Questions by Nydia78K370

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1 answer 40 views

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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1 answer 49 views

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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1 answer 17 views

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

asked Jan 16 in Psychology

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1 answer 3 views

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

asked Jan 15 in Psychology

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1 answer 40 views

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

asked Jan 15 in Psychology

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1 answer 20 views

What is the theory of embodied cognition?

asked Jan 14 in Psychology

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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

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1 answer 24 views

The brain and spinal cord are part of what system?

asked Dec 31, 2024 in Science

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