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What partial pressure of oxygen above the water (in atmospheres at 0 C) is needed to obtain this concentration [4mg/L]? The solubility of O2 in water at 0C and 1 atm partial pressure is 2.21*10^- 3 mol/L.
calculate the mass (g) of the excess reactant after thereaction is complete e. calculate the theoretical yeild (g) of 2,2dibromopropane
In fractional distillation and steam distillation, we used tap water. What would happen if you inversed the water in and water out of the condenser
a 10.4-g sample of cacl2 is dissolved in 118 g of water with both substances at 25.0degc. calculate the final
whats a good hypothesis for the reactivity of halide ions lab in
Calculate the pH of Benzoic acid if 0.0458 M is dissolved in water ( Ka = 6.40 x 10^-5) C6H5CO2H + H2O = (H3O+) + C6H5CO2 ^-1
A solution was prepared to have a density of 1.20 g/mL and a molality of 2.24 m at 22oC. The Mm of the solute is 63.10 g/mol. (a) What is the molarity of the solution?
If a student starts with 0.545 g of pure 4-aminobenzoic acid and ends up with 0.488 g of benzocaine, what are their theoretical and percent yields
sodium borohydride,NaBH4, a substance used in the synthesis of many pharmaceutical agents,can be prepared by reaction of NaH with B2H6 according to the equation 2 NaH + B2H6 = 2 NaBH4.
The heat capacity of liquid water 4.18 J/g degree celcius and the molar heat of vaporization 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67 degree celcuis into 1.00 g of steam at 100 degrees celci..
You need to prepare 100.0 mL of of buffer solution of pH=4.00 using 0.10M benzoic acid (pKa=4.20) and 0.160M sodium benzoate. What is the volume of each solution needed to prepare this buffer?
The synthesis of zinc iodide was performed using 1.7748g of zinc and 1.1185g of iodine. Determine the limiting reactant and calculate the theoretical yield of zinc iodide in grams
What types of intermolecular forces would you expect to exist among molecules of 1-butanol? (Select all that apply.)
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