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Consider this reaction involving an unknown element X. When 1.800 g of XBr reacts, 0.6758 g of Br2 is produced.
How many milliliters of a solution that is 10.53% H3PO4 (w/w) with a density of 1.1928 g/mL should be diluted in order to make 4.50 L of a 0.100 M H3PO4 solution
A common by-product in this reaction is biphenyl, which is generated through a coupling reaction of phenylmagnesium bromide with unreacted bromobenzene. Draw the structure of biphenyl. Which part of
Hydrogen gas has a Henry's law constant of 7.8 x 10 -4 mol/kgxbar at 25 C when dissolving in water. If the total pressure of gas (H2 plus water vapor) is 1.00 bar over water, what is the concentrati
A common by-product in this reaction is biphenyl, which is generated through a coupling reaction of phenylmagnesium bromide with unreacted bromobenzene. Draw the structure of biphenyl.
Mechanism for bromobenzene + magnesium turnings + annhydrous diethyl ether + methyl benzoate + H2SO4 --> triphenylmethanol
The initial temp of the calorimeter is 21.5 degrees celcius. the H2o is initially 98.1 degrees celcius and final temp of both the H2o and calorimeter is 39.2. Calculate the heat capacity in units of
Calculate the specific heat of the metal in J/g if the final temp is 24.2 degrees celscius. The heat capacity of the calorimeter is 651 j/c
How do I make a 125 mL acetate buffer with a pH of 4.6 by mixing 0.2 M acetic acid and 0.2 M sodium acetate in the correct proportions
Assume that you dissolve 10.7g of a mixture of NaOH and Ba(OH)2 in 229.5 mL of water and titrate with 1.49M hydrochloric acid. The titration is complete after 108.7 mL of the acid has been added.
The density of a 0.438 solution of potassium chromate at 298 is 1.063 .Calculate the vapor pressure of water above the solution. The vapor pressure of pure water at this temperature is 0.0313 . Assu
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar. Use
A solution that is a mixture of 0.4 mol C2H4Br2 and 0.6 mol C3H6Br2 has a vapor pressure of 145 mmHg at a particular temperature. Determine the vapor pressure of pure C3H6Br2 at this temperature,
show the calculation of calculating the volume of 6M NaOH required to react compeletly with 2.00mmol of methyl salicylate
The density of a 0.438 solution of potassium chromate at 298 is 1.063 .Calculate the vapor pressure of water above the solution. The vapor pressure of pure water at this temperature is 0.0313.
Data for the decomposition of hydrogen peroxide at some set temperature T is include below. The rate law depends only on the concentration of H2O2.
An unknown compound contains only carbon, hydrogen, and oxygen (C_x,H_y,O_z). Combustion of 4.50 g of this compound produced 6.60 of carbon dioxide and 2.70 of water. How many moles of carbon,C , we
One liter of 1M acetate buffer at pH = 4.5 is mixed with 600 ml of .5M acetate buffer at pH = 4.8 and then one liter of HCl (0.1M) is added. What is the pH of the final solution?
what volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? how much sulfuric acid was in excess
a smaller amount of A would remain in the water than if the solution were extracted with one 50mL portion of diethyl ether.
Calculate the values for Z1 and Z11 for mercury (Hg) vapor at 40 degrees C at P = 0.10 atm. How does this quantity depend on pressure
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar
Calculate the solubility (in grams per 1.00*10^2mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.S1= 1.2*10^-8 g/(1.00*10^2mL)
Useful data might be: change in enthalpy of melting=6.0 kj/mol; change in enthalpy of vaporization=40.6 kj/mol; cp(h2O (liquid))=75.3 J/mol K; the density of ice is 0.917 g/cm^3 and the density of w