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Ethene C2H4 can be halogenatd by the following rxn: C2H4+X2=C2H4X2 where X2 can be Cl2, Br2 A) Use the thermodynamic data given to calculate Delta H for the halogenation reaction by Br2 at 31degree celcius.
The enthalpy of formation of compound X is -612 kJ/mol, and the sole product of its combustion has a enthalpy of formation of -671 kJ/mol. What is the enthalpy of combustion of compound X?
If the pressure exerted by ozone, O3, in the stratosphere is 3.0 times 10^- 3 atm and the temperature is 254 K, how many ozone molecules are in a liter?
Calculate the volume of 1.0 x 10-4 M CV+ solution that needs to be added to a 25.0 mL volumetric flask and diluted with deionized (DI)
The enthalpy of combustion of benzoic acid (C6H5COOH) is commonly used as the standard for calibrating constant-volume bomb calorimeters; its value has been accurately determined to be 3226.7 kj?mol.
Molecules which are polar overall exhibit a property called a dipole moment. Which of the following possesses polar bonds but has no dipole moment
the calculated H neutzn be higher, lower, or the same as the literature H neutzn? briefly explain this difference as a result of using only one graduated cylinder for the experiment
Calculate the pH during the titration of 40.00 ml of 0.1000M NaOH Solution after the following additions of base a) 24.00 ml b)39.80 ml c)52.00 ml
Tell what type of chemical reaction is represented by the following chemical equation.
Choose the selection which lists the following substances in order of increasing boiling point (lowest boiling substance listed first)
A three component solution is made by adding 0.300 moles of CH3CN and 0.400 moles of C3H6O to 0.350 moles of CS2. The mixture behaves as an ideal mixture. What is the vapor pressure of the solution?
The standard free energy of activation of another reaction B is 78.70 kJ mol-1 (18.81 kcal mol-1). Assume a temperature of 298 K and 1 M concentration. By what factor is one reaction faster than the other. Which reaction is faster
You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa=4.20) and 0.120 M sodium benzoate. How much of each solution should be mixed to prepare this fuffer
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