Jesset C.

asked • 07/17/21

Can someone please check-over my answers to these Chemistry problems? (My answers are in bold.)

1. Molality (m) is _______.

A. the number of moles of solute / the number of kilograms of solvent

B. the number of kilograms of solvent / the number of moles of solute

C. the number of moles of a substance / the number of liters of solution

D. the number of liters of solution / the number of moles of a substance

E. None of the Above


 2. Table salt dissolves in water because _______.

A. water is a polar covalent molecule

B. table salt is an ionic compound

C. Na+ ions are attracted to the Oxygen in water more strongly than they are to Cl– ions

D. Cl– ions are attracted to the Hydrogen in water more strongly than they are to Na+ ions

E. All of the Above


 3. Solubility is _______.

A. the amount of solute that can dissolve in a maximum amount of solvent

B. the maximum amount of solute that can dissolve in a given amount of solvent

C. the maximum amount of solvent that can dissolve a given amount of solute

D. All of the Above

E. None of the Above


 4. An endothermic process _______.

A. absorbs heat

B. releases heat

C. neither absorbs nor releases heat

D. causes precipitates

E. None of the Above


 5. An exothermic process _______.

A. absorbs heat

B. releases heat

C. neither absorbs nor releases heat

D. requires heat to proceed

E. None of the Above

 

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