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Calculate the work done in joules when 50.4 g tin is dissolved in excess acid at 1.04 atm and 20 degrees celsius. assume ideal gas behavior.
Sn (s) + 2H+ (aq) -> Sn 2+ (aq) + H2 (g)
10.0 moles of NH3 and 10.0 moles of H2 are introduced into a 2.00 L flask. At equilibrium, 3.0 moles of NH3 gas remain. Calculate Kc for this reaction.
You are developing a purification protocol for a new, uncharacterized protein. When you apply the resin to a gel filtration column, the protein elutes with the void volume. What is the problem?
the evaporation of water is endothermic as indicated by the followingh2olh2ogheat44.01what minimum mass of water has to
How to determine if HCl is Hydrochloric acid or Hydrogen chloride. Professor said acids should be in the presence of "something"
an automobile radiator holds 4 gal of a 10 antifreeze-water mixture. the of antifreeze should be raised to twenty five
What information does a chemist obtain from the mass spectrum of a compound?
Give the conjugate acid of the following Bronsted-Lowry bases. (Type your answer using the format [OH]- for OH -.) (a) HAsO42- (b) F - (c) S2- (d) OH-
A titration is performed on 1.3245g of a sample of a diprotic acid that is dissolved in 50 ml of water. if 44.10 ml of .6124 M NaOH is required to reach the end-point, what is the molecular weight of the diprotic acid
for the reaction P4+S8=P4S10 what is the maximum amount of P4S10 which could be formed from 17.02 g of P4 and .128 mol of S8?
The mass spectrum of a compound that contains two bromine atoms gives isotope peaks with relative intensities of 1:2:1 for the M, M+2 and M+4 peaks, respectively. Explain why.
At what temperature will a 1.3 g sample of neon gas exert a pressure of 491 torr in a 5.9 L container?
Give the systematic names for the formulas, or the formulas for the names. (Type your answer using the format copper(II) chloride for CuCl2, and using the format CO2 for CO2. Omit the centered dot for hydrates.)
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