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Hydrogen iodide decomposes according to the reaction 2HI(g)H2(g) + I2(g) A sealed 1.50 L container initially holds .00623 moles of H2, .00414 moles of I2, and .0244 moles of HI at 703K. When equilibrium constant is reached, the concentration of H2(g) is .00467 M. What are the concentrations of HI(g) and I2(g)?
The specific heat capacity of solid copper metal is 0.385 J/g-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0C to 77.5C?
In the reaction below, 6.15 atm each of H2 and I2 were placed into a 1.00 L flask and allowed to react: H2(g) + I2(g) 2 HI(g) Given that Kc = 45.5, calculate the equilibrium pressure of H2.
What mass of glucose (C6H12O6 ; 180.2 g/mol) is needed to prepare 2.25 L of a solution that has the same osmotic pressure as blood at 37 °C ? (R = 0.08206 L·atm/mol·K)
A mixture of CaCO3 and CaO weighing 0.665 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.500 g.
Consider an aqueous solution that is 0.934 M in FeCl2 (MW = 126.752 g/mol) with a density of 1.31 g/mL. Calculate the molality, mass percent, and mole fraction (?) of FeCl2 in this solution. The MW of H2O is 18.02 g/mol.
The second law states that the entropy of the universe (system and surroundings) increases in a spontaneous process : delta Ssyst + delta Ssurr is greater than or equal to 0.
Compound Q is identical to the product obtained by the side-chain oxidation of meta-xylene. Compound R, C3H6O has only one single peak absorbance in its nmr spectrum. Compound S, C2H4O2, is water-soluble. Draw the structures for compound P, Q, R, ..
When one mole of solid NAOH is dissolved in one liter of solution, 44.5 kJ of heat are released. How much heat is released when 1 gram of NaOH is dissolved in 100.0 mL of water
a. how many moles of stomach acid would be neutralized by onetablet of regualr strength maalox that contains 600mg of
What is the chemical formula for a compound containing half as many barium atoms as iodine atoms?
a liver biopsy demonstrates cystathionine synthase and cystathionase levels are normal. this patient may have a deficiency of
Problem- The lattice energy of rubidium chloride is the energy change accompanying the process- Rb+(g)+ Cl-(g)-->RbCl(s). Calculate the lattice energy of RbCl using Hess Law and the following data-
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