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Given the following thermodynamic data, calculate the lattice energy of CaBr2 (s). Term & Value Delta Hf[Ca(g)] 179; delta Hf[Ba(g)] 112; I1(Ca) 590; I2(Ca) 1145; E(Br) -325.
Assume in state A, V=4.00dm&3, p=1.00atm, t=300K, Va=10Vb, Pc/Pb=5 and Cp,m= 7/2R. Determine the change in entropy of the system and the surroundings for each step of the cycle.
Calculate the mass of PbCl2 that will dissolve in 50 mL of water if the solubility product constant is 1.61*10^-5?
In your house (elevation 950ft above sea level) you have a barometer that registers inches of mercury. On an average day in january, the pressure was 0.966 bar on 700 ft elevation
How many grams of methane gas (CH4) need to be combusted to produce 12.5 L water vapor at 301 K and 1.1 atm? CH4 (g) + 2 O2 (g) -> CO2 (g) + 2 H2O (g)
What is the solubility of nitrogen in the divers blood at the bottom of the dive? b: If you assume the mass of the divers blood is 5.0 kg, how many moles of nitrogen comes out of the divers blood when he comes to the surface?
1. How large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24 hours on a small submarine. The average person needs .84 kg of O2 per day.
a material can exhibit to be considered hazardous. Discuss five hazardous properties and give one example compound for each hazard.
Assuming ideality, how many grams of Xe are needed to inflate a bag with a volume of 867 mL at a pressure of 1.29 bar
A 15 gram piece of iron is heated to a temperature of 47.0 ?C and then placed in contact with a 275 g piece of copper at 20.0 ?C (Cp = 25.46 J/mol-?C). What was the final temperature of the two pieces of metal?
Why is water added following a fischer esterification reaction? After forming an ester in lab we added water and an ether to our product
Phosgene (COCl2) is a toxic substance that forms readily from carbon monoxide and chlorine at elevated temperatures: CO (g)+ Cl2 (g) ? COCl2 (g).
Give the balanced thermochemical equation for the following reactions. show the correct physical state in each equation.
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