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Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of 45.90% carbon, 2.73% hydrogen, 26.23% oxygen, 7.65% nitrogen, and 17.49% sulfur. Is the molecular formula of saccharin (a) C14H10O6N2S2, (b) C5H7O3NS, (c) C8H9O2NS, or (d) C7H5O3NS?
How many liters of carbon dioxide are produced when 5.00x10^23 molecules of oxygen react? How many grams of water are produced if 25.0 L of oxygen gas react?
Furoic acid, HC5H3O3, has a Ka value of 6.76 10-4 at 25C. Calculate the pH at 25C for a solution formed by mixing 28.0 mL of 0.260 M HC5H3O3 and 23.0 mL of 0.21 M NaC5H3O3 and diluting the total volume to 125 mL.
Consider the following qualitative analysis scenario and then classify what type(s) of qualitative analysis principle is/are being used. More than one choice may be correct.
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of Hydrogen gas are formed when 48.7g of sodium are added to water?
Acetic acid solution is titrated with NaOH solution. What is the pH at half the euivalence point?
At equilibrium, the flask contains 90.6g HI Calculate the equilibrium constant for the reaction at this temperature.
How many milliliters of .02 M HCl are used to completely neutralize 20.0mL of .01 M NaOH solution?
Using what you know about acid/base chemistry, determine the immediate effect that two 325-mg aspirin tablets would have on the pH of the stomach. Assume your stomach is half a liter in volume.
What is the mass, and the volume, of this seawater that contains 1.00 g of oxygen?
Empirical and Molecular Formulae, The analysis of an organic compound produces the following elemental analysis: % C is 59.999% and % H is 4.476%.
Draw appropriate Lewis structure and VSEPR structure for oxalate anion. What is the O-C-O bond angle? What is the C-C-O bond angle? What is the hybridization of each carbon? On which atoms does the negative charge reside? Draw all resonance struct..
Dissolve a compound with a molecular mass of 272.05 in a 10-mL volumetric flask. You remove a 1.00-mL aliquot, place it in a 25-mL volumetric flask and dilute it to the mark.
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