulfate pentahydrate (CuSO4.5H2O) is -90.1 kJ/mol.

asked Jan 23 in ThermoChemistry

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Calculate the formal charge on the nitrogen atom in the molecule NO3-.

answered Jan 23 in Chemical bonding

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Calculate the equilibrium concentrations of reactants and products for the following reaction at a temperature of 25°C and a pressure of 1 atm:2 NO(g) + Br2(g) ⇌ 2 NOBr(g)Given the initial concentrations are [NO] = 0.20 M, [Br2] = 0.35 M, and [NOBr] = 0.015 M. The equilibrium constant (Kc) for the reaction is 4.8 x 10^2 at 25°C.

asked Jan 23 in Chemical equilibrium

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What is the theoretical foundation for psychodynamic therapy?

answered Jan 20 in Psychology

1 answer 27 views

Who conducted the obedience to authority experiments?

answered Jan 20 in Psychology

1 answer 17 views

Where can we find evidence for the discriminant validity of a theory in organisational psychology?

asked Jan 16 in Psychology

1 answer 3 views

What is a possible weakness of the one-group pretest-posttest design?

asked Jan 15 in Psychology

1 answer 40 views

What is the difference between a just noticeable difference and a difference threshold?

asked Jan 15 in Psychology

1 answer 20 views

What is the theory of embodied cognition?

asked Jan 14 in Psychology

1 answer 20 views

Which theory states that all organisms are composed of one or more cells, the cell is the basic unit of life, and new cells arise from existing cells?

asked Jan 8 in Science

1 answer 44 views

What occurs during the new moon and full moon, due to gravitational pull?

answered Jan 7 in Science

1 answer 25 views

Water, carbon dioxide, and what other element are important agents of chemical weathering?

answered Jan 2 in Science

1 answer 27 views

The ocean is the largest marine biome. it is a continuous body of salt water that is relatively uniform in chemical composition; it is a weak solution of mineral salts and decayed what?

answered Jan 2 in Science

1 answer 24 views

The brain and spinal cord are part of what system?

asked Dec 31, 2024 in Science

1 answer 21 views

Stringed instruments can help show the relationship between tension and what in strings?

answered Dec 31, 2024 in Science

1 answer 23 views

What are the two components of the autonomic nervous system?

answered Dec 27, 2024 in Science

1 answer 10 views

What muscles are used to pump water over the gills?

answered Dec 27, 2024 in Science

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