How much aspirin can be made
How much aspirin can be made from 100.0 g of salicylic acid and 100 g of acetic anhydride? If 122 g of aspirin were obtained by the reaction, what is the percent yield?
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A 10.00-mL sample of vinegar, which is an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5062 M NaOH, and 16.58 mL is required to reach the equivalence point. a) What is the molarity of the acetic acid?
A balloon contains 0.140 g of helium at a pressure of 1.00 atm. At what temperature will the balloon have a diameter of 12.8 centimeters. Assume the balloon takes the shape of a sphere. Give your answer in degrees celcius.
a perfect gas undergoes isothermal compression which reduces its volume by 2.20 L. the final pressure and volume of the gas are 3.78x10^3 torr and 4.65 L, respectively. calculate the original pressure of the gas in a torr.
A solution is prepared by mixing 50.0 mL of 0.30 M Pb(NO3)2 with 50.0 mL of 1.4 M KCl. Calculate the concentrations of Pb2+ and Cl ‾ at equilibrium. Ksp for PbCl2(s) is 1.6 10-5.
If the molar enthalpy of water is 6.009 kJ/mol, how much energy is needed for 4.5 moles of ice to melt at STP?
How many moles of permanganic acid could be produced if 0.9240 moles of manganese(II) oxide, 2.280 moles of lead(IV) oxide, and 2.009 moles of nitric acid are combined and react to completion?
If a sodium hydroxide solution were added to a solution containing lead(II) ions, sodium ions, nickel(II) ions and potassium ions, which ion(s) would remain in the supernatant?
What is the final temperature when 125 g of iron at 92.3 °C is dropped into 50.0 g of water at 27.7 °C? The specific heat of iron is 0.444 J g-1 °C-1 and the specific heat of water is 4.184 J g-1 °C-1.
An empty flask has a mass of 123.4 g. When the flask is filled with water, the mass is 211.6 g. If 10.0 g of zinc. what is the new mass of the flask?
Calculate the energy levels of the π-netwrok in octatetraene, C8H10, using the particle in the box model. To, calculate the box length, assume that the molecule is linear and use the values 135 and 154 pm for C=C and C-C bonds. What is the wave
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Using string methods or slicing, create a variable called American can convert the British word to its American spelling.
Who are most at risk of contracting Monkeypox? How can Monkeypox be prevented and/or treated? Conclusion--what is your prediction for Monkeypox in NYC?
Describe what is involved in purchasing, receiving, storage, and inventory control. Differentiate quality grades and yield grades.
Review the fact-finding techniques discussed in the Connolly text - although most situations may allow the use of all the techniques
Based on the sample sentences, what can you say about the use of the English language? Is the student using that standard grammar? Explain.
Between the Anti-Wiretapping Law and Data Privacy Act of 2012, why do you think it's a priority to protect one's personal information?
What types of food do you see being sold or served? Is the food prepared, packaged, fresh, canned, etc? Where is this place located?