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Differences in boiling pointsRationalize the difference in boiling point between the members of the following pairs of substances:HF(20oC) and HCl (-85oC)CHCl3 (61oC) and CHBr3 (150oC)Br2 (59oC) and ICl (97oC)
what is the molarity of an aqueous solution containing 360g of glucose in 2.0L of solution.
would a given amount of flourine react with different masses of the two hydrogen isotopes? Does this violate the law of definite proportions.
An empty gasoline can with dimensions 15 cm by 40 cm by 12.5 cm is attached to a vacuum pump and evacuated. if the atmospheric pressure is 14.7 lb/in^2.
At 1000 deg. K, a sample of pure NO2 gas decomposes. 2NO2(g)f/r2NO(g) + O2(g) The equilibrium constant Kp is 158. analysis shows that the partial pressure of O2 is 0.14 atm at equilibrium.
What is the molecular weigh of acetic acid that will form 2 moles of CO2 assuming complete combustion.
what is the maximum amount of P4S10(444.545 g/mol) which could be formed from 17.12 g of P4 (123.895 g/mol) and 0.137 mol of S8 (256.52 g/mol).
A chemical firm was hired to monitor a nearby lake for possible mercury contamination. Several samples were taken at different locations around the lake, including water samples.
A 1.5618-g sample containing sulfate ion was treated with barium chloride reagent, and 0.2321 g of barium sulfate was isolated. Calculate the percentage of sulfate ion in the sample.
Calculate the ratio of HCL molecules in the first excited rotational state to those in the ground state @ 25 C. Assume an equilibrium bond distance of 1.275 angstroms.
Calculate the mass of propylene glycol that must be added to 0.330 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
if 525 mL of gas at 25 degrees celcius is heated to 50 degrees celcius at constant pressure, calculate the new volume.
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