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1. Write the reaction for the formation of 1 mole of acetic anhydride from 2 moles of acetic acid. Why is the product described as an "anhydride?"2. The synthesis of aspirin is carried out with 3.25 grams of salicylic acid as the starting material.a) What is the minimum amount of acetic anhydride that must be used?b) If the final amount of aspirin produced represents a 75.0% yield, how much aspirin is produced?
Find out the ( Number of waters of hydration -Molecularweight -Mass of water in one mole -Mass NOT water in mole-Mass percent water )
A 21.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rises from 25.0°C to 62.3°C, determine the heat capacity of the calorimeter. The molar mass of ethanol is 46.07 g/mol.
What volume of 0.0100 M KMnO4 solution is required to oxidize 42.5 mL of 0.0100 M FeSO4 sulfuric acid solution?MnO4- + 8H+ + 5Fe2+ ® Mn2+ + 5Fe3+ + 4H2O
How many grams of FeSO4.(NH4)2SO4.6H2O (MW = 392.14) must be dissolved and diluted to 250.0 mL to prepare an aqueous solution that is 10.00 ppm Fe2+
A gaseous mixture of and contains 37.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 785 ?
Which one of the following electron configuration would corresponds to ground states and which to excited states: A)1s2 2s2 2p1 B)1s22p1 C)1s2 2s2 2p13s1 D)1s2 2s2 2p63s2
Assume that a student places 1.0 mol of solid PbI2 in 1.0 L of water. Part of the lead iodide dissolves according to the following reaction PbI2(s) Pb2+ (aq) + 2I-(aq) After allowing the solution to sit for 30 minutes the student determines that th..
Calculate the new freezing point for a 0.61 m solution of CCl4 in benzene. 2) Calculate the increase in the boiling point, Î"T, for a 1.94 m solution of sucrose (dissolves as a molecule) in water
Using the data on protonation of nucleotides and phosphoric acid species, explain why the double helix of DNA is disrupted when the pH of solution is lowered from 7.0 to 1.0.
Compute the work of expansion(in Joules) accompanying the complete combustion of 1.0 grams of sucrose C 12 H 22 O 11 to CO 2 and (a) liquid water, (b) water vapour at 20 degrees Celsius when the external pressure = 1.0 atm
A buffer that contains 0.347 M of a base, B and 0.483 M of its conjugate acid BH+, has a pH of 8.08. What is the pH after 0.00713 mol of HCl are added to 0.442 L of the solution
calculate the enthalpy change of a reaction using the following values enthalpy of reactant 1 404 kj enthalpy of
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