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Problem- After 77.0 min, 32.0% of a compound has decomposed. what is the half-life of this reaction assuming first-order kinetics?
Illustrate structures to prove your interpretation.
Some of the moles of HCl you add will react with sodium carbonate in the first reaction and the rest will react with sodium hydroxide in the second reaction.
Calculate the concentration of the hydronium ion in a 3.433 * 10^(-2) M solution of potassium perchlorate acid to the correct number of significant figures or decimal places.
Calculate the number of 5.70m NaOH must be added to 666 ml of a buffer that contains .0205m C2H4O2 and .0260m C2H3NaO2 to increase the ph to 5.75.
What is the theoretical yield of aspirin if 165 of salicylic acid is allowed to react with 111 of acetic anhydride?
The value of the euro was recently $1.38 u.s. and the price of 1 liter of gasoline in france is 1.35 euro
What mass of isopropyl alcohol (C3H8O) in grams can be melted when a sample absorbs 1575 kJ of heat at its melting point? (Isopropyl alcohol: ?Hfus = 5.37 kJ/mol)
Problem- If calcium carbonate decomposes into calcium oxide and carbon dioxide gas, what is the delta S of the reaction
Hydrogen sulfide is a common and troublesome pollutant in industrial wastewaters. One way to remove H2S is to treat the water with chlorine, in which case the following reaction occurs
If a student starts with 615g of Co(NO3)2 and obtains a 57.3% yield of CoS, what mass of CoS is isolated? Co(NO3)2 +K2S ---> CoS + 2KNO3
While carrying out Part A, some of the solid calcium hydroxide is inadvertently transferred to the beaker and titrated. a) Will more, less, or the same amount of HCl be used for the titration
The solubility product constant of calcium sulfate,CaSO2 is 7.10*10^-5 . How many grams of calcium sulfate can dissolve in 53.5 of pure water
Calculate (a) the maximum non-expansion work, and (b) the maximum work that can be obtained from the freezing of supercooled water at -5 oC and 1.0 atm.
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