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the Na formed during the breakdown of NaN3 reacts with Fe2O3. How many grams of Fe2O3 are needed to react with 35.3 g Na?
What mass of CaCO3 will produce 8.0 L of CO2, measured at standard temperature and pressure conditions? Molar mass of CaCO3 = 100. g per mole.
When a 1.50x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed?
What technology or combination of technologies would you recommend for treating the following contaminated air streams?
Given that a sample of air is made up of nitrogen, oxygen and argon in the mole fractions 78% N2, 21% O2 and 1.0% Ar, what is the density of air at sandard temperature and pressure?
When one mole of benzene (C6H6) undergoes complete combustion, 3,170 kJ are released. Calculate the combustion energy of 0.350 kg of benzene?
Density is an example of intensive physical propery of matter. What does this statement mean?
A generic salt, AB, has a molar mass of 243 g/mol and a solubility of 8.90 g/L at 25 C what is the Ksp of this salt
A volume of 10.0 mL of a .00300 M solution of Cl- ions are reacted with .500 M solution of AgNO3-. What is the maximum mass of AgCl that precipitates in grams.
Molecular weight and mole concept explained in this solution, The molecular weight of NaOH is 40. the molecular weight of a widely used buffer, HEPES, is 255
Calculate the pH of a 0.130 M solution of aniline C6H5NH2. The Kb of aniline is 4.30 x 10-10.
Calculate k, Calculate also how long it would take for half of A to react. assume pseudo first order with k'=k[OH-], since [OH-] is in great excess.
When 0.800 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 13C is observed.Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL.
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