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What is the rate constant of a a first order half life, when the half life rate is 226s?
When the coal is burned, it produces SO2 emissions which then reacts with calcium dioxide to form solid calcium sulfite. If the coal is burned in a plant that uses 1784 tons of coal per day what is the daily productionof calcium of sulfite in Kg (..
accidentally mixed. A 4.50-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
Draw the mechanism of N-acetylglucosamine hydrolysis a) under alkaline conditions; b) under acidic conditions.
Calculate the final pH when 2.6 mmole NaOH is added to 1 mmole phosphoric acid, given pKa1 = 2.1, pKa2 = 7.2 and pKa3 = 12.4
What combination of a molecular base (that is a neutral compound, not an ion!) and a salt of the conjugate acid of that molecular base should you select to prepare a buffer solution that would maintain a pH of 9.00? For full credit, explain
Show how each of the following errors would affect (increase, decrease or no change) your calculated value for the molar volume of O2 at STP (Presuming that you complete the experiment otherwise correctly).
Calculate the number of grams of propane (C3H8) required to heat all of the water in a 50-gallon hot-water tank from 23.4 degrees C to 65.0 degrees C
Enough of a monoprotic acid is dissolved in water to produce a 0.0197 M solution. The PH of the resulting solution is 6.41. Calculate the Ka for the acid.
What is the product of Furfural + 3-Pentanone and NaOH? (there are 2 possible combinations.)Also how could you alter the reaction conditions to obtain primarily one product or the other
how many grams of CaCl2 should be dissolved in 500.ml of water to make a 0.20m solution of CaCl2
After equilibrium was reached, it was found that 1.30 mol gaseous nitrogen monoxide (nitric oxide)was present. The other product formed in the reaction is sulfur trioxide. Calculate the value of the equilibrium constant , Kc, for this reaction.
a compound has a specific rotation of -39.0. a solution of the compound 0.206 gml has an observed rotation of -7.17
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