Recent activity by 878041975522

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What is the balanced chemical equation for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas, and how much of each reactant is required to produce a yield of 50g of the product?

answered 5 days ago in Chemical synthesis

1 answer 71 views

What is the concentration of lead (Pb) in a water sample collected from a industrial site using atomic absorption spectroscopy?

answered Jan 30 in Analytical Chemistry

1 answer 58 views

Calculate the irreversible work done by a gas expanding adiabatically from an initial volume of 1 L to a final volume of 5 L against a constant external pressure of 2 atm, assuming that the gas is initially at a temperature of 300 K and that its final temperature is 400 K.

asked Jan 23 in Physical Chemistry

1 answer 50 views

Calculate the enthalpy change for the process of desorption of carbon dioxide from a zeolite adsorbent at a temperature of 298 K, given that the heat of adsorption for carbon dioxide on the same zeolite at the same temperature is -40 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 77 views

What is the IUPAC name and the structure of the ether produced from the reaction between ethyl alcohol and methyl chloride?

asked Jan 21 in Organic Chemistry

1 answer 11 views

What is the role of culture in cognitive development?

answered Jan 17 in Psychology

1 answer 29 views

What structures of the cardiovascular system help regulate body processes by either constricting or dilating?

asked Jan 7 in Science

1 answer 12 views

What is the temperature at which condensation of water vapor occurs called?

asked Jan 7 in Science

1 answer 40 views

What does urine leave the body through?

answered Jan 6 in Science

1 answer 11 views

Worms use a hydrostatic type of what anatomical structure to move through their environment?

answered Dec 27, 2024 in Science

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