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Calculate the molar concentration of uncomplexed Zn2+ in a solution that contains 0.20 mole of Zn(NH3)42+ per liter and 0.0116 M NH3 at equilibrium? The overall Kf for Zn(NH3)42+ is 3.8 × 109.
If 7.85 x 10 to the 24th power Sc atoms react with excess CaO, how many grams of each product will form? You will need to determine the equation of the reaction.
Determine the molarity of a solution of twenty grams of Ammonium bromide, NH4Br, in enough water to produce 132 mL of solution?
a block of aluminum with the volume of 96.5 g absorbs 65.3 J of heat. If the initial temperature is 31.2 degrees celcius, what is the final temperature.
A 100 mm diameter silicon wafer is oxidized completely. What is the thickness of the resulting SiO2 wafer? The molecular weight of Si is 28 g/mol and of SiO2 is 60 g/mol.
Determine the amount of heat given off when 1.26 x 104 g of NO2 are produced express your answer (in kJ)?
Advantages and disadvantages of using Alternative Fuel and Would you consider buying one of these in the future? Why or Why Not and Why do you think there are not more of these vehicles in use?
For a solution having .0025 equivalents/liter total alkalinity (contributions from HCO3-, CO3-- and OH- (hydroxide)) at [H+] = 4.69E-11, what is the percentage contribution to alkalinity from CO3--?
Using K=3.9 as the equilibrium constant, Keq, Compute the amount of Isoamyl acetate, also known as isopentyl acetate (C7H14O2 )that must be present at equilibrium.
What hybrid orbital would be expected for the central atom in each of the following: Draw the molecular structure of these compounds and label Ï? and Ï?bonds.
Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.
Dalton law of partial pressure - The partial pressure of oxygen is maintained at 0.20 atm at this depth
Photosynthesis is estimated to produce 330.0 g (dry weight) of plant matter per square meter, 50% of which is carbon. Calculate the total number of grams of carbon "fixed" each year by 1000 square meters.
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