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Provide the chemical reaction of an oxidation-reduction reaction that was observed to be spontaneous. Provide a value for the standard cell voltage for this reaction. Is the voltage a positive value as expected for a spontaneous chemical reaction?
What is the gauge pressure of the gas in this mercury manometer if h = 53 mm and the atmospheric pressure is 781 mmHg? What is the absolute pressure of the gas?
If 0.5mL of .3% (mass) ethanol is oxidized with 10mL 0.005M K2Cr2O7 , what volume of 0.05M Fe(NH4)2(SO4)2.6H2O is needed to titrate the excess potassium dichromate
The acid solution gives no precipitate when treated with 0.1 M AgNO3. Identify the components of the solid. EXPLAIN.
Complete the following reaction: Pb-210 decays by ? (beta) emission to form what new necleus? Write the complete nuclear equation.
Determine the mass of carbon dioxide (in g) produced from the complete combustion of 1.40×10-2 g of C6H10 with excess oxygen.
A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 29.0°C. What was the final temperature?
25 mL of 0.10 M HCl is mixed with 25 mL of .43 M NH3. What is the resulting pH?
what must a solute's distribution be if 99% of the solute in a 50.0ml sample is to be extracted with (a) a single 50 ml portion of an organic solvent. (b) two 25 ml portions of the organic solvent
Which of the following molecules is best described as having a nearly tetrahedral distribution of electron density
How many moles of chlorine molecules correspond to 7.40 x 1026 molecules of Cl2?
If the aluminum block is initially at 25^C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol ..
A 633 milliliter NaCl solution is diluted to a volume of 1.34 L and a concentration of 8.00M. What was the initial concentration C1
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