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A precipitate of AgCl and AgBr weighs 0.4066 g . on heating in a current of chlorine , the AgBr is converted to AgBr and the mixture loses 0.0725 g in weight , find the % of Chlorine in original solution.
Problem- What would the differences be between the IR spectras of 2-nitrophenol and 4-nitrophenol? What about the differences between their NMR spectras
Calculate how much you would obtain wiht 1 x 0.6 mL extraction. 3. Which method is more efficient.
Calculate the pH at the equivalence point for the titration of 0.250M methylamine (CH3NH2) with 0.250M HCl. Kb of methylamine is 5.0x10^-4,
Consider the reaction Pb(s) + 2H^+(aq) ? Pb^2+(aq) + H2(g). If the hydrogen gas pressure is maintained at 1.00 atm and the lead(II) ion concentration is 0.025 M, find the pH at which this reaction is at equilibrium.
A ten L Dewar containing liquid nitrogen tips over in your car while you are transporting it. If it completely vaporizes what volume of Nitrogen gas will be produced at 1 atm and 20 degrees C
Question- From its electronic configuration, predict which of the first 10 elements would be most similar in chemical behavior to the as yet undiscovered element 165.
If you are given a 0.25 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced
A lake with a cross sectional- area of 1km^2 and a depth of 125m has an euphotic zone that extends 15m below the surface what is the maximum weight of the biomass (in grams of carbon) that can be decomposed by aerobic bacteria
What weight of solid PbCl2 is formed when 225ml of a .2424M solution of sodium chloride is mixed with 225 ml of a .4242 M solution Pb(NO3)2
Compute the volume (in mL) of liquid pure sulfuric acid (H2SO4) required to make 100L of an aqueous solution with a pH of 2.7. Explain what is the molar concentration of the solution. The density of sulfuric acid is 1.84g/mL
Into how many tubes can you dispense 450microliters of buffer using a micropipette set at 2.5 microliters
Which starting material is the limiting reagent in this procedure? Which reagent is used in excess? How great is the molar excess (how many times greater)?
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