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A sprinter set a high school record in track and field, running 200.0 \rm m in 20.7 s. What is the average speed of the sprinter in kilometers per hour?
elemental sulphur occurs in the solid state as 8-membered rings arranged in rhombohedral crystal structure s8 which
the partial pressures of gas A and gas B respectively are 0.298 ATM and .702 atm if 0.130 mol a 3rd gas is added with no change in volume or temperature, what would the total pressure become?
A volume of 18.0 contains a mixture of 0.250 , 0.250 , and an unknown quantity of . The temperature of the mixture is 0 , and the total pressure is 1.00 . How many grams of helium are present in the gas mixture
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ? C. What is the new pressure of the gas in Pa? Answer in units of Pa.
a fixed quantity of gas at 25degc exhibits a pressure of 724 torr and occupies a volume of 5.90 l.a use boyles law to
What are the spectator ions in the solution after completely precipitating an insoluble chloride compound when mixing KCl(aq) and Pb(NO3)2(aq)
A 1.502 gram sample of a compound of aluminum and sulfur is known to contain exactly 0.540 grams of aluminum. Determine the empirical formula for the substance.
Compound 8 has the formula C4H6Cl2O and is reacted with CH3OH to give compound 9. Compound 9 has the 1H NMR signals 2.1(quintet, .8), 2.5(triplet,.8), 3.6(triplet, .8), 3.7(singlet, 1.2). What is compound 9. What is compound 8. Draw structures and..
(b) What is the partial pressure in atm of each component of this mixture if it is held in a 13.70-L vessel at 12°C? O2 mixture of 5.10 g of O2, 7.44 g of N2, and 1.26 g of H2? atm N2 atm H2 atm
describe an incident fire spill explosion etc you have experienced or research one on the internet professional journal
An unknown gas effuses at a rate that is only 0.468 times that of O2 at the same temperature. What is the molar mass of the unknown gas
A flask of unknown volume was filled with air to a pressure of 3.23 atm. This flask was then attached to an evacuated flask with a known volume of 8.00 L, and the air was allowed to expand into the flask.
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