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Because anhydrous sodium sulfate is a relatively inefficient drying agent, a student uses twice as much of this salt as recommended. What are the advantages and disadvantages of adding extra drying agent?
How much forested land would be needed to produce all of the given country's power? (Assume that the given country has little fossil resources.) Is this a sustainable alternative?
the concentration of a dye and concentration of bleach naoh was determined experimentally by using beers law. the rate
A 0.8612 g sample of a mixture consisting of NaBr, NaI, and NaNO3 was analyzed by adding AgNO3 to precipitate the Br and I, yielding a 1.0816g mixture of AgBr and AgI.
If a system has 2.50 × 102 kcal of work done to it, and releases 5.00 × 102 kJ of heat into its surroundings, what is the change in internal energy of the system
A gas sample containing N2 and O2 was found to contain 72% N2. If the pressure of the sample was 2.0 atm, what is the partial pressure of O2?
an old container of koh has been found in the chemistry lab. a 4.00 g sample of this impure koh is dissolved in 30.0
what minimum requirement is needed to obtain reproducible results with a single beam spectrophotometer
The CNOG ion is very unstable and is the reason why the mercuric compound is explosive. On the other hand, mercury cyanate, Hg(NCO)2, is not explosive. The cyanate ion (NCOG) is a stable ion. Use resonance structures and electronegativities to exp..
a solution of sulphide ct10-6m is blended into a 0.4m sodium chloride solution in a closed container. plot a pc-ph
a water tower supplies water through the plumbing in a house. a 2.54-cm-diameter faucet in the house can fill a
One student measure the pH of the following three solution (weak base, conjugate acid and buffer). Using this data, please calculate the pKa and pKb (show calculation).
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C.
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