When an ionic compound such as sodium chloride (NaCl) is placed in water, the component atoms of the NaCl crystal dissociate into individual sodium ions (Na+) and chloride ions (Cl-). In contrast, the atoms of covalently bonded molecules (e.g., glucose, sucrose, glycerol) do not generally dissociate when placed in aqueous solution. Which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions)?

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#Question id: 349

#Part-B Specialized Branches in Biotechnology

Increased atmospheric CO2 concentrations might have what effect on seawater?

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#Question id: 350

#Part-A Aptitude & General Biotechnology

Cohesion, surface tension, and adhesion are the properties of water molecules that ________.

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#Question id: 352

#Part-A Aptitude & General Biotechnology

One mole (mol) of glucose (molecular mass = 180 daltons) is ________.

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#Question id: 353

#Part-A Aptitude & General Biotechnology

Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?

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#Question id: 355

#Part-A Aptitude & General Biotechnology

Measurements show that the pH of a particular lake is 4.0. What is the hydroxide ion concentration of the lake?

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#Question id: 356

#Part-B Specialized Branches in Biotechnology

How does 0.5 M sucrose (molecular mass 342) solution compare to 0.5 M glucose (molecular mass 180) solution?