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Liquid Nitrogen comes in large cylinders that require special tank carts and hold 120L of liquid at 77K. Given the density of liquid nitrogen of 0.840g/cm3, use the van der Waals equation to estimate the volume of nitrogen of the nitrogen gas after it evaporates at 77K. (hint: because V shows up in 2 places in the van der waals equation, you will have to do an iteration procedure to estimate V. neglect th an2/V2 term initially and calculate V; then substitutue this into the an2/V2 term, evaluate the pressure term, resolve for V, and repeat until the number doesn't change.
A certain metal hydroxide, M(OH)2, contains 32.8oxygen by mass. What is the identity of the metal
For CO2 one of the major absorptions of IR radiation occurs at the wavenumber of 2350cm^-1. what is the energy corresponding to that IR photon
A cube of a gold with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. What is the percent error of the measured density?
it the pH of a strong acid solution nearer to O and a strong base to 14 while a weak adis and base are closer to there perspective approach to 7?
Write the reaction which occurs when BH3 encounters water. Hint: a gas is evolved and boric acid is formed. How does acetone react with BH3?
A mixture of gases contains 1.35 g of N2, 2.64 g of H2, and 2.38 g of NH3. If the total pressure of the mixture is 1.64 atm, what is the partial pressure of each component. PN2 atm PH2 atm PNH3 atm
What is the purpose of washing your cyclohexene with saturated sodium bicarbonate. Why do you think it is more practical to wash with a solution instead of adding solid sodium bicarbonate to your cyclohexene
Calculate the pH at the following points during the titration of 100.0 mL of 0.20 M acetic acid (Ka for acetic acid = 1.8 x 10-5) with 0.10M sodium hydroxide
The student adds 6 M NH3 to CuSO4 solution until the Cu 2+ ion is essentially all converted to Cu(NH3)4 2+ ion. The voltage of the cell goes up to 0.92 V and the Cu electrode is still negative. Find the residual concentration of Cu 2+ ion in the c..
consider the reaction below3 cano32 aq 2 na3po4 aq --gt ca3po42 s 6 nano3 aqhow much precipitate will be produced if
sample of 30.0 ml of krypton gas kr is at 756 mm hg and 25.0 degree celsius. what is the new volume if the pressure is
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm.
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