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Consider the reaction of salicylic acid and acetic anhydride to produce aspirin. When14.4 g of the salicylic acid is reacted with excess acetic anhydride, 6.26 g of aspirin is formed.
What is the theoretical yield?
What is the percent yield?
A student mistakenly added concentrated (12M) HCl to a sample of unknown, instead of adding 6M hcl as directed. (1) at first, a large amount of light-colored precipitate formed
Why is trichloroethanoic acid a better proton donor than tribromoethanoic acid? Please provide your reasoning and a thorough explanation.
At what temperature does benzene boil when the external pressure is 430 torr? Express your answer in degrees Celsius using two significant figures.
The equilibrium constant for the Haber process is Kc = 0.105. A two liter flash is filled with 0.500 moles of NH3 and allowed to come to equilibrium. What are the values of [NH3], H2] and [N2]
A 150.0 mL sample of a 1.50 M solution of CuSO4 is mixed with a 150.0 mL sample of 3.00 M KOH in a coffee cup calorimeter. The temperature of both solutions and the calorimeter was 25.2°C before mixing and 31.3°C after mixing.
ch4202co22h20 h.889.1kjhfh20-285.8kj hfco2-393.5kjwhat is the standard heat of formation of methane ch4 as calculated
A 25.00 mL sample containing Fe3+ was treated with 10.00 mL of 0.0367M EDTA to complex all of the Fe3+ and leave excess EDTA in solution. The excess EDTA was then titrated, requiring 2.37 mL of 0.0461M Mg2+ standard solution.
Exited rubidium atoms emit a photon of light at 759 nm. What color is this light. Calculate the energy difference in kJ/mol of the tow orbitals that give rise to this emission.
Give the configuration of the valence shell for germanium. The energy needed to heat a 235 mL cup of water is 59.99 kJ. Using your microwave oven, how many moles of photons are needed to heat a 235 mL cup of water?
A piece of iron with a mass of 350g at 300 C is added to 1.00kg of water at 20 C. what is the final temperature of the iron
hydrochloric acid reacts with magnesium to produce hydrogen gas and magnesium chloride. reacting magnesium with excess
why is the symbol of the silicon-oxygen tetrahedron
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