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Find the gauge pressure (in psi) at the bottom of a freshwater swimming pool that is 13.3 ft deep.
A 28.7 g sample of ethylene glycol, a car radiator coolant, loses 652 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)
Working with triple point, The sublimation pressures of solid chlorine are 352 Pa at -112 C and 35 Pa at -126.5 C. The vapor pressures of liquid Chlorine are 1590 Pa at -100 C and 7830 Pa at -80C
Explain Ammonia and hydrogen chloride gases react to form solid ammonium chloride. A 10.0 L reaction flask contains ammonia at 0.444 atm and 22°C, and 146 mL of hydrogen chloride gas at 7.50 atm and 271 K is introduced.
What is the Cl ? concentration just as Ag2CrO4 begins to precipitate when 2.0 M AgNO3 is slowly added to a solution containing 0.048 M Cl ? and 0.048 M CrO42-
What is the difference between a straight-chain and branched-chain alkane? What is the difference between an alkane and an alkyl group?
Problem- How many grams of phosphine (PH3, molar mass = 34.0 g/mol) can form when 62.0 g of phosphorus (P4, molar mass = 124.0 g/mol) and 78.4 L of H2 gas react at STP?
what is the mass in mg of 2.5 x 1018 atoms of americium-241 present in the smoke detectors if a tiny speck of
Calculate the volume of hydrogen bromide that can be prepared by reacting 10.0 grams of phosphorus tribromide with excess water at 21 degrees C abd 735mmHg
A reaction at 1.83 atm produces 11.9 L of a gas and evolves 91.3 kJ of heat (exothermic). Calculate the change in internal energy of the system (in kJ).
A particular first order reaction has a rate constant of 1.35 times 10^2 s^-1 at 25 degrees C. What is the magnitude of k at 95.0 degrees C if Ea=55.5kj/mol
Two vessels are labeled A and B. Vessel A contains NH3 gas at 73 degrees C and vessel B contains Ne gas at the same temperature. If the average kinetic energy of NH3 is 7.1 10-21 J/molecule at 70 degrees C.
In BPTI the phenylalanine has five aromatic resonances of equal intensity. However after incubation in 6 M urea the same Phe has three resonances, one of which has half the integrated area of each of the others which have the same area.
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