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Inorganic Chemistry
a)You want to prepare 1.00 L of a buffer solution with a pH of 3.5. You are given an 0.45 M solution of nitrous acid, HNO2, and an 0.68 M solution of NaOH. What volume of each of these solutions must be mixed in order to get the desired buffer solution? Use the simultaneous equations method to solve this problem.
b)If the acid used in a. was nitric acid, HNO3, could the same buffer solution be made? Briefly explain.
c)If the buffer solution prepared in a. also contained ~10^–6M Ni^2+ and ~10^–6 M Pb^2+ , could those metal ions be separated from each other by saturating the solution with H2S? Explain your answer by showing the necessary calculations.
b)If the acid used in a. was nitric acid, HNO3, could the same buffer solution be made? Briefly explain.
c)If the buffer solution prepared in a. also contained ~10^–6M Ni^2+ and ~10^–6 M Pb^2+ , could those metal ions be separated from each other by saturating the solution with H2S? Explain your answer by showing the necessary calculations.
Inorganic Chemistry
You add 0.8 mol of acetic acid (PK=4.7) in 10 ml of water to 0.03 mol of lithium acetate in 100 ml of water .what is the new ph?
Inorganic Chemistry
. The diagram on the right (►) represents the
collection of CO2 and H2O molecules formed by
complete combustion of a hydrocarbon. What is the
empirical formula of the hydrocarbon? (carbon –
black, oxygen – red, hydrogen – white)
collection of CO2 and H2O molecules formed by
complete combustion of a hydrocarbon. What is the
empirical formula of the hydrocarbon? (carbon –
black, oxygen – red, hydrogen – white)
Inorganic Chemistry
2.5kg weighing cat climbing at the top of the tree has a potential energy of 986 J. Find the height.
Inorganic Chemistry
A 10.00-mL solution of 0.01500 M Fe3+ is titrated with 0.01500 M EDTA in a solution
strongly buffered at pH = 2.00. Note: pKf for Fe(EDTA)− is −25.11.
strongly buffered at pH = 2.00. Note: pKf for Fe(EDTA)− is −25.11.
Inorganic Chemistry
in 2 C6H5COOH + 15 O2 → 14 CO2 + 6 H2O how much water is produced when 0.1 mol C6H5COOH react in excess oxygen?
Inorganic Chemistry
A stock solution is made by dissolving 51.6 g of Mg3N2 in enough water to make a 46.8 mL solution. 90.4 mL of this Mg3N2 solution are diluted to 200.0 mL. What is the final concentration of Mg3N2?
Inorganic Chemistry
Aluminium Nitrate reacts with Sod. Hydroxide to form Aluminium Hydroxide. What mass of Aluminium hydroxide will ppt.
When 35.5 ml of 0.145 mol/L aq. Aluminium Nitrate is mixed with 44.2mlof 0.215 mol/L Aq. Sod. Hydoxide? Kindly provide solution)
When 35.5 ml of 0.145 mol/L aq. Aluminium Nitrate is mixed with 44.2mlof 0.215 mol/L Aq. Sod. Hydoxide? Kindly provide solution)
Inorganic Chemistry
Caffeine contains 49.48% C, 5.15% H, 28.87% N and 16.49% O by mass. Find the empirical formula and molecular formula of caffeine since its mole mass is 194.2 g / mol. (C:12 O:16 N:14.01 g/mol)
Inorganic Chemistry
Solutions C, D, E, and F are solutions of Zn(NO3)2, Pb(NO3)2, Na2Co3 and Hcl but not necessarily in that order. Using these solutions on each other, carry out chemical tests to identify these solutions. Put your results in a tabular form
