English
Karnataka Board PUCPUC Science Class 11

How many significant figures are present in the 2.0034? - Chemistry

Advertisements
Advertisements

Question

How many significant figures are present in the 2.0034?

One Line Answer

Solution

2.0034 - There are 5 significant figures.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Some Basic Concepts of Chemistry - EXERCISES [Page 27]

APPEARS IN

NCERT Chemistry - Part 1 and 2 [English] Class 11
Chapter 1 Some Basic Concepts of Chemistry
EXERCISES | Q 1.19 - (vi) | Page 27

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

What do you mean by significant figures?


How many significant figures are present in the 0.0025?


How many significant figures are present in the 126,000?


Round up the following upto three significant figures:

34.216


Round up the following upto three significant figures:

10.4107


Round up the following upto three significant figures:

0.04597


A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitrarily by increasing the number of divisions on the circular scale?


A LASER is a source of very intense, monochromatic, and unidirectional beam of light. These properties of a laser light can be exploited to measure long distances. The distance of the Moon from the Earth has been already determined very precisely using a laser as a source of light. A laser light beamed at the Moon takes 2.56 s to return after reflection at the Moon’s surface. How much is the radius of the lunar orbit around the Earth?


It is a well known fact that during a total solar eclipse the disk of the moon almost completely covers the disk of the Sun. From this fact and from the information you can gather from examples 2.3 and 2.4, determine the approximate diameter of the moon.


State the number of significant figures in the following:

0.2370 g cm–3


State the number of significant figures in the following:

6.320 J


State the number of significant figures in the following:

0.0006032 m2


Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):-

the wind speed during a storm


Solve the numerical example.

Write down the number of significant figures in the following: 0.003 m2, 0.1250 gm cm-2, 6.4 x 106 m, 1.6 x 10-19 C, 9.1 x 10-31 kg.


Solve the numerical example.

The diameter of a sphere is 2.14 cm. Calculate the volume of the sphere to the correct number of significant figures.


How many significant figures should be present in the answer of the following calculations?

`(2.5 xx 1.25 xx 3.5)/2.01`


The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is ______.


The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give ______.


Using the rules for significant figures, the correct answer for the expression `(0.02858 xx 0.112)/(0.5702)` will be ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×