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The 12.8 gram of sulfur was produced during the thermal decomposition of hydrogen sulfide . How much hydrogen was produced?
a chemical reaction occurs between solutions of rbcl and silver nitrate. this reaction produces a precipitate that is
1.what is the molar enthalpy of neutralization for 50.0ml of 1.0moll naohaq that react with excess 1.0moll
Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 6.1×10?2 M.
Hardness in groundwater is due to the presence of metal ions, primarily Mg2 and Ca2 . Hardness is generally reported as ppm CaCO3 or mmol/L Ca2 . To measure water hardness
How many minutes will it take to electroplate 26.1 g of gold by running 5.00 A of current through a solution of Au+ (aq)
What is the ultraviolet catastrophe? Explain why it was predicted and why this prediction
What is the value of the frequency factor A for this reaction? What is the rate constant for the reaction at 350 degrees celcius?
Consider the following reaction: HC2H3O2 (aq) + H2O (l) = H3O+ (aq) + C2H3O2- (aq) Kc=1.8*10^-5 at 25C If a solution initially contains 0.260M HC2H3O2, what is the equilibrium concentration of H3O+ at 25C
Treatment with chymotrypsin, which cleaves on the carboxy side phenylalanine gave only the tetrapeptide. What is the amino acid sequence for this tetrapeptide?
Carboxylic acids can be made by the hydrolysis of nitriles, which in turn can be made from an alkyl halide. Draw the structures of a starting alkyl bromide and the intermediate nitrile that would be used in the synthesis of phenylacetic acid
Select the IR frequency and number of NMR signals that is diagnostic for either isomer a or isomer b. Isomer A: cyclopentanecarboxamide Isomer B: 6-hydroxyhexanenitrile
Compare the natural chemistry that takes place in the environment with the chemistry that takes place due to man made factors like pollution. Discuss the effect of pollution at the local, regional, national, and global level.
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