Indicate to what decimal position readings should be estimated and recorded (nearest 0.1 , 0.01 , etc .) for measurements made with the following devices: a. A buret with a smallest scale marking of 0.1 mL b. A graduated cylinder with a smallest scale marking of 1 mL c. A thermometer with a smallest scale marking of 0.1 ° C d. A barometer with a smallest scale marking of 1 torr
Indicate to what decimal position readings should be estimated and recorded (nearest 0.1 , 0.01 , etc .) for measurements made with the following devices: a. A buret with a smallest scale marking of 0.1 mL b. A graduated cylinder with a smallest scale marking of 1 mL c. A thermometer with a smallest scale marking of 0.1 ° C d. A barometer with a smallest scale marking of 1 torr
Solution Summary: The author explains that significant figures are used to express a measurement in scientific notation.
Indicate to what decimal position readings should be estimated and recorded (nearest
0.1
,
0.01
,
etc
.) for measurements made with the following devices:
a. A buret with a smallest scale marking of
0.1
mL
b. A graduated cylinder with a smallest scale marking of
1
mL
c. A thermometer with a smallest scale marking of
0.1
°
C
d. A barometer with a smallest scale marking of
1
torr
7. What number should be reported to best reflect
the temperature according to the thermometer?
A. 21.7 °C
B. 21.70 °C
CC
22°C
........
25
20
15
D. 21 °C
22.7°C
E.
undergo the
Homework and Exercises 1.53 and 1.56
53. Convert the following Fahrenheit temperatures to the Celsius and
Kelvin scales.
a. -459°F, an extremely low temperature
b. -40.°F, the answer to a trivia question
c. 68°F, room temperature
d. 7 X 107 °F, temperature required to initiate fusion reactions
in the sun
56. Convert the following Kelvin temperatures to Celsius and
Fahrenheit degrees.
a. the temperature that registers the same value on both the
Fahrenheit and Celsius scales, 233 K
b. the boiling point of helium, 4 K
A. The Internal System of Units
Fill in the space provided with the correct SI units and symbol for each quantity.
Quantity
Unit
Symbol
Length
Mass
Time
Electric current
Temperature
Amount of substance
Luminous intensity
B. The Metric System
Convert the following figures to its desired units. Do not round off your answers.
1. 23 m to
2. 76 L to
3. 93.2 mg to
4. 83.34 dL to
5. 94.1 Dm to
6. 12 cm to
7. 164,000 ml to
8. 454 g to
9. 1,232 kg to
10. 672 L to
km
DL
Hg
mm
mg
m
kL
Chapter 1 Solutions
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