Properties of Water

Concept: Polar Properties

7m

Concept: Thermal Properties

14m

Problem: A solution in which water is the solvent is called a(n) _________________.

1m

Problem: Things that have an affinity for water are:

1m

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Properties of Water Additional Practice Problems

List water's four properties that make it such a good solvent.

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Using your favorite method, find the MOLARITY of a fructose solution C6H12O6 containing 400g of fructose in 5000mL of water.

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Our stock solution of CaCl2 is at a concentration of 500mM. How much stock CaCl2 must be added to 10mL of blood to achieve a final concentration of 50mM.

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Define the terms hydrophobic and hydrophilic. Which of the two form hydrogen bonds with the surrounding water molecules? What does this mean in terms of solubility in water?

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Water is the most abundant molecule within cells. Describe the molecular properties of its structure as it is important for predicting its interaction with other molecules within the cell.

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The emergent properties of water (cohesion, high heat capacity, good solvent) come from the fact that water is ______ and ______ hydrogen bond.

a. polar, can

b. polar, cannot

c. non-polar, can

d. non-polar, cannot

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If ice were more dense than water, then during the winter most organisms living in ponds and lakes in colder climates would become entrapped in ice and freeze. 

a. True

b. False

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A substance in which other substances dissolve is called a solute. 

a. True

b. False

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Cohesion is a property of water in which water molecules tend to stick together. 

a. True

b. False

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Individual water molecules bind to each other through: 

a. Covalent bonds

b. Ionic bonds

c. Hydrogen bonds

d. Hydrophobic bonds

e. Non-polar bonds

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Water is best described as which of the following? 

a. An ion

b. A non-polar molecule

c. An atom

d. A polar molecule

e. An element

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Ice floats on water because: 

a. The molecules are closer together in ice than in water

b. The molecules are farther apart in ice than in water

c. Ice is more dense than water

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The partial polarity of water molecules:

a. promotes formation of hydrogen bonds

b. helps water dissolve nonpolar solutes

c. lowers heat of vaporization

d. none of these choices is correct

e. more than one of the choices is correct

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