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Find the value of Kc for the reaction 2 CH4(g) <--> C2H2(g) + 3 H2(g) at 1700 °C if the initial [CH4] = 0.115 M and the equilibrium [C2H2] = 0.04 M.
Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90º bond angle in it.
Calculate the mole fraction of water in this solution, assuming that the KI is completely dissociated. b) Predict the vapor pressure of water over this solution at 25 °C, assuming complete dissociation of the KI.
when 90 ml of .10m fe3 ferric or iron iiinbsp is combined to 10 ml of an scn- thiocyanate also known as
when phosphorus of 31 grams that mixes with o2 71 grams of phosphorus oxide is the product. determine the mass of
Having a really hard time with differentiating between endothermic and exothermic processes. A clearer explanation would be great. I don't understand what the difference is between a gas to a liquid or a liquid to a gas.
How many moles of oxygen are needed to produce 6 mol of Fe2O3 in the following unbalanced equation: Fe + O3 --> Fe2O3
Which of the following compounds will yield 1-hexanol when treated with butylmagnesium bromide followed by acid workup? 1-hexanol
suppose that the 0.00200 m feno33 and kscn solutions were only 0.00100 m. when mixed together as descripbed in the
How many grams of MnSO4 can be prepared from the reaction of 15.0 g of KMnO4 with 22.6 g of H2SO3.
An unknown protein sample gave an absorbance of 0.867 ( corresponding to the average of three replicate analyses of the unknown sample). Calculate the mass (micrograms) of protein in the unknown. Calculate the absolute uncertainty for the answer.
It is heated so that its pressure increases from 1.50 atm to 407 atm. Determine the work done on the gas during this process.
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 8.00 moles of aluminum sulfate Al2(SO4)3 . Express the number of moles of Al, S, and O atoms numerically, separated by commas.
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