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What volume of hydrogen gas is produced when 62.0 g of sodium reacts completely according to the following reaction at 25 oC and 1 atm? sodium (s) + water (l) ----sodium hydroxide (aq) + hydrogen (g)
Titration of an oxalate sample gave the following percentages of percent oxalate: 12.28%, 12.54%, and 12.24%. Calculate the average and the standard deviation
Commercial electrolytic cells for producing aluminum operate at 5 volts and 100,000 Amperes. How long does it take to produce 1000 kilograms of aluminum
A 4.40 g nugget of pure gold absorbed 295 J of heat. The initial temperature was 21.0°C. What was the final temperature?
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
An electron in the n = 4 level of an H atom emits a photon of wavelength 97 nm. To what energy level does the electron move?
Type your question hereA 0.1390-g rock sample of unknown concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes
A graduate student tried to make -fluorophenylmagnesium bromide by adding magnesium to an ether solution of -fluorobromobenzene.
The background section describes why you want the bleach to be far in excess of the dye. State how much greater the bleach should be to be considered in large excess. If the due is 1 x 10-5 M how much can the bleach be diluted before you no longer..
An electric power station annually burns 3.0 x 10^7 kg of coal containing 2.4 percent sulfur by mass. Calculate the volume of SO2 emitted at STP.
If the percent yield of 3NO2 + H2O yields 2HNO3 + NO is 75.0 percent and 45.0 grams of NO2 are consumed in the reaction, how many grams of HNO3 are produced?
The cup is a volume widely used by cooks in the U.S. One cup is equivalent to 225 cm3. If 1 cup of olive oil has a mass of 205 g, what is the density of olive oil in g/cm3?
what will be the pressure of the gasesous water in a 4.25 L flask at 30.0 degrees celcius.
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