(a)
Interpretation:
The number of grams of solute present in
Concept introduction:
Several concentration units may be used to express the concentration. It is often useful to express the concentration in terms of percentage. This can be expressed as the amount of solute in grams dissolved in
The formula to calculate molarity is given as follows:
The formula to determine the mass from number of moles is as follows:

Answer to Problem 64P
The number of grams of
Explanation of Solution
The formula to calculate molarity is given as follows:
Since the units of molarity are
The conversion factor to convert
Therefore,
Therefore, the number of moles of
The formula to determine the mass from number of moles is as follows:
The molar mass of
The number of moles of
Substitute the values in above formula to calculate the mass of
(b)
Interpretation:
The number of grams of solute present in
Concept introduction:
Several concentration units may be used to express the concentration. It is often useful to express the concentration in terms of percentage. This can be expressed as the amount of solute in grams dissolved in
The formula to calculate molarity is given as follows:
The formula to determine the mass from number of moles is as follows:

Answer to Problem 64P
The number of grams of
Explanation of Solution
The formula to calculate molarity is given as follows:
Since the units of molarity are
The conversion factor to convert
Therefore,
So, the number of moles of
The formula to determine the mass from number of moles is as follows:
The molar mass of
The number of moles of
Substitute the values in above formula to calculate the mass of
(c)
Interpretation:
The number of grams of solute present in
Concept introduction:
Several concentration units may be used to express the concentration. It is often useful to express the concentration in terms of percentage. This can be expressed as the amount of solute in grams dissolved in
The formula to calculate molarity is given as follows:

Answer to Problem 64P
The number of grams of
Explanation of Solution
The formula to calculate molarity is given as follows:
The volume of
The molarity of
Substitute the values in above formula.
Rearrange the above expression to calculate the number of moles of
The formula to determine the mass from number of moles is as follows:
The molar mass of
The number of moles of
Substitute the values in above formula to calculate the mass of
Want to see more full solutions like this?
Chapter 8 Solutions
GENERAL,ORGANIC, & BIOLOGICAL CHEM-ACCES
- The molar absorptivity of a protein in water at 280 nm can be estimated within ~5-10% from its content of the amino acids tyrosine and tryptophan and from the number of disulfide linkages (R-S-S-R) between cysteine residues: Ε280 nm (M-1 cm-1) ≈ 5500 nTrp + 1490 nTyr + 125 nS-S where nTrp is the number of tryptophans, nTyr is the number of tyrosines, and nS-S is the number of disulfide linkages. The protein human serum transferrin has 678 amino acids including 8 tryptophans, 26 tyrosines, and 19 disulfide linkages. The molecular mass of the most dominant for is 79550. Predict the molar absorptivity of transferrin. Predict the absorbance of a solution that’s 1.000 g/L transferrin in a 1.000-cm-pathlength cuvet. Estimate the g/L of a transferrin solution with an absorbance of 1.50 at 280 nm.arrow_forwardIn GC, what order will the following molecules elute from the column? CH3OCH3, CH3CH2OH, C3H8, C4H10arrow_forwardBeer’s Law is A = εbc, where A is absorbance, ε is the molar absorptivity (which is specific to the compound and wavelength in the measurement), and c is concentration. The absorbance of a 2.31 × 10-5 M solution of a compound is 0.822 at a wavelength of 266 nm in a 1.00-cm cell. Calculate the molar absorptivity at 266 nm.arrow_forward
- How to calculate % of unknown solution using line of best fit y=0.1227x + 0.0292 (y=2.244)arrow_forwardGiven a 1,3-dicarbonyl compound, state the (condensed) formula of the compound obtaineda) if I add hydroxylamine (NH2OH) to give an isooxazole.b) if I add thiosemicarbazide (NH2-CO-NH-NH2) to give an isothiazole.arrow_forwardComplete the following acid-base reactions and predict the direction of equilibrium for each. Justify your prediction by citing pK values for the acid and conjugate acid in each equilibrium. (a) (b) NHs (c) O₂N NH NH OH H₁PO₁arrow_forward
- 23.34 Show how to convert each starting material into isobutylamine in good yield. ཅ ནད ཀྱི (b) Br OEt (c) (d) (e) (f) Harrow_forwardPlease help me Please use https://app.molview.com/ to draw this. I tried, but I couldn't figure out how to do it.arrow_forwardPropose a synthesis of 1-butanamine from the following: (a) a chloroalkane of three carbons (b) a chloroalkane of four carbonsarrow_forward
- Select the stronger base from each pair of compounds. (a) H₂CNH₂ or EtzN (b) CI or NH2 NH2 (c) .Q or EtzN (d) or (e) N or (f) H or Harrow_forward4. Provide a clear arrow-pushing mechanism for each of the following reactions. Do not skip proton transfers, do not combine steps, and make sure your arrows are clear enough to be interpreted without ambiguity. a. 2. 1. LDA 3. H3O+ HOarrow_forwardb. H3C CH3 H3O+ ✓ H OHarrow_forward
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningChemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning





