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Calculate the empirical formula for each of the following natural flavors based on their elemental mass percent composition.Express your answer as a chemical formula.
A- glucose (a source of energy and metabolic intermediate): C 40.00% H 6.71% O 53.29%
copper (II) iodide and ammonium acetate are soluble salts E. silver bromide and calcium acetate are insoluble salts F. nickel (II) bicarbonate and lead (II) sulfate are insoluble salts G. barium bromide and barium sulfate are insoluble salts H. al..
What 2 analytical methods would you use in order to determine (quantitatively/qualitatively) whether of not there is pesticide present in the water sample. Include how you would use these methods in order to determine the contamination/presence
At the end of 2009, global population was about 6.8 billion people. What mass of glucose in kg would be needed to provide 1200 Cal/person/day of nourishment to the global population for one year
Exactly 100 mL of 0.12 M nitrous acid (HNO2) are titrated with a 0.12 M NaOH solution. Calculate the pH for the following. (a) the initial solution
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7 Hz); ? 4.37 (1H, q, J ..
According to the second law of thermodynamics, the change in the entropy of the universe (DeltaSuniv) during a spontaneous reaction
What happened to the fabric strip when it was treated with the Test Identification Stain? How might this dye be used
The standard free energy of the reaction represents the drive the reaction has under standard conditions to move toward equilibrium. Express the equilibrium constant numerically using three significant figures.
Chloroform has a molar mass of 119.4 g/mol and a density of 1.499 g/cm^3. Estimate the volume of the above mixture using this information.
The sample is titrated to the phenolphthalein endpoint with 15.17 ml of a sodium hydroxide solution. What is the molar concentration of the NaOH solution
A gas at 1 atm and 125degC is expanded from a volume of 150mL to a volume of 4L. The pressure of the gas after expansion is 500 torr. What is the temperature of the expanded gas
cyclohexane-toluene mixture, and then obtain IR spectra for each fraction. How would the IR spectrum of the first 1 mL fraction look different from that of the last 1 mL fraction?
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