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Chem 104 Final Exam | Questions & Answers (100 %Score) Latest Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions $13.48   Add to cart

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Chem 104 Final Exam | Questions & Answers (100 %Score) Latest Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions

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Chem 104 Final Exam | Questions & Answers (100 %Score) Latest Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions

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  • August 7, 2024
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Chem 104 Final Exam | Questions & Answers (100 %Score) Latest Updated 2024/2025
Comprehensive Questions A+ Graded Answers | With Expert Solutions


what can serve as the solvent in a solution? liquid, solid, gas, or all of the above. - all of the above



a homogeneous mixture consists of 12% ethanol, 28% methanol, and 60% water. what is the solvent?
water, methanol, ethanol, or ethanol + methanol - water



in a solution, the solute is: - the substance that is dissolved



example of colloid: grape juice, homogenized milk, blood, or kool-aid. - homogenized milk



example of suspension: blood, homogenized milk, apple juice, or mayo. - blood



unknown liquid that is insoluble in water but not in benzene (an aromatic hydrocarbon solvent). what
type of molecule is unknown? polar, nonpolar, neither polar or non polar, or both polar and non polar -
nonpolar



solubility of _________ in water decreases as temperature increases. liquids, solids, or gases? - gases



which compound will be most soluble in hexane?



CH3CH2OH CH3OH

CH3CH2CH2OH - CH3CH2CH2OH



water solution of sodium chloride is a good conductor of electricity. due to this property, table salt is
classified as a(n):



weak electrolyte, strong electrolyte, non-electrolyte, or semi-electrolyte - strong electrolyte



example of a weak electrolyte

,MgCl2, HC2H3O2, HNO3, or KOH - HC2H3O2



in order to prevent the process off either crenation or hemolysis with red blood cells an intravenous
solution concentration should be__________ to the concentration of blood.



hypotonic, hypertonic, isotonic, or all of the above. - isotonic



the process of crenation occurs when the concentration outside a cell is ______ and is said to be
_________.



lower in concentration; hypotonic

higher in concentration; hypertonic

higher in concentration; hypotonic

higher in concentration; hypertonic

none of these - higher in concentration; hypertonic



air can be classified to be a solution of several gases. which gas is considered to be the solvent?



O2, N2, CO2, or H2O - N2



arrange the terms solution, suspension, and colloid in order of increasing size of the dispersed particles
(smallest to largest).



solution < suspension < colloid

solution < colloid < suspension

suspension < solution < colloid

colloid < solution < suspension - solution < colloid < suspension



identify the type of transport that will occur for the sodium ions that requires energy for transport

,passive diffusion

active transport

facilitated diffusion

all of the above

none of the above - active transport



identify the type of transport that will occur for the oxygen molecules that requires no energy for
transport



passive diffusion

active transport

facilitated diffusion

all of the above

none of the above - none of the above



predict which will fully dissociate (strong electrolyte) in water



sugar

organic acid pyruvic

KCl

all

none - KCl



in order to prevent the process of either crenation or hemolysis with red blood cells an intravenous
solution concentration should be _______ to the concentration of blood.



hypotonic

hypertonic

, supersonic

isotopic

isotonic - isotonic



the glucose transporter provides facilitated transport across the cell membrane. do you think this
transporter is active after you eat a meal and after you wake up in the morning?



active, active

inactive, inactive

active, inactive

inactive, active - active, inactive



example of a nonelectrolyte



MgCl2

CH3COOH / HC2H3O2

sugar C12H22O11

NaOH - sugar C12H22O11



calculate mass percent of a solution prepared by dissolving 34.4g NaCl in 298 g of water.



a 10.35%

b 11.51 %

c 0.103 %

d 0.115 %

e none of the above - a 10.35%



what is 75% of 375? - 281.3

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