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Some students wanted to react a piece of aluminum with sulfuric acid. the students wanted to make sure that they had reliable results and decided to measure their lab temperature and pressure. the LTP were 123004 pascals and 73.141 degrees Fahrenheit. they also made sure that they were going to collect all of the gas that was produced and decided to use a eudiometer to ensure this. if the students added 10.340 g strip of aluminum to the set up which contained 110.00 mL of H2SO4, at 5.500 molar concentration added to 250.00 mL of water, what would be the amount of gas produced and the concentrations of the solution formed? assume a 59.74% yield of the reaction that occurs.
Some other students did the same experiment at their school, but did not know any of the as laws and worked with the molar volume values that related to the conditions at STP. what was the error of their results if they did not use any of the gas laws and the correct LTP? what would be the percent error of their results?
consider a solution formed by mixing 51.0 ml of 0.100 m h2so4 27.0 ml of 0.100 m hocl 25.0 ml of 0.200 m naoh 25.0 ml
Which one of the following pairs is a conjugate acid-base pair?
a sample of KHC2O4 weighing 0.717g was dissolved in water and titrated with 23.47 mL of an NaOH solution. caluculate the molarity of the NaOH solution.
Carbonyl fluoride, COF2 is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
someone investigating the properties of solutions containing carbonate ions prepared a solution containing 5.639g
in one experiment 1.0 mol h2o and 1.0 mol co are put into a flask and heated to 350 c. in a second experiment 1.0 mol
the compound L-erythrose 4-phosphate was dissolved in 20 mL of chloroform and the solution was placed in a cell with a 20.0 cm path length, an observed rotation of 100? was found. Calculate the specific rotation, [?]D for L-erythrose 4-phosphate? ..
Which compound is most likely to be soluble in hexane (C6H14) and why. A) acetone (CH3COCH3) B) benzene (C6H12) C) water D) chloroform (CHCl3) E) ethyl alcohol (CH3CH2OH)
A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
When iron chloride FeCl3 is dissolved in water the solution becomes acidic. The preparation of the Fe(NO3)3 solution and the KSCN solution used 0.5 M HNO3 as the solvent instead of water. Explain why this was done. Hint: Consider Le Chatelier's Pr..
Given a solution of .1 M HEPES in its fully protonated form, and ready access to .1M HCl, .1M NaOH, and distilled water. Describe the preparation of 1L of .025 M HEPES buffer solution, pH 7.8?
a solution of ethanol c2h5oh in water is prepared by dissolving 65.8 ml of ethanol density 0.79 gcm3 in enough water
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