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A bird is flying around the world at a rate of 12.2ft/sec. How many days will it take to complete its journey?(circumference of earth =25,000miles
Assume the equilibrium constant for the reaction of a particular alcohol with a carboxylic acid is 4.3. What is the calculated yield of the ester
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon.
The next items refer to the result of mixing 400. ml of 0.10 M NaOH and 100.0 mL of 0.10 M Mg(NO3)2. Reaction as shown goes essentially to completion.
A chemist found that a reaction did not take place under any set of conditions. If the chemist added a catalyst, would the reaction then occur?
Use two separate t tests to compare results from lab Coat with those from lab A and lab B at the 95% confidence level. Comments on the sensibility of the time test results.
In a solution of dopamine, the density is 1.039 g/mL, experiments show that there is 1.39 mmol dopamine. How many grams of dopamine in the sample. The chemical formula of dopamine is C8H11NO2.
How many mL of H2 (g) measured at STP are produced at a platinum cathode in the electrolysis of H2SO4 (aq) by 4.35 A of electric current in 6.00 min? a. 112 b. 16.3 c. 364 d. 182 e. 91.0
A glucose molecule is labeled at carbon-3 with 13C. How many turns of the citric acid cycle are required to remove the carbon as CO2?
Xanthine is a biological precursor of uric acid. What can you say about the molar absorptivity of xanthine if absorbance measurements of 250
The rate of the reaction will increase if the pressure of the gases increases. The rate of the reaction will remain constant with increasing temperature. The rate of the reaction will increase as time increases.
When sulfuric acid is a component of polluted air, it chemically attacks statues, memorials, and monuments made from limestone. Given that the most common mineral in limestone is calcium carbonate
In making the 3,5-dinitrobenzoate ester derivative, what compounds could be present besides the ester? Indicate any step in the procedure that is intended to remove a possible impurity.
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