P.S. 0 Recitation Quiz (911 1107)
Name:
(Please print legibly!)
Recitation instructor:
Recitation time (circle): B hour
E hour
Please remember from now on and forever that 1 mL = 1 cm3 by definition. You may NOT use
conversion factors that are programmed in your calculator!
1.@ts)
How many significant figures are in the following numbers?
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4 0 m M s 30.7, r)
4.50 x lo7 7
0.0076505000000
II. (6 pts) Show a comulete dimensional "sinde-line" set-uv in order to solve each of the following.
Express each final answer with correct significant figures and appropriate dimensions. ALSO EXPRESS
EACH ANSWER USING SCIENTIFIC NOTATION.
(a) What is the volume of liquid mercury in liters if there are 58 g of it and its density is
(b) Determine the atomic weight of Z, if moles = 2.0 mol 2, volume = 20.0 mL, density = 6 g Z/mL.
atoms of He weigh?
= ~,BY~/O-;
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III. (2 pts) Doing a barbeque on the grill at Uffelmanor is only slightly more dictated by rule than the Japanese
Tea Ceremony. For example: For every student attending by count, there should be an average of 457 ounces
of meat. There are 16 ounces in a pound by definition. There are approximately 454 grams in 1.00 pound.
There should be 33.1 kilograms of charcoal for every 2.00 kg of meat. For every 1.00 kg of charcoal, Dr. U
uses 205 mL of liquid aircraft grade kerosene and 105 mL of liquid tertiary butylhydrogen peroxide (TBHP)
to get the charcoal hot. Assuming that 16 stlldents by count go to Dr. Vs for a barbeque, what is the total
volume in liters of kerosene and TBHP that he will need?
PLEDGE:
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