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How does the Hammond postulate explain: a. the greater selectivity for bromination vs. chlorination of an alkane? b. the fact that the relative reactivity of C-H bonds of an alkane for free radical chain halogenation is 1º>2º>3º
The Label on a one pint bottle of water lists the following components. If the density is the same as pure water and you drink 3 bottles of water in one day, how many milligrams of each component will you obtain?
What mass of HCl is consumed by the reaction of 3.84 mol of magnesium?
A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calcu late the mass of pure acetic acid in 480 mL of this solution at 20 C
If you had an excess chlorine, how many moles of aluminum chloride could be produced from 27.0g og aluminum?
If a 180 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.51.0 , what is the average thickness of the sheet in meters?
A zero order chemical reaction with a rate constant of 0.0178 M/s has an initial concentration of 1.82M. Determine the time required for 80
Suppose you add 4.25 g of naphthalene, C10H8, to 67.9 g of benzene, C6H6, and they form an ideal solution. The vapor pressure of pure benzene is 0.1252 atm at the temperature of the experiment.
Calculate the change in entropy (deltaS) when one mole of diamond is heated from a temperature of 0 K to 400 K at a constant pressure of 1 bar. The temperature-dependent heat capacity of diamond is Cv
calculate the energy absorbed when 2.67 moles of ethyl ether undergo combustion: CH3CH2OCH2CH3(l) + 6O2(g)-> 4CO2(g)+5H2O(l) delta H=+1604 kJ/mol
A 100 mL buffer solution initially has 1.00 M HClO (Ka = 3.0 × 10-8) and 0.75 M NaClO. What is the new pH when this 100 mL of 0.10 M NaOH is added to the initial buffer solution?
Consider the following reaction at constant P. Use the information here to determine the value of Ssurr at 298 K. Predict whether or not this reaction
Calculate the enthalpy of solution in kilojoules per mole of solute. Enter your answer numerically in kilojoules per mole of solute.
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