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For the hypothetical first order reaction A yields products, k= 0.0206 s-1. if the initial concentration of A is 0.165 M, how long would it take for A to be 88.7% consumed?
A flask contains both A and B. Both decompose following first order kinetics with half-lives of 50 and 18 minutes, for A and B respectively. If the concentrations of a and b are initially the same, how long will it take for the concentration of a ..
What mass in grams of ethanol is required to (experimentally) produce 100 g of carbon dioxide with an 88.9% yield
What is the pH of a solution made of 10 mL of 0.1 M Nh3 (aq) (K = 1.8 X 10^-5) when mixed with 10 mL of 0.1 M NH4Cl
When 27 mL of a 230 mL stock solution containing 2.2 M BaF2 is diluted to 81 mL, what is the concentration of F- in the new solution?
The O-H stretch of a concentrated solution of an alcohol occurs at a lower frequency than the O-H stretch of a dilute solution.
convert your answer from part a to an equivalent in megatons of tnt the unit used for nuclear bombs. comment on the
Calculate the concentration of the carbonate ion, CO3-, in a 0.010 M H2CO3 solution that has the stepwise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
depending on the type of chemical reaction molecular bromine br2 can be a source of br br- or brmiddota. provide a
When synthesizing aspirin in the lab, what is the purpose of the sulfuric acid in the mixture. ((Mixed 2g salicylic acid, 5mL acetic anhydride, 5 drops concentrated sulfuric acid, added distilled water after heating)).
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C, what is the value of DH°rxn. The molar ma..
a zero-order reaction has a constant rate of 2.50times10-4 ms . if after 60.0 seconds the concentration has dropped to
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 99% of the Mg2+ be precipitated as the hydroxide salt? (Ksp for Mg(OH)2= 8.9 x 10 -12.)
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