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Consider a blend of mass 2 g formed from 1 g of C10H22 and 1 g of C20H42. What are the number average molecular weight and weight average molecular weight of the blend?
The normal respiratory rate for a human being is 15.0 breaths per minute. The average volume of air for each breath is 0.505 L at 20.0°C and 9.95 x 104 Pa. What is the volume of air at STP that an individual breathes in one day (in cubic meters or..
Calculate the energy (joules) required to achieve the transition from the ground state to the first excited state for this system.
The Debye-huckel limiting law is more reliable for 1:1 electrolytes than for 2:2 electrolytes
An open end manometer constructed from a U-shaped tube was operated using an oil which has a density of 1.088 g ml-1. In a particular measurement, the level in the end connected to the gas manifold, on which the experiment was being conducted, mea..
What is the equilibrium constant for K2CrO4 and what is the equilibrium constant for K2Cr2O7?
Suppose that 347 mL of argon is collected over water at 25 ?C and 715 torr. Compute the volume of the dry argon at STP. The water partial pressure at 25 ?C is 23.8 torr.Answer in units of mL
ocat standing in front of a blackboard covered with molecular formulas proceeds to explain how it is the citric acid in grapefruit burns up the fat.
The gas pressure in an aerosol can is 1.8 atm at 25 degrees celsius. if the gas is an ideal gas what pressure would develop in the can if it were heated to 475 degrees celsius?
Concentrated HCl is 36.5% HCl by mass and has a density of 1.18 g/mL.What is the molality?What is the molarity?
calculate the number of tons of carbon dioxide and sulfur dioxide produced by the plant during the year. (b) If 55% of SO2 could be removed by reaction with powdered CaO to form CaSO3, how many tons of CaSO3 would be produced.
The resulting solution required 51.30 mL of 0.08765 M AgNO3(aq) to precipitate the Cl-(aq) and Br-(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the mixture.
how do you find the empirical formula of a compound if they don't give you percentages. For example, if they ask: what is the empirical formula for N2O4?
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