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Write a proposed procedure in chart format to determine the identity of the following aqueous solutions: HCl, Na2C2O4, Al(NO3)3, AgNO3, Mn(NO3)2, ZnCl2, H2O2, NH4Cl, Ba(NO3)2, Na2CO3, NA2S2O3. You should include three additional confirming tests that can be used once all the solutions have been identified.
How many atoms are contained in one unit cell of of this element? The atomic mass of the element is 193.5 amu.
12.0 moles of gas are in a 5.00 L tank at 23.9 C. Calculate the difference in pressure between methane and an ideal gas under these conditions.
what is delta s total (entropy change) for the process? latent heat of fusion of water at 0 C is 334 J/g and the specific heat of subcoooled liquid water is 4.226 J/gC.
When 0.0200 mol gaseous NH3 and 0.0180 mol gaseous O2 are placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 2.20Ã-10-3 M. Calculate Keq for the reaction at this temperature.
Write a structural formula for two different isomers of [Co(H2O)2(en)2]Cl2. Indicate the oxidation state of the Co in each case.
A solution is prepared by dissolving 20.2 of methanol in 100.0 of water at 25 . The final volume of the solution is 118 . The densities of methanol and water at this temperature are 0.782 and 1.00 , respectively. For this solution, calculate each ..
Radical formed by H-abstraction from diethyl ether. Showing curved arrows to where it goes.
calculate the molarity of of the following solutions 6.57g of methanol ( CH3 OH) in 1.50 x 10^2 mL solution
Draw a flow chart that illustrates how you would purify an organic compound that is contaminated with inorganic solids that are water soluble
A 27.0 L sample of nitrogen at 7.85 atm and 27 deg Celsius is simultaneously expanded to 63.4 L and heated to 35 deg Celsius. What is the new pressure of the gas
In the preparation of esters, the reaction product was extracted with 5% of sodium bicarbonate solution in the isolation step. Why? What gas was evolved during this washing step? Write a balanced equation for the reaction that produced it.
Determine the pH of the acid solution before the titration begins and the pH at the equivalence point when 50.0 mL of the NaOH has been added. The Ka of HF is 7.2*10^-4
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