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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 is4.8oC

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 of4-5oC.

02

explanation

Since it shows up someplace somewhere between the two, the temperature can be accounted for as 4.8oC.Here, the number 4is sure, while the number 8is 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

Write the complete name for each of the following units:

a.cL

b.kg

c.ms

d.Gm

Complete each of the following metric relationships:

(a)1mg=g

(b)1mL=渭L

(c)1g=Kg

(d)1g=mg

Determine the density (g/mL) for each of the following:

a. The fluid in a car battery has a volume of 125 mL and a mass of 155 g.

b. A plastic material weighs 2.68 lb and has a volume of 3.5 L.

c. A 4.000-mL urine sample from a person suffering from diabetes mellitus has a mass of 4.004 g.

d. A solid object has a mass of 1.65 lb and a volume of 170 mL.

A graduated cylinder contains 155mLof water. A 15.0-Epiece of iron and a 20.0-g piece of lead are added. What is the new water level, in milliliters, in the cylinder (see Table 2.8)(2.7)

Measure the length of each of the objects in diagrams (a), (b). and (c) using the metric ruler in the figure. Indicate the number of significant figures for each and the estimated digit for each. (2.2)
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