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Chapter 2: Q.2.86 (page 55)

State the temperature on the Celsius thermometer to the correct number of significant figures: (2.3)

Short Answer

Expert verified

Temperature is $4 . 8^{o} C$

Step by step solution

01

introduction

According to the thermometer portrayed in the figure, every division addresses one degree change in temperature. From the figure, it is known with assurance that the temperature lies somewhere in the range of $4 - 5^{o} C$ .

02

explanation

Since it shows up someplace somewhere between the two, the temperature can be accounted for as $4 . 8^{o} C$ .Here, the number $4$ is sure, while the number $8$ is uncertain.

We know,

Number of significant figures = every one of specific digits + one uncertain digit

Number of significant figures = $1 + 1 = 2$

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Most popular questions from this chapter

A dessert contains $137.25 g$ of vanilla ice cream. $84 g$ of fudge sauce, and $43.7 g$ of nuts.

(2.3, 2.6)

a. What is the total mass, in grams, of the dessert?

b. What is the total weight, in pounds, of the dessert?

Write each of the following in scientific notation with two significant figures :

a. $5100 000 g$ b. $26000 s$

c. $40 000 m$ d. $0.000 820 k g$

In which of the following pairs do both numbers contain the same number of significant figures? $(2.2)$

a. localid="1653604988601" $3.44 \times 10^{- 1} g a n d 0.0344 g$

b. localid="1653605013279" $0.0098 s a n d 9.8 \times 10^{4} s$

c. localid="1653605029840" $6.8 \times 10^{3} m a n d 68000 m$

d. localid="1653605046223" $2.58 . 000 g a n d 2.58 \times 10^{- 2} g$

Write the abbreviation for each of the following:

a. kilogram
b. kelvin
c. quart
d. meter
e. centimeter

For each of the following pairs, which is the smaller unit?
a. mg or g
b. centimeter or nanometer
c. millimeter or micrometer
d. mL or dL
e. centigram or megagram

See all solutions

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