Measurements Quiz 2

Measurements Quiz 2 - to the correct number of significant...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1 CHEM 120 PRACTICE QUIZ 2 Measurement Name ____________________________________________Score ___________ (2pts) 1. Metric Prefixes a) The abbreviation for the prefix micro is μ b) Deci means _ 1/10 th of the base unit c) 1 megagram = 10 6 gram (number) d) 1 cm = 0.01 m (number) (3pts) 2. Exponential Notation/Significant Figures a) Express 4082.2 in scientific notation 4.0822 x 10 3 b) How many significant figures are in 0.03670? 4 Explain your answer (ie state the rule etc. ..) c) How many significant figures are in 20405? 5 (1pt) 3. Solve the following problems, expressing the answer in scientific notation and
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: to the correct number of significant figures. a) 1.906 x l0 2 x 4.6 x 10 3 = 4.4 x 10 3 b) 1986 + 23.48 + 0.012 = 2009 2.01 x 10 2 (2pts)4. Convert 175 mm to Mm. 1.75 x 10-7 Mm (1pt) 5. How many liters of gasoline will be used to drive 500 miles in a car that averages 34 miles per gallon? 1L = 1.06 qt (need additional conversion 4 quarts = 1 gallon) 55 L (unrounded) 60 L (with sig figs) (1pt) 6. The ones marked in red are incorrect MegaLiter (ML); micrometer (μm); microquart (μqts); deciliter (dL), megagallon (Mgal); kiloliter (KL); milliseconds (ms); centigram (cg)...
View Full Document

{[ snackBarMessage ]}

Page1 / 2

Measurements Quiz 2 - to the correct number of significant...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online