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What is the equilibrium concentration of Fe3+ after adding .180 mol of Fe(NO3)3 to a solution of CN-? The final volume of the solution is 1 L and the concentration of CN- is 2.982 M. Kf = 9.1e41
If it is Ionic, mention which is the cation and which is the anion. Discuss how the ions formed (gaining or losing electrons and how many). If it is covalent, discuss where the covalent bonds are and draw the structure.
the trianglehfus of ethanol c2h5oh is 4.60kjmol. how many kilojoules are required to melt 24.5grams of ethanol at its
How many molecules of sucrose (table sugar), C12H22O11, dissolved in 450.0 g of water are needed to make a 1.30 m solution?
If 1.00 mole of HI is put into an evacuated 1.00-liter container at 490 degrees C and allowed to reach equilibrium, how much H2 will be present at equilibrium in the reaction H2(g) + I2(g) 2HI, K=45.9 at 490 degrees C?
Calculate the pH of a solution prepared by dissolving 18.32 grams of benzoic acid and 43.23 grams of sodium benzoate in water sufficient to yield 1.00 L of solution.
Describe the hybrid orbitals used by the central atom in O 3 .and also determines what is the number of sigma and pi bonds present in O 3 .
A solution contains 410.3 g of H2SO4 per litre of solution . If the density is 1.243 g/ml, what will be its molarity and molality.
a student calculates the density of iron as 5.72 gcm3 by using lab data for mass and volume. a handbook reveals that
the pH of a saturated solution of a metal hydroxide MOH is 9.30. calculate the Ksp for the compound
Assuming that the gas becomes saturated with benzene vapor and that the total gas volume and temperature remain constant, what is the vapor pressure of the benzene in torr
The molar heat capacity of ethane is represented in the temperature range 298 k to 400 k by the empirical expression C(p,m)/(J K-1 Mol-1) = 14.73 + 0.1272 (T/K). Calculate the standard enthalpy of formation of ethane at 350 K from its value at 298..
What is the pH of a solution made by dissolving 0.052 grams of RbOH in enough water to make 64.9 mL of solution
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