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Problem- Estimate the calcium concentration in a groundwater sample, which has a pH of 5.50. Assume that the groundwater at his location is saturated with CO2 at a partial pressure of 0.1 atm.
Any expert is able to provide answer for this problem in very short time
a voltaic cell employs the following redox reactionsn2aq mns--gt sns mn2aqcalculate the cell potential at 25 under
Question- Determine if the following solutions when mixed are acidic or basic - a) A 225 mL of a 0.5 M hydrofluoric acid solution was mixed with 150 mL of a 0.25 M calcium hydroxide solution. b) 13.4 grams of NH3 gas was bubbled into 634 mL of a 0..
If the ka for the acid phenol (call it HP) is 1.3 x 10-10, what is the pka of the phenolate ion (P-)
a united nations toxicologist studying the properties of mustard gas sch2ch2cl2 a blistering agent used in warfare
Using the following data, a researcher heated a 250.0 gram sample of pure uranium metal in excess oxygen. The resulting oxide was determined to weigh 294.9 grams. Determine the empirical formula that the researcher obtained for the oxide using the..
When 27.5 mL of 0.520 M H2SO4 is added to 27.5 mL of 1.04 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate
What is the nickel ion concentration in a solution prepared by mixing 389 mL of 0.428 M nickel nitrate with 467 mL of 0.323 M sodium hydroxide
The compound aluminum chloride is widely used to control chemical reactions in industry. It is made by the following reaction: Al2O3(s) + 3C(s) + 3Cl2(g)→ 2AlCl3(s) + 3CO(g)
the decomposition of n2o to n2 and o2 is a first order reaction. at 730 degrees celcius the half-life of the reaction
Question- Classify the following pair of compounds as constitutional isomers, geometric isomers, the same compound, or not isomeric.
How many grams of pyridine are there in 100 mL of an aqueous solution that has a pH of 9.00? The Kb for pyridine is 1.9x10^-9
If you had excess chlorine, how many moles of aluminum chloride could be produced from 15.0g of aluminum
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