Chemistry 11a/15a Placement Exam
Question #1:
Evaluate (0.04)^{1/2}
Question #2:
If 2 + (4 + x)^{1/2} = 10, what is the value of x?
Question #3:
Evaluate (6 × 10^{–6})(4 × 10^{–4}) / (3 × 10^{–3})
Question #4:
How many moles of carbon are present in 6 moles of Al_{2}(C_{2}O_{4})_{3}?
Question #5:
If (V2/V1) = (M1/M2)1/2, what is the expression for M2 in terms of the other three variables?
Question #6:
Suppose that (1/V) = (A/B) (1/S) + (1/B), where V and S are variables and A and B are constants. If (1/V) is plotted on the yaxis versus (1/S) on the xaxis,

What is the expression for the yintercept?

What is the expression for the xintercept?
Question #7:
Evaluate [log(100) – antilog(2)]
Question #8:
You are given 1 liter of 1 M glucose. You dilute it by adding to it 9 liters of distilled water. What is the final concentration?
Question #9:
Given that 1 cm^{3} = 1 mL, how many liters are there in a cubic meter?
Question #10:
If the atomic mass of Br is 80. g/mol, what mass of Br_{2} is required to prepare 500. mL of 0.010 M aqueous Br_{2}?
Question #11:
If the density of a liquid is 0.80 g/mL, what is the volume of 2.4 grams of the liquid?
Question #12:
If 24 g of a compound synthesized in the laboratory represents a yield of 75%, what is the maximum (100%) yield?
Question #13:
If x + y = 2 and 2x + 4y = 5

What is the value of x?

What is the value of y
Question #14:
Apples cost $1.50 per pound, and bananas cost $0.60 per pound. If a student buys 8.00 pounds of fruit (apples and bananas) for $9.30, how many pounds of apples did the student buy?
Question #15:
Hydrogen atoms have a mass of 1.00 g/mol, and oxygen atoms have a mass of 16.0 g/mol. Liquid water has a density of 1.00 g/mL. Hydrogen and oxygen gases are burned to produce water, which is then condensed into a liquid. If this reaction produces 90.0 mL water, how many grams of oxygen gas were consumed?