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A sample of a compound is decomposed and found to contain 1.62 g of carbon and 4.32 g of oxygen. If another sample of the same compound is decomposed and found to contain 8.46 g of oxygen, how many g of carbon must it contain?
An airplane is pressurized to 650 mmHg, Which is the atmospheric pressure at a ski resort at 1.30 * 10^4ft alt?
what is the % mass of acetic acid in the vinegar? Hint: What is the mass percent of aceditc acid titrated and what is the definition of % mass?
Plot NO2 versus time, ln NO2 vs time, and 1/NO2 vs time. Which graph yields the best straight line? what is the reaction order with respect to NO2? Briefly explain
C2H4(g) + H2O(g) C2H5OH(g) 1 mol C2H4, 1 mol H2O at 355K and 1 bar. Using equilibrium constant approach, calculate the equilibrium extent of reaction and the mole fractions
When 2-chloro-2-methylbutane is treated with a variety of strong bases, the products always seem contain two isomers (A and B) of formula C5H10.
Draw the best Lewis structure, and resonance contributors of equal energy (if any), for the molecule H2SO3 1- How many valence electrons are in your Lewis drawing
Calculate the force of attraction between a cation with a valence of +2 and an anion with a valence of -2, the centers
sodium bisulfite is a reducing agent. write a balanced oxidation reduction reaction equation for the reaction that occurs
Gold has a density of 19.3g/ml .suppose you have 100.0 glonkins of gold., what volume in liters will the gold occupy.
a 155ml volume of oxygen gas is collected over water at 23 degrees celsius and a barometric pressure of 770mm. the gas weighs 0.185 grams. what is the pressure of the dry gas?
Determine what volume of N 2 is released at 0.915atm of pressure and at the temperature of 25 degree celcius from a tank full of liquid N 2 ? (d=0.808g/mL)
Calculate the pH after the following additions of the KOH solution (a) 10.0 mL (b) 11.5 mL (c) 15.0 mL (the Ka for CH3COOH = 1.8 x 10^-5)
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