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H2(g) + I2(g) = 2HI(g) Write a general equation that expresses the rate of this reaction in terms of the product.
A star is estimated to have a mass of 1 multiplied by 1036 kg. Assuming it to be a sphere of average radius 6.5 multiplied by 105 km, calculate the average density of the star in units of grams per cubic centimeter.
If you mix 10.0 grams of CH3SH with excess CO and 8.65 grams of CH3COSCH3 is produced, what is the percent yield of the CH3COSCH3?
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case
The combustion reaction of propane, C3H8, in the presence of molecular oxygen, O2, is an equilibrium reaction that produces carbon dioxide and water. Express the equilibrium constant for this reaction.
A 155 g sample of an unknown substance was heated from 25.0°C to 40.0°C. In the process, the substance absorbed 5696 J of energy. What is the specific heat of the substance?
Calculate the increase in entropy when 3.50 mol of monatomic perfect gas with Cp = 5/2 R is heated from 250 K to 700 K and simultaneously expand from 20.0 L to 60.0 L.
Use the standard entropies values to calculate ?S° for the reaction 1. S° (J/mole-K): COCl2 (g) 283.7 H2O (l) 69.9 CO2 (g) 213.7 HCl (g) 186.8 1) COCl2 (g) + H2O(l) ?CO2(g) + 2HCl (g)
One gallon of diesel fuel contains about 1.44E8 J of useful energy. The battery in a mobile phone contains about 15300.0 J of energy when fully charged
If the pressure of chloroform vapor in a flask is 154 mm Hg at 25.0°C, and the density of the vapor is 1.25 g/L, what is the molar mass of chloroform?
Aluminum hydroxide and sulfuric acid reaction, Which reagent is the limiting reactant when 0.450 mol Al(OH)3 and 0.550 mol H2SO4 are allowed to react? How many moles of the excess reactant remain after the completion of the reaction? Please explain..
The following choices list some common laboratory solvents. In which of these solvents would LiCl be the LEAST soluble
Looking at the colors of the mixtures containing 5.0, 6.7, and 7.5 mL of EN, would you conclude that you prepared one, two, or all three complex ions when you combined the various mixtures of 2.0 X 10-2 M CuSO4 and 2.0 X 10^-2 M EN
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