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Combustion analysis of an unknown compound containing only carbon and hydrogen produced 2.277 g of CO2 and 1.161 g of H2O. What is the empirical formula of the compound?
Consider 1 mole each of gaseous He and N2 at the same temperature and pressure. The diameter of N2 is 1.7 times that of He. State which gas (if any) has the greater value for: a) ; b) crms; c) average translational energy ; d) Z1; e) Z11; f) de..
A hypothetical lake has a surface area of 23 acres and an avgage depth of 20 ft. Recently there was an accident where a truck spilled 9,000 gals of concentrated H2SO4 (18M) directly into the lake.
Explain why is the preparation of allyl napthyl ether under phase transfer conditions not possible starting with allyl alcohol as well as 2-bromonaphthalene
What is the mole ratio of benzene to n-octane in the vapor above a solution of 20.0% benzene and 80% n-octane by mass at 25C? The vapor pressures of n-octane and benzene at 25 c are 11 torr and 95 torr, respectively
A sprinter set a high school record in track and field, running 200.0 m in 21.6 s. What is the average speed of the sprinter in kilometers per hour
What pressure would the propane gas sample have at 75 mL? i answered 2.00 ATM what is the formula and how to do you calculate to get this answer.
what are the names of the quantity measured by each of seven SI base units and the SI symbols of the unit?
two aqueous solutions of sucrose are mixed. one solution is 0.1488 and has 1.018 the other is 11.50 by mass and has
Assuming it is composed entirely of 206Pb, 207Pb and 208 Pb and the percentages of the two lightest isotopes are equal, calculate the relative percentages of these isotopes in the natural element.
Chemicals available for extractions: CH2CL2, 1M NaOH, 1M HCL and sodium sulfate for drying
A solution is prepared that initially contains 0.10 M Ag+(aq) and 0.80 M NH3 (aq). The Kf for the formation of Ag(NH3)2+(aq) is 1.7 x 10^7. Write the equilibrium equation that represents the formation of this complex ion.
How long does it take to deposit a coating of gold 1.00um thick on a disk-shaped medallion 4.00 cm in diameter and 2.00 mm thick at constant current of 89 A?
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