Chem 161-2010 Exam I review

# Chem 161-2010 Exam - CHEM 161-2010 EXAM I REVIEW CHEM 161-2007 EXAM I ANSWERS 2 areas from 2008 exam I not covered in 2007 exam I Chem 161-2010

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CHEM 161-2010 EXAM I REVIEW CHEM 161-2007 EXAM I + ANSWERS (+ 2 areas from 2008 exam I not covered in 2007 exam I) Chem 161-2010 Exam I review session in place of lecture 1

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Chem 161-2007 Exam I Hill, Petrucci et al., 4 th edition Chapter 1 – Chemistry: Matter and Measurement Units/unit conversions/dimensional analysis 13. What is the volume, in L, of a box that is 8.00 in on a side? 1 in = 2.54 cm exactly A . 8.39 B. 1.30 C. 31.2 D. 0.0312 E. 3.90 Plan: in → in 3 → cm 3 → mL → L 8 in x ((8 in) 3 /8in) x (2.54 cm/in) 3 x (1 mL/cm 3 ) x (1 L/1000 mL) = 8.39 L ET: Also do numerator/denominator; e.g., 1.08 mile/in 3 to km/L Chem 161-2010 Exam I review session in place of lecture 2
INTERNATIONAL MEASUREMENT SYSTEM Système International (SI) Base units: o length: meter (m) – 3.28 ft. = 39.37 in. o mass: kilogram (kg) – 2.205 lbs. o time: second (s) o temperature (K) o electric current: ampere (A) o amount: mole (mol) o luminous intensity: candela (cd) Chem 161-2010 Exam I review session in place of lecture 3

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Chem 161-2007 Exam I Hill, Petrucci et al., 4 th edition Chapter 1 – Chemistry: Matter and Measurement Units/unit conversions/dimensional analysis 4. Which of the following is not a base unit of the SI measurement system? A. m B. s C. kg D. A E . atm m (meters), s (seconds), kg (kilograms), and A (amperes) are basic SI units. Atm is not an SI unit; the SI unit for pressure is newtons per meter squared (N/m 2 ) and is called the Pascal (Pa). One atmosphere is 101.325 Pa. Chem 161-2010 Exam I review session in place of lecture 4
Metrix system prefixes (memorize) Multiple Prefix 10 9 giga (G) 10 6 mega (M) 10 3 kilo (k) 10 -1 deci (d) 10 -2 centi (c) 10 -3 milli (m) 10 -6 micro (μ) 10 -9 nano (n) 10 -12 pico (p) Chem 161-2010 Exam I review session in place of lecture 5

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Chem 161-2007 Exam I Hill, Petrucci et al., 4 th edition Chapter 1 – Chemistry: Matter and Measurement Units/unit conversions/dimensional analysis 15. In the SI metric system, which power of ten is associated with the prefix n? A. 10 9 B. 10 -6 C . 10 -9 D. 10 6 E. 10 -12 “n” means “nano” which means “10 -9 ”; e.g., a nanometer is 1 x 10 -9 m. Chem 161-2010 Exam I review session in place of lecture 6
Chem 161-2007 Exam I Hill, Petrucci et al., 4 th edition Chapter 1 – Chemistry: Matter and Measurement Units/unit conversions/dimensional analysis 24. What temperature is numerically the same in both o C and o F? A. 0 B. 273 C . -40 D. 212 E. -80 o C = 5/9( o F – 32) A. o C = 5/9( o F – 32) o C = 5/9( o 0 – 32) = -18 o C 0 o ≠ -18 o B. o C = 5/9( o F – 32) o C = 5/9(273 – 32) = 134 o C 273 o ≠ 134 o C. o C = 5/9( o F – 32) o C = 5/9(-40 – 32) = -40 o C -40 o = -40 o D. o C = 5/9( o F – 32) o C = 5/9(212 – 32) = 100 o C 212 o ≠ 100 o E. o C = 5/9( o F – 32) o C = 5/9(-80 – 32) = -62 o C -80 o ≠ -62 o Chem 161-2010 Exam I review session in place of lecture 7

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• CLASSIFICATION AND SEPARATION OF MATTER matter (has mass) substance mixture (of substances) element compound e.g., H, Al H 2 O Two or more elements or compounds Chem 161-2010 Exam I review session in place of lecture 8
Chem 161-2007 Exam I Hill, Petrucci et al., 4 th edition Chapter 1 – Chemistry: Matter and Measurement Classification of matter 16. A substance A. is always a compound.

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## This document was uploaded on 11/02/2011 for the course GEN CHEM 162 at Rutgers.

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Chem 161-2010 Exam - CHEM 161-2010 EXAM I REVIEW CHEM 161-2007 EXAM I ANSWERS 2 areas from 2008 exam I not covered in 2007 exam I Chem 161-2010

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