Recent activity by BernieceShav

1 answer 46 views

Here's a precise problem for a chemistry student to solve, based on Thermochemistry and the Enthalpy of Desorption Calculations:Given the following data for the adsorption of hydrogen gas on a metal surface:- Initial pressure of hydrogen gas = 1 atm- Final pressure of hydrogen gas after adsorption = 0.2 atm- Temperature = 298 K- Surface area of the metal = 5 cm^2- Enthalpy of Desorption of hydrogen gas on the metal surface = -40 kJ/molCalculate the enthalpy change (in kJ) for the adsorption of hydrogen gas on the metal surface.

answered 6 days ago in ThermoChemistry

1 answer 29 views

Calculate the standard enthalpy change for the reaction in which 50.0 mL 0.20 M HCl(aq) is mixed with 50.0 mL 0.10 M NaOH(aq) in a constant pressure calorimeter. Given that the density of both the solutions is 1.00 g/mL and the specific heat capacity of the mixture is 4.18 J/g°C. Assume the temperature change to be negligible.

answered Feb 3 in Chemical thermodynamics

1 answer 22 views

What is blinding?

asked Jan 16 in Psychology

1 answer 16 views

What is hyperfocus?

answered Jan 14 in Psychology

1 answer 42 views

What is grief therapy?

answered Jan 14 in Psychology

1 answer 33 views

What is the name for creatures such as bears and humans that eat both consumers and producers?

answered Jan 7 in Science

1 answer 53 views

What do the hair cells in the cochlea release when they bend?

asked Jan 6 in Science

1 answer 61 views

What controls the movements of hands and arms?

answered Jan 6 in Science

1 answer 20 views

Timber, medicines, dyes, oils, and rubber are just some of the useful products humans derive from what?

asked Jan 2 in Science

1 answer 24 views

The energy of a wave depends on time as well as what other property of the wave?

answered Jan 2 in Science

1 answer 35 views

Historically, certain bacteriophages have also been used as cloning vectors for making what?

answered Dec 27, 2024 in Science

1 answer 39 views

With what does cytokinins act in concert to stimulate cell division and influence the pathway of differentiation?

asked Dec 27, 2024 in Science

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