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The average speed of a nitrogen molecule at 25 degrees celsius is 515 m/s. What is the average speed of an ammonia molecule at that temperature?
The concentration of the AlCl3 solution is Blank 1M. AlCl3 + 3AgNO3 ---> 3AgCl + Al(NO3)3 Write answer to three significant figures in decimal form(NOT in scientific notation)
write a program to compute the diameter in centimeters of a steel rod an aluminum rod and a copper rod which can
Metallic chromium can be made by the electrolysis of molten CrCl3. What mass of Cr is formed by passing a current of 7.44 A through molten CrCl3 for 4.10 days? Use F = 96,500 C/mol for Faraday's constant.
an aqueous vinegar sample contains 5.4 acetic acid by mass and has a density of 1.006 gml. calculate the amount of
determine the expression for the rate of the reation in terms of the change in concetration of each of the reatants and products.
an ethylene gas torch reqires 3200 L of gas at 3.00 atm. what will be the pressure of the gas if ethylene is supplies by a 250. L tank?
The physical separation of crude petroleum into fraction is based on boiling point differences among components present.
calculate the molarity of a solution of glycerol made by dissolving 68.000 glycerol at 15 in enough water to make
What are the concentrations of HSO4-, SO42-, and H+ in a 0.14 M KHSO4 solution? (Hint: H2SO4 is a strong acid; Ka for HSO4- = 1.3 10-2.)
In the first half-life of the sample, the total number of disintegrations counted was 2.15 X 1020 . What is the atomic weight of the unknown element
Homes in rural areas where natural gas service is not available often rely on propane to fuel kitchen ranges. the propane is stored as liquid and the gas to be burned is produced as the liquid evaporates.
What is the mass in grams of 2.50 x 10^12 lead (Pb) atoms. Enter your answer in scientific notation.
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