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What mass of KNO3 would have to be decomposed to produce 21.1 L of oxygen measured at STP? 2KNO3---> 2KNO2 +O2
In the following reaction: A + 2B --> 3C + D the MM(A) = 75 g/mol, MM (B) = 52 g/mole, MM(C)= 87 g/mol. If 250g of A and 310g of B combined, what is the limiting reagent, and what is the theoretical yield of C in gram
Calculate the mass of nitrogen dissolved at room temperature in an 78.0 L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
Which kind of properties are primarily affected by small amounts of impurities in semiconductor crystals
Calculate the freezing point (in degrees C) of a solution made by dissolving 5.89 g of fructose (C6H12O6) in 37.5 g of water. The Kfp of the solvent is 1.86 K/m and the normal freezing point is 273 K.
When an 80.0 liter vessel containing 2.00 mole of NO2(g) was heated to 200oC, 6% of the NO2(g) decomposed to NO(g) and O2(g). What is Kc for the reaction at this temperature?
Describe the preparation of one liter of 0.10 M ammonium cholride buffer, ph=9. starting with solid ammonium cholride pk=9.26 and 1 M NaOH. Describe in detail steps to solve and use correct units please
Problem- A 35.00mL solution of .2500 M HF is titrated with a standardized .1627 M solution of NaOH at 25 degrees C. 1) What is the pH at 0.50mL before the equivalence point
Some 2-methyl-2-butene can be produced as a by- product of tert-pentyl chloride synthesis. Provide two mechanisms (E1 and E2) for its formation.
The pressure was exerted with a piston on molten naphthalene at 95 degrees C. The vapor pressure of naphthalene under 1.0bar is 2.0kPa and its density is 0.962g/cm^3. What is its vapor pressure when the pressure on the liquid is 15MPa
The polymerization rate DP are proportinal to the first power of monomer concentration. What would be the effect of monomer concentration on DP in the thermal polymerization of styrene?
a mixture of ethanol and 1-propanol behaves ideally at 36c and is in equilibrium with its vapor. if the mole fraction
How many grams of magnesium chloride, MgCl2, would be required to prepare a 0.2019 m MgCl2 solution by combining this compound with 0.2050 L of water (assume a density of 1.00 g/mL)?
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