Question

1.

An acid (HA) has a K_a = 4.7 x 10^-6. What is the pH of a solution containing 0.350 M of this acid?

	a.	3.02
	b.	2.94
	c.	2.89
	d.	0.60

2.  

For a rate law, the exponents on each concentration term ([A]^x, [B]^y, etc.) come from the coefficients of the balanced equation.

True

or

False

3.  

The pH of a 0.025 M aquesous solution of the strong base NaOH is ____.

	a.	1.60
	b.	-12.18
	c.	12.18
	d.	12.40

4.  

The acid ionization constant for Cu(H2O)6⁺² when dissolved in water is 1.0 x 10^-7. Calculate the pH of a 0.0760 M solution of this compound.

		4.06
		4.13
		1.12
		8.12

5.  

The mole fraction (X) of a solute in a solution is defined as ____.

	a.	Moles of Solvent/Moles of all Solution Components
	b.	Moles of Solute/Liters of Solvent
	c.	Moles of Solute/Moles of Solvent
	d.	Moles of Solute/Moles of all Solution Components