Question

A.) Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient, whose stomach and intestines can then be visualized via X-ray imaging. If a patient ingests 260 mL of a saturated barium sulfate solution, how much toxic Ba2+ ion has the patient consumed?

The solubility product Kspof BaSO4 is 1.10×10−10

Express your answer to three significant figures and include the appropriate units.

B.)There are some data that suggest that zinc lozenges can significantly shorten the duration of a cold. If the solubility of zinc acetate, Zn(CH3COO)2, is 43.0 g/L, what is the solubility product Ksp of this compound?

Express your answer numerically

Constants Periodic Table Salts have varying solubilities in solvents such as water. Some salts dissolve well in water, whereas others are nearly insoluble. The solubility product Kp is the equilibrium constant for the dissolution of a solid salt into water, and its magnitude is an indicator of the solubility of the salt. Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient, whose stomach and intestines can then be visualized via X-ray imaging. If a patient ingests 260 mL of a saturated barium sulfate solution, how much toxic Ba2+ ion has the patient consumed? The solubility product Ksp of BaSO4 is 1.10 x 10-10 Express your answer to three significant figures and include the appropriate units. View Available Hint(s) mass of Ba2+ = Value Units Submit Part B There are some data that suggest that zinc lozenges can significantly shorten the duration of a cold. If the solubility of zinc acetate, Zn(CH3COO)2, is 43.0 g/L what is the solubility product Ksp of this compound? Express your answer numerically. View Available Hint(s) O ALC ma o Di ? Ks =

Answer 1

Here is the Solution:

[B] we need to find out the solubility product, Ksp . Given solubility of zinc acetate an (CH3100), is 43 g/L - The molar mass of zinc acetate = 183.48 g/mol first convert the solubility g/L into mol/L(M) by dividing the molar mass. 43 g/L - = 0.2344 mol/L (M). 183.48 g/mol • Dissociation equation of zinc acutate , Zn (CH3COO)2 Zn't + 2(CH 3 2005 2 + Concentration are: • zn 2+ = 0.2344 m CH3COO = 2x0.2344 M = 004688 M x The equation for Ksp is: Ksp = [2n2t]. [CH3COO-] 2 Ksp = (0.2344 )* (0.4688) ² Ksp = 0.0515 OR Kgp=5115x do x x

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