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What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 0.560 mg/L , that total blood volume is 5.5 L , and that 1 mol of succimer binds 1 mol of lead.Express your answer using two significant figures.
A 128.2-mL sample of a 0.15 M solution of H3PO4 is titrated with 0.18 M NaOH. What volume of base must be added to reach the third equivalence point
What volume of ethylene glycol, C2H6O2, a nonelectrolyte, must be added to 15.0 L of water to produce an antifreeze solution with a freezing point of -30*C? What is the boiling point of the solution?
how many iterations (n) are needed to validate that a constant value had been obtained? Express [H3O+] using two significant figures, followed by a comma and the number iterations as an integer
If 0.384 moles of Zinc reacts with excess Lead(IV) sulfate, how many grams of zinc sulfate would be produced in the following equation?
Cobalt Chloride in varying concentrations Spectrophotometer set to a Wavelength = 510 nm % Transmission = experiment #1 = 31.62, experiment #2 = 89.13 and experiment #3 = 98.86
this solution was added 1.960 grams of KI and 50.00 mL of a 0.00923 M KIO3 solution. The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
You add 1 mL of 1 M HCl to the buffer. Calculate the molarity of H30+ added as HCl, and the final molarities of acetic acid and acetate ion at equilibrium. What is the new value of pH?
what are possible reasons for the differences observed in conductivity for H3PO4 and H3BO3? Explain it please. B) Write out the dissociation steps for H3PO4 and H3BO3.
Show how you can separate a racemic mixture of R,S-lactic acid in its pure enantiomers using a chiral amine of choice. Draw the reactions using structural formulas and describe the process
A 1.90 g sample of a large boimolecule was dissolved in 11.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule
Write the standard half-cell reduction reaction equation for reactive species in the beaker. B) Determine the cell potential(Ecell) at the moment of mixing.
The Eu(III) standards added to the groundwater sample contained 0.181 ng/mL (ppb) of Eu(III). Calculate the concentration of Eu(III) in the groundwater sample.
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