Questions by WiltonRuatok

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1 answer 79 views

Calculate the enthalpy change of the polymerization of styrene using the following information: Reactants: - Styrene: C8H8 (l) - Peroxide initiator: C6H5OOC(CH3)3 (l) Products: - Polystyrene: (C8H8)n (s)- Byproduct: CO2 (g)Given information: - Heat of formation of CO2 (g) = -393.5 kJ/mol - Mass of styrene used = 50 g - Molarity of the initiator solution = 0.3 M - Volume of the initiator solution used = 25 mL - Density of the initiator solution = 0.89 g/mL - The reaction is carried out at a constant pressure of 1 atm and a temperature of 25°C.

asked Jan 23 in ThermoChemistry

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1 answer 47 views

Calculate the change in Gibbs free energy for the electrochemical reaction, given the standard reduction potentials of the reactants and products:Cu2+ (aq) + 2e- → Cu (s)E° = +0.34 VFe2+ (aq) + 2e- → Fe (s)E° = -0.44 V

asked Jan 23 in ElectroChemistry

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1 answer 25 views

How has the study of genetics contributed to our understanding of behaviour?

asked Jan 20 in Psychology

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1 answer 31 views

What three characteristics do waves have?

asked Jan 8 in Science

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1 answer 24 views

Similar to the coil on a stove, changes in what reflect an increase in the temperature of a star?

asked Dec 31, 2024 in Science

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