What types of substances are most likely to be soluble in water?

Which of the following compounds would you expect to be most soluble in water? and why?

A) CH3CH2CH2CH2OH

B) CH3Br

C) CH3CH2OH

On the basis of the general solubility rules given in Table 7.1, predict which of the following substances are likely to be soluble in water.

b. magnesium chloride

12. $\frac { a + 1 } { 3 a } + \frac { b - 2 } { 5 b }$

Which one of the following compounds will be soluble in water?

• AgBr

• PbS

• NH$_4$Cl

• CaCO$_3$

• Cu(OH)$_2$

predict which of the following substances are not likely to be soluble in water. Indicate which specific rule(s) led to your conclusion.
f. AlPO$_4$

Which substance, below, is least likely to dissolve in water, a polar substance? (Hint: Likes dissolve Like)
a) NH$_4$Cl
b) KOH
c) CH$_4$
d) NaCl

Nonpolar substances sometimes dissolve in water to a small extent. Explain why this might occur.

Which of the following compounds are soluble in water?

The rate of a chemical reaction normally _____.

A. decreases as temperature increases

B. is slowed down by a catalyst

C. increases as reactant concentration increases

D. decreases as reactant concentration increases

What two factors cause water to be polar?

The Henry's law constant for helium gas in water at

$$30 ^ { \circ } \mathrm { C }$$

is

$$3.7 \times 10 ^ { - 4 } M / a t m$$

and the constant for

$$N_2$$

at

$$30 ^ { \circ } \mathrm { C }$$

is

$$6.0 \times 10 ^ { - 4 } M / atm$$

If the two gases are each present at 1.5 atm pressure, calculate the solubility of each gas.

Explain why the covalent bonds in molecules of elements are always nonpolar.

Write net ionic equations for the reactions given

(a) S$_8$(s) + 8O$_2$(g) $\rarr$ 8SO$_2$(g)

(b) NiCl$_2$(aq) + Na$_2$S(aq) $\rarr$ NiS(s) + 2 NaCl(aq)

( c) 2 CH$_3$CO$_2$H(aq) + Ba(OH$_2$)(aq) $\rarr$(CH$_3$CO$_2$)$_2$Ba(aq) + 2H$_2$O(l)