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(a)
Interpretation:
The ionic strengths for intra- and extracellular fluids are to be stated.
Concept introduction:
The ionic strength is calculated by the formula given below.
In the above expression,
(b)
Interpretation:
The reason as to how the overall ionic charge is balanced when concentration of cations is not equal to the concentration of anions is to be stated.
Concept introduction:
The ionic strength is calculated by the formula given below.
In the above expression,
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Chapter 8 Solutions
Physical Chemistry
- Apatite, Ca5(PO4)3OH, is the mineral in teeth. On a chemical basis explain why drinking milk strengthens young children’s teeth. Sour milk contains lactic acid. Not removing sour milk from the teeth of young children can lead to tooth decay. Use chemical principles to explain why.arrow_forwardSelected information about five solutions, each at 24C, is given in the following table. Fill in the blanks in each line in the table. The first line is already completed as an example.arrow_forwardWhat is the expected electrical conductivity of the following solutions? (a) NaOH(aq) (b) HCI(aq) (c) C6H12O6(aq) (glucose) (d) NH3(aq)arrow_forward
- A 15.00 ml sample of aqueous HCl requires 16.88 ml of 0.402 M NaOH to reach the endpoint. What is the molar concentration of HCl? The chemical equation for the reaction is: NaOH + HCl --> NaCl + H20arrow_forwardA solution A contains 0.02mol/dm3 CH3COOH(aq) and 0.2mol/dm3 CH3COONa(aq) What substance would you add to an aqueous solution of ammonia in order to have a resulting solution with a property similar to that of solution "A" above? Give two uses of solutions with the same property as solution A. How would solution A react on addition of small amounts of: aqueous hydrochloric acid (include equations where necessary) aqueous sodium hydroxide (include equations where necessary)arrow_forwardCalculate the volume in milliliters of 0.362 M KOH necessary to titrate 28.38 mL of 0.279 M diprotic sulfuric acid, H2SO4, to a phenolphthalein end-point. Report the answer to a precision of 2 decimal places.arrow_forward
- A solution of 20 ml of 1ON KOH required 20.3 ml of NaOH solution when end point of Titration was reached. What is the Normality of NaOH solution? O 9.85 N O 10 N O Higher 'N' O 100 Narrow_forwardOxaloacetic acid (C4H5O5, pKa1 = 2.56, pKa2 = 4.37), a diprotic acid, is part of the citric acid cycle. What is the concentration of hydrogenoxaloacetate (C4H4O5–) in a 0.5000 M solution of sodium oxaloacetate (Na2C4H3O5)?arrow_forwardIn a 2.31M C2H5NH2 aqueous solution, determine the percentage of ionised C2H5NH2 molecules. Kb is 4.6x10^-4.arrow_forward
- What is the pOH for a solution at 25 °C that has a H3O+ concentration of 6.57 ×10-6 M? A 34.1 % (NH4 )2SO4 (molar mass = 132.1 g mol−1) has a density of 1.15 g mL−1. What is the molarity of this solution? (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation--examples include 1.23 and 120. and -123 and 123. and 12.3) Determine the boiling point of a solution that contains 78.5 g of compound W (molar mass = 132.5 g mol–1) dissolved in 1088.6 g benzene (C6H6; molar mass = 84.156 g mol–1; Kb = 2.53 °C m–1; boiling point of pure benzene = 80.1 °C). (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation--examples include 1.23 and 120. and -123 and 123. and 12.3) NEED HELP ASAP NO WORK NEEDEDarrow_forwardA water solution containing HCN conducts an electric current to a small extent. Write the reaction of hydration of HCN.arrow_forwardIt requires 10.75 mL of 1.05 M Ba(OH)2 to neutralize (titrate) a 35.00 mL sample of HX. What is the concentration of HX solution (measured in moles per liter)? Report to 3 significant figures.arrow_forward
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
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