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A student measure the volume of a given amount of air in a capped-off syringe as 5 mL at room temperature. The student also measured the volume of air in the syringe in an ice-water bath and a hotwater bath. Which of the following statement would summarize the results?
A. The volume decreased in the ice-water bath and inceased in the hot water bath relative to the volume at room temperature.
B. The volume was constant in all three conditions.
C. The volume decreased in the ice-water bath but did not change in the hot water bath relative to the volume at room temperature.
D. The volume increased in the ice-water bath and decreased in the hot water bath relative to the volume at room temperature.
What alcohol would be most easily dehydrated. One that is on a long chain or a short chain
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 400.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid.
The enthalpy for combustion of benzene (C6H6) is -3270 KJ/mole. How much heat is release on the combustion
When 2.56g of a compound containing only carbon, hydrogen, and oxygen is burned completely, 3.84g of CO2 and 1.05g of h20 are produced. What is the empirical formula of the compound
After you set up the necessary equations. Put into a table your results in summary form as well as write short paragraph summarizing what the results show.
look up the densities of ethanol and water at room T in a habnbook ethanol 0.789 g/cm^3 and water 0.998 plot these two points on a graoh at 0 and 100%H2O
CH3OH can be synthesized by the following reaction: CO(g)+ 2H2(g)-> Ch3OH(g) What volume of H2 gas (in L), measured at 754 mmHg and 88 C, is required to synthesize 27.6g CH3OH
Direct reaction of sodium metal with O2(g) leads to sodium peroxide, Na2O2, which contains a peroxide complex anion and is diamagnetic. Direct reaction of potassium metal with O2(g) leads to potassium superoxide, KO2, which contains a superoxide c..
Give the steps to prepare the column required for the best purification of 0.40g of crude product using silica
How to calculate wavelength of light emitted when transition in hydrogen atom? How caclulate wavelength in nanometers?
50.0 mL of 0.10 M HNO2 (Ka=4.5E-4) is added to 25.0 mL of 0.25 M KNO2 solution. What is the pH of the final solution
Icebergs in the North Atlantic present hazards to shipping, causing the length of shipping routes to increase by about 30 percent during the iceberg season. Attempts to destroy icebergs include planting explosives, bombing, torpedoing, shelling, r..
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