Question

1. Lead (Pb), has a density of 11.35 g/ml. If I have 3.45 cc of lead, what is the weight in
grams?
4. I am traveling at 100 mph per hour before getting pulled over. Convert this into meters
Per second.
(A) 161 m/s (C) 161000 m/s
(B) 4.44 m/s (D) 44.4 m/s (E) 444.44 m/s
5. I can eat 10 cans of Vienna sausages in 1 hour. Each can has 60 mg of sodium nitrate.
What is my intake of sodium nitrate per second?
7. The mass of the ocean is about 1.8 x 1021 kg. If the ocean contains 1.076 % sodium
ion, Na+, what is the mass in kilograms of sodium in the ocean?
(A)1.67x1021Kg (B) 1.67x1019
(C) 1.9368x1019 kg (D) 1.9368x1017 kg
8. A ball of clay has a mass of 2.65 pounds and a volume of 0.5025 quarts. What is the
density in grams per milliliter?

Answer 1

What have you done on these? You don't show any thinking at all.
#1. mass = volume x density
mass = 3.45 mL x 11.35 g/mL = ??
(note: 3.45 mL is the same as 3.45 cc).