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At equilibrium a mixture of N2, H2, NH3 gas at 500?C is determined to consist of 0.628 mol/L of N2, 0.437 mol/L of H2, and 0.175 mole/L of NH3. What is the equilibrium constant for the reaction N2(g) + 3 H2(g) ?? 2 NH3(g) at this temperature?
If the reaction of 2.50 g of aluminum with 2.50 g of oxygen produced 3.50 g of aluminum oxide, What is the % yield of the reaction?
An infant ibuprofen suspension contains 100 mg/5.0 mL suspension. The recommended dose is 10mg/kg of body weight.
4Al + 3O2 = 2Al2O3 determine the percent yield if 124 g Al2O3 are produced when 3.0 moles of Al are reacted
A solution is prepared by adding 60.0 mL of 0.060 M HBr to 180.0 mL of 0.70 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids
Chemical Kinetics - Show that only the reactants of the slow step of a reaction are found in the rate law of the reaction - which of the two steps is slower and which substance (if any) is probably an unstable intermediate?
The frequency doubled output of a Nd3+ YAG laser has a wavelength of 532nm. If each pulse of light has a total energy of 0.550J and the repetition rate of the laser is 30Hz
An aqueous solution containing 0.003 M NaCl and 0.005 M CaCl2 is mixed with the polysaccharide alginate to create a high-viscosity liquid that is a component of a wound dressing
Three gases, hydrogen, helium, and krypton are confined in a 10.0 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 3.00 moles of helium, and 5.00 moles of krypton.
What mass of AlCl3 can be formed from 5.000 mol NiCl2 and 2.000 mol Al?
Fe2O3(s) + 3CO(g)-> 2Fe(s) + 3CO2(g) Based on this equation, how many moles of carbon monoxide (CO) are needed to react completely with 1.75 moles of iron (lll) oxide (FeO3)??
At the equivalence point all carbonate has been converted to bicarbonate NEt ionic equation before the equivalence point: Net ionic equation at the equivalence point
A 32.0-g sample of water at 260. K is mixed with 47.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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