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50.0g of N2O4 is introduced into an evacuated 2.00L vessel andallowed to come to equilibrium with its decomposition product, N2O4-> 2NO2. for this reaction Kc = .133. Once the system hasreached equilibrium, 5.00g of NO2 is injected into the vessel, andthe system is allowed to equilibrate once again. Calculate the mass of NO2 in the final equilibrium mixture.
One of the steps in purifying silicon involves reacting the intermediate silicon tetrachloride with steam to produce high-purity silicon dioxide and hydrogen chloride gas
How many milliliters of a 120 mL solution of 1.51 M BaCl2 must be used to make 16 mL of a solution that has a concentration of 0.3 M Cl-?
In which compound does sulfur have the highest oxidation number a)Na2S2O3 b)NaHS c)H2S d)KHSO3 e) CuSO4
The calorimeter contains exactly 341 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
A solution of ethylene and water has a boiling point of 109.8C. What is the freezing point
What is the pH of the solution which results from mixing 50 mL of 0.50 M NH3 (aq) and 50 mL of 0.50 M HCL (aq) at 25oC (Kb for NH3=1.8X10^-5)
if 24g mg is used and the percentage yield is 95 how many grams of magnesium hydroxide should be
Identify the set of stoichiometric coefficients that balance the reaction equation for the combustion of octane. C8H18+O2--->CO2+H2O
A buffer is made by combining 3.50 L of 0.200M butylamine, C4H9NH2 with 7.50L of 0.100M butylammonium chloride, C4H9NH3Cl. Assuming that volumes are additive
Compute percent C16H34 that reacted to form CO(g) in the process. If experiment carried out at constant V, how much heat would have been released?
What mass of sucrose should be combined with 549 g of water to make a solution with an osmotic pressure of 9.00 atm at 280 K? (Assume the density of the solution to be equal to the density of the solvent.)
C12H22O11(aq) + 3 O2(g) 2 H3C6H5O7(aq) + 3 H2O(l) Determine the mass of citric acid produced when 4.60 mol C12H22O11 is used.
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