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The fluorocarbon compound C2Cl3F3 has a normal melting point of -36.4oC. The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 oC. The specific heat for the solid C2Cl3F3 is 98.0 J/mol o C The specific heat for the liquid C2Cl3F3 is 171 J/mol o C The specific heat for the gas C2Cl3F3 is 126 J/mol oC. The heat of fusion for the compound is 4.652 kJ/mol. The heat of vaporization for the compound is 27.49 kJ/mol. Calculate the heat required to convert 26.78 g C2Cl3F3 from -59.34 oC to 83.11 oC
Calculate the amount of heat trasnferred when 3.55 g of Mg(s) reacts at constant pressure. 2Mg(s) + 02(g) ---> 2MgO(s) heat= -1204kJ
If a sample of barium contains 2.3 x 1023 atoms of barium, how many grams of barium are in the sample?
One way to isolate metals from their ores is to react the metal oxide with carbon as shown in the following reaction: 2MO(s) + C(s) → 2M(s) + CO2(g)
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
How much heat is released when 105 g of steam at 100 Co is cooled to ice at -15Co? the enthalpy of vaporization of water is 40.67 KJ/mol, the enthalpy of fusion for water is 6.01KJ/mol,
If a gas held at constant pressure had an initial volume of 5.00 L and the temperature changed from 35°C to 578 K what would be the final volume of this gas?
If 0.02 moles of PbCl2 is added to 500 dm3 of a 0.01 M salt water solution, what is the Qs value and will PbCl2 precipitate?Ksp = 1.6 x 10-5.
2NO2 + Cl2 = 2NOCl The inital pressure of NO2 was 1.577 atm and the inital pressure of Cl2 was 0.427 atm. At equilibrium, the partial pressure of NOCl is 0.624 atm. Calculate K.
Require to apply to neutralize the acidity that concluded from nitrification and determine how much CaCO 3
Determine the pH and the percentage of fully protonated weak acid/base for each of the solutions listed below:
If you make three serial 1:5 dilutions, using the solution above, what is the concentration of the final solution?
What type of reaction occurs prior to the substitution reaction to form a new good leaving group? And please explain why? a. nothing b. an acid base reaction
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