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A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 8 g of coffee beans?
Calculate the standard reaction enthalpy for the oxidation of nitric acid to nitrogen dioxide, 2NO(g) + O2(g) ----> 2NO2(g) from the standard reaction enthalpies of
The density of water vapor at 327.6atm and 776.4K is 133.2gm/dm^3. determine the molar volume Vm of water and the compression factor Z from these data
The Ksp for BaF2 is 2.4 x 10-5. When 10 mL of 0.01 M NaF is mixed with 10 mL of 0.01 M Ba(NO3)2, will a precipitate form
Deduce from these data the corresponding equation and write the formulas for the oxide and sulfate of M. Using the smallest whole number coefficients write the balanced equation for the reaction of the metal M with hydrochloric acid.
Determine the Osmotic Pressure for the following aqueous solutions @ 25 degrees Celsius. (a.) 1.0. M Glucose, and (b.)1.0 M NaCl. Explain which solution has the greater osmotic pressure if any and why.
An optimization from a particular starting structure of a compound C5H10O2 leads to an energy of 25.12 KJ/mol.
calculate the molecular mass of a solute with 8.02 grams of solute in 861 grams of water lower the freezing point to -.430 degree Celsius
By using any titration curve as a reference devise a rule for determining whether or not an acid is protonated in solution. This rule should incorporate both the pH of the solution and the pKa of the acid.
Phosphorus-32 has a half-life of 14.0days . Starting with 4.00 g of 32p , how many grams will remain after 42.0 days?
Calculate the number of moles of B at each time in the table. 0 s mol 40 s mol 80 s mol 120 s mol 160 s mol (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. 0 - 40 s mol/s 40 - 80 s mol/s 80 - 120 s m..
The pH of a 0.175 M aqueous solution of a weak acid is 3.52. What is Ka for this acid
Sodium carbonate ( Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 5.04×103 kg of sulfuric acid solution?
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