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At 518°C, the rate of decomposition of a sample of gaseous acetaldehyde, initially at a pressure of 363 Torr, was 1.07 Torr s-1 when 5.0% had reacted and 0.76 Torr s-1 when 20.0% had reacted. If the reaction rate is proportional to [A]n , determine the order of the reaction, n.
A solution contains a mixture of Cl- and Br- ions. Can both be positively identified? Briefly explain. Write appropriate equations to support your answer.
A 122 piece of metal is heated to 285 and dropped into 84.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal.
A buffer is made using 49.0 mL of 0.760 M HC3H5O2 (Ka = 1.3 10-5) and 54.0 mL of 0.600 M NaC3H5O2. What volume of 0.20 M NaOH must be added to change the pH of the original buffer solution by 3.5%
How many grams of hydrogen chloride can be produced from 350 grams of sodium chloride and 290 grams of hyroden sulfate if the reaction has a yield of 88%?
You need to produce a buffer solution that has a pH of 5.10. You already have a solution that contains 10 mmol (millimoles) of acetic acid.
How many tons of slag are produced by a modern blast furnace using 2.55×104 of limestone,. Assume that slag is pure calcium silicate () and that all reactions go to completion.
A 240.0 mL buffer solution initially contains 3.0×10-2 M of HCHO2 and 3.0×10-2 M of NaCHO2. What mass of the correct reagent should you add
Unsaturated hydrocarbons are generally more reactive (less stable) than saturated hydrocarbons. Which of the following organic compounds is the LEAST reactive?
react ammonia with a halogenated alkane, will you get only one organic product? Why or why not?
thomas poured 25 ml of 0.60 m hcl into a large bottle. he then added enough water so that the new diluted concentration
If the compound glycine (CH2(NH2)COOH) is oxidized to carbon dioxide and nitrate what is the chemical equation.
Gas boiling matographic analysis of the product showed that the compound was pure, and a calibration of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus
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