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Equal volumes of H2 and O2 are placed in a balloon and then ignited. Assuming that the reaction goes to completion, which gas will remain in excess?
2H2 + O2 → 2H2O
After the reaction was complete, nitric acid was added to dissolve the AgSO3 but not the AgSe. The Ag+ from the dissolved Ag2SeO3 and the excess reagent required 16.74mL of 0.01370 M KSCN in a Volhard titration. How many milligrms of Se were conta..
Iron has a BCC crystal structure, an atomic radius of 0.124 nm, and an atomic weight of 55.85 g/mol. Compute and compare its density with the actual value of 7.87
Is the lone pair in cycloheptatrienyl anion in sp3 orbital. If so how is it antiaromatic when it does not have an uninterrupted p-orbital
A 0.452 gram sample of bovine serum albumin is dissolved in water to make 0.194 L of solution, and the osmotic pressure of the solution at 25 °C is found to be 0.869 mbar. Calculate the molecular mass of bovine serum albumin.
Of these three separate and individual elements: F, Ra, and As, Arsenic is more likely to form polar bonds. Why and how do you tell
An enzyme catalyzed reaction is carried out in a 50mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 00002 mole of H+ were produced. Explain what is the ratio of TRIS base t..
An analysis of nicotine (MW=162 g/mol) gives 74.0% carbon, 8.65% hydrogen, and 17.3 nitrogen. What is the true Molecular formula for nicotine?
1-hexanol was prepared by reacting an alkene with either hydroboration-oxidation or oxymercuration-reduction. Draw the structure of the alkene that was used to prepare the alcohol in highest yield.
If, in a separate experiment, one-four as much enzyme and twice as much substrate had been combined, how long would it take for the same amount (24 ?mol) of product to be formed
4 NH3 + 5 O2 => 4 NO + 6 H2O How many grams of NH3 will make 2.1 moles of H2O?
The resulting solution required 51.30 mL of 0.08765 M AgNO3(aq) to precipitate the Cl-(aq) and Br-(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the mixture.
at 210degc a solution of 18.26 g of a nonvolatile nonpolar compound in 33.25 g of ethyl bromide c2h5br had a vapor
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