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The reaction 2NO2+O2-->2NO2. NO is second order in O2 and first order in . When [NO]= 4.0×10^-2M and [O2]= 2.5×10^?2M , the observed rate of disappearance of NO is 9.8×10^?5 M/s. What is the rate constant? what would happen if you increase the concentration of NO by a factor of 1.9?
2.9 mol Fe(OH)3 and 7.7 mol H2SO4 react according to the equation 2 Fe(OH)3 + 3H2SO4 ->Fe2(SO4)3 + 6H2O. If the limiting reactant is Fe(OH)3, calculate the amount of Fe2(SO4)3 formed.
Calculate the volume of 1.70 m Na3104 in milliliters that contains 3.00 g of solute.
The tabulated mass of Cl is 35.45 amu. The two dominant isotopes of naturally occurring Cl are 35Cl (34.97 amu) and 37Cl (36.97 amu).
0.0010 mg of H, 0.0116 mg of C, and 0.0310 mg of O. It was also determined that the unknown compound had a molecular weight of 90.0 g/mol.
Calculate the mass of urea that should be dissolved in 225 g of water at 35°C to produce a solution with a vapor pressure of 37.1 mmHg.
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million? Round to the nearest tenth. Don't forget the units
Using the following equation: 2AgNO3+MgBr2->2AgBr+Mg(NO3)2 calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
If the presure of 50.0 mL of oxygen gas at 100oC increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume the temperature remains constant.
What weight of sulfuric acid will be needed to react completely 35.5g of ammonia in the production of ammonium sulfate.
How many calories of heat are necessary to raise the temperature of 350 ml of water from 1.00oC to 5.00oC.
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
How many grams of propanol (C3H7OH, 60.10 g/mol) would be needed to make 750 mL of a solution with an osmotic pressure of 25 atm at 25°C? (R = 0.0821 L/atm/K/mol)
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