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Draw the structure of aspirin and assign each different type of proton(s) a letter. Then assign the letters to their corresponding peak in the NMR spectrum. The peaks are 2.35ppm, 7.15ppm, 7.35ppm, 7.7ppm, and 8.15ppm.
Helium is compressed isothermally and reversibly at 100 celcius from a pressure of 2 to 10 bar
What is the molarity of an NaCl solution prepared by dissolving 9.3g NaCl in sufficient water to give 350mL of solution.
What is the volume of .885 M hydrochloric acid required to react with (a) 25 mL of .288 M aqueous ammonia (b) 10 g of sodium hydroxide (c) 25 mL of a solution
give a detailed mechanism of the reaction3. there are two possible products from this reaction. give the structure of both and explain why the product you obtained is a major product
what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
An unknown is believed to be an alcohol because the IR spectrum showed broad absorption at 3200-3500 cm-1 and no absorption in the 1700-1750 cm-1 region.
A 550 mL volume of hydrogen chloride gas, HCl, is collcted at 27 degrees C and 790 mm Hg. What volume will it occupy at STP?
A solution is prepared by dissolving 0.16 mol of acetic acid and 0.16 mol of ammonium chloride in enough water to make 1.0 { L} of solution. Find the concentration of ammonia in the solution.
A 100.0-mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. What is the pH of the solution after 100.00 mL of acid have been added to the ammonia solution?Kb = 1.8 × 10-5.
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 77% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9 10-12.]
A solution of ammonia and water contains 4.40×1025 water molecules and 8.30×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
C4H10(g) + O2(g) CO2(g) + H2O(g) Consider the above unbalanced equation. What volume of O2 at 555 mm Hg and 56.0°C is required to produce 285 mL of CO2 at 780. mm Hg and 131°C?
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