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A 40.0ml sample of 0.150 Ba(OH)2 is titrated with 0.400M NH)3 . Calculate the pH after the addition of the following volumes of acid, and plot the versus milliliters of added.
18.8ml30ml40.4ml
Calculate the pH for the following cases in the titration of 25.0mL of 0.2M cyanic acid (HCNO, pKa=3.66) with 0.2M RbOH solution
Sorbic acid, C5H7COOH, is a weak monoprotic acid with Ka = 1.7 x 10-5. Calculate the pH of a solution containing 11.25 g of potassium sorbate in 1.75 L of solution.
Calculate the density of N2 at STP, (a) using the ideal-gas law and (b) using the molar volume and molar mass of N2.
A certain rifle bullet has a mass of 9.81 g. Calculate the de Broglie wavelength of the bullet traveling at 1433 miles per hour.
Calculate the pH of the buffer after the addition of 1.5 g of HCl (36.5 g/mol). (Ka of HNO2 = 7.1x10^-4.)
A 2 liter bottle contains a solution of sugar in water. there are 2 moles of sugar in the bottle. what is the morality of the solution. show your calculations.
Using the diagrams provided below, draw an atomic-scale view for the chemical species that are present in the solutions in each beaker. In your diagrams, be sure to Include all chemical species except water molecules
Calculate the vapor pressure at 25 degree C of hexane above the solution. The vapor pressure of pure hexane at 25 degree C is 151 torr
When a sample of 5.00-g rams of Potassium thiocyanate is dissolved in H2O in a calorimeter that has a total heat capacity =6.225 kJ•K-1, the temperature decreases by 0.200 Kelvin. compute the molar heat of solution of Potassium thiocyanate.
A solution contains 0.010 M silver ion and 0.0010 M lead(II). Sodium sulfate is dissolved to give a nominal concentration of 0.0010 M sulfate. Does a precipitate form?
When agueous solutios of AgNO3 and NaI are mixed,AgI precipitates. What is the balanced net ionic equation
Draw the structures of each of the following compounds. Determine the number of chirality centers, indicating them in each structures. Also calculate the number of possible stereoisomers for the compound.
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