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What are the molecular (formula) masses of the following substances?Express your answer using one decimal place.
a-C6H8O7(citric acid)
b- C4H8O2 (butyric acid, responsible for the odor of rancid butter)
c-CF2Cl2 (a chlorofluorocarbon that destroys the stratospheric ozone layer).
Predict the anode, cathode, and overall cell reactions when an aqueous solution of each of the following salts is electrolyzed in a cell having
The student ended up calculating that he/she has 2.19 ppm of Vitamin B2 in the diluted sample. Calculate the percent of the RDI of Riboflavin satisfied by consuming this tablet
Propose a structure for an amine of formula C4H9N, which liberates a gas when treated with NaNO2 and HCl. The 13C NMR spectrum is as follows
What is the pH at the equivalence point of a weak base-strong acid titration if 20.00 mL of NaOCl requires 28.30 mL of 0.50 M HCl? Ka = 3.0 × 10-8 for HOCl.
At 295 K, Keq = 7.0 x 10-2 for the following equilibrium: NH4HS(s) ? NH3(g) + H2S(g) What is the equilibrium partial pressure (in atm) of H2S.
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 67.7 g of propane, determine the following.
A 0.338-g same of anhydrous sodium carbone, Na2CO3, is dissolved in water and titrated to a methyl orange endpoint with 15.33 mL of a prepared hydrochloric acid solution. What is the molar concentration of the HCl solution
What is the freezing point of a solution that contains 12.0 g of glucose (C6H12O6) in 50.0 g of water (Kf = 1.86°C/m)
How many different tripeptides can be made from two molecules of glycine and one molecule of histidine
A gas filled balloon having a volume of 2.50L at 1.2atm and 25 degrees celsius is allowed o rise to the stratosphere where the temperature and pressure are -23 degrees celsius and 3.00x10^3 atm respectively,. Calculate the final volume of the ball..
At 570. mm Hg and 25C, a gas sample has a volume of 2270 mL. What is the final pressure (in mm Hg) at a volume of 1250 mL and a temp of 175C?
Give the structure of the phosphorus ylide and carbonyl compound you might use to prepare the following alkenes
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