2-aminophenol is treated with NaNO₂/HCl at 0-5°C, then added to a solution of phenol in NaOH. Draw the structure of the final product and name the type of reaction.
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b) A 2.0 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, releasing 29.7 kJ of energy. Calculate the molar enthalpy of combustion of ethanol. Answer: A Level H2 Chemistry 2021 Paper 3 Answers
Solidify knowledge of reaction mechanisms (nucleophilic substitution, electrophilic addition, etc.).
The key to answering this is to accurately count the electron domains and apply the principles of VSEPR theory: 2-aminophenol is treated with NaNO₂/HCl at 0-5°C, then
b) Explain how the hybridization of atomic orbitals leads to the formation of sigma and pi bonds. Answer: Hybridization of atomic orbitals results in the formation of sigma bonds through end-to-end overlap of hybrid orbitals. Pi bonds are formed through side-by-side overlap of unhybridized p orbitals.
june 2021 - A-level CHEMISTRY 7405/3 - Physics & Maths Tutor Share public link b) A 2
Moles of F− scaled to 75.0 cm3=1.78 mol200 cm3×75.0 cm3=0.06675 molMoles of F raised to the negative power scaled to 75.0 cm cubed equals the fraction with numerator 1.78 mol and denominator 200 cm cubed end-fraction cross 75.0 cm cubed equals 0.06675 mol Determine Moles of Protons ( H+H raised to the positive power