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The overall formation constant for Cu(NH3)42+ is 1.1x1013 at 25oC. What is [Cu2+], in moles per litre, at equilibrium when 8.3 g Cu(NO3)2 is dissolved in 0.500 L of 1.00 mol/L NH3(aq)? Assume that there is no volume change when the Cu(NO3)2 is added to the solution.
In photography, solutions of sodium thiosulfate are used to dissolve unexposed AgBr (Ksp = 5.0 × 10-13) in the developing process for black-and-white film. What mass of AgBr can dissolve in 1.00 L of 0.238 M Na2S2O3.
Calculate the equilibrium concentration of HC2O4- in a 0.20 M solution of oxalic acid.
Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL.
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m
Balancing the following reaction in basic solution and also Identifying the reducing and oxidizing agent. Please explain how the answers were obtained.
Determine the molarity of the solution If 3.00 grams of Ammonium sulfate is dissolved in enough H2O to form 300. mL of solution,?
Make the following assumptions in your calculation; at normal filling conditions, the densities of engine coolant and water are 1.11 g/mL and 0.998 g/mL respectively. Assume that the engine coolant is pure ethylene glycol (HOCH2CH2OH), which is no..
Calculate the [H3O+] concentration in 0.45 M solution of barbituric acid, HC4H3N2O3. Ka for barbituric acid is 1.0 X10 ^-5.
Determine what is the coordination of the cations in the case of a normal spinel and what point defects are possible in the spinel structure?
It has a pressure of 46.3 mmHg and 24.6 C (degrees). what is the molecular formula og the compound
A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 133.0 mL of stock solution. A 11.90 mL sample of this stock solution is added to 52.50 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
Suppose a 24.3-mL sample of helium gas at 25 °C and 1.01 atm is heated to 50. °C and compressed to a volume of 15.2 mL. What will be the pressure of the sample?
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