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Explain how much heat is evolved when 320 g of SO2 is burned as per to the chemical equation shown below?2 SO2(g) + O2(g) 2 SO3(g) 2Ho
A first order reaction has a half life of 26.4 sec. How long will it take for the concentration of the reactant to fall to 1/8 of its original value
An experiment produces 15.0 grams of hydrogen for every 71.0 grams of oxygen used. How many grams of oxygen will you need to produce 6.0 g of hydrogen
The initial DO of the mix is 9.0 mg/L. After 5 days, the DO is 4.0 mg/L. After a long period of time, the DO is 2.0 mg/L, and it no longer seems to be dropping. Assume nitrification has been inhibited so the only BOD being measured is carbonaceous..
Addition of 51.5 mL of 2.238 m of H2SO4 (solution density=1.1243 g/mL) to 51.5 mL of 2.238 M BaCl2 gives a white precipitate. What is the mass of the precipitate in grams
What ratio of concentrations of the molecular base you chose in part a and its conjugate acid would be necesarry to achieve a pH of exactly 10.00?
List these compounds in order of increasing molar solubility in water show your calculations.
3 isotopes of argon occur in nature. Ar-36, Ar-38, and Ar-40. The abundance of each are as follow: 0.34%, 0.07%, and 99.59%.
Calculate the volume of N2 produced at 21 degrees C and 823 mmHg if 60.0 g of sodium azide reacted
What is the most common oxidation state of the chalcogens compared to the halogens? What is an explanation for the difference?
The Bracket series of emission lines falls in the infrared region of the em spectrum, and each line is a result of an electron falling from a higher Bohr orbit to the n=4 level.
What is the pH of a 0.0700 M solution of H2A? What are the equilibrium conecntrations of H2A and A^2- in this solution? pH = ? [H2A} = ? [A^2-] = ?
This solution was back-titrated with a .0440 M Ga3+ solution until all the EDTA reacted requiring 14.0 ml of the Ga3+ solution. What was the original concentration of the V3+ solution
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