What are the rules used for round off numbers, Chemistry

Assignment Help:

Q. What are the rules used for round off numbers?

1. If the digit to the instantaneous right of the last significant figure is less than five don't change the last significant figure.

2. If the digit to the instantaneous right of the last significant figure is greater than five round up the last significant figure.

3. If the digit to the instantaneous right of the last significant figure is equal to five and is followed by a nonzero digit round up the last significant figure.

4. If the digit to the instantaneous right of the last significant figure is equal to five and isn't followed by a nonzero digit look at the last significant figure. If it is an odd digit round it up and if it is an even digit don't round up.

Whether you are adding or subtracting or multiplying or dividing you must always report your answer so that it has the same number of significant figures as the measurement with the fewest significant figures.


Related Discussions:- What are the rules used for round off numbers

Rutherford''s scattering experiment is related to the size, Rutherford's sc...

Rutherford's scattering experiment is related to the size of the: (1) Nucleus          (2) Atom      (3) Electron   (4) Neutron Ans: Nucleus

Difference between silica used in tlc and hplc column, What is difference b...

What is difference between silica used in TLC and HPLC column? TLC is called thin layer chromatography. The simple technique works on the principle of adsorption, where as HPLC i

Univercity student, whats is surfactant and its applications in cloud point...

whats is surfactant and its applications in cloud point extraction ?

Noise management strategy on a particular site, Question: a) If you wer...

Question: a) If you were a newly appointed environmental engineer in a wastewater treatment plant and one of your tasks was to characterise the wastewater. According to you,

Hess Law, What was the calculated ?H value obtained for the reaction NH3 + ...

What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure? The thermodynamic data is: •?H°f for NH3 (aq) = -

Addition polymerization, Addition polymerization: It involves following th...

Addition polymerization: It involves following three mechanisms: 1.                 Free radical polymerization 2.                 Ionic polymerization mechanism 3.

Cryoscopy, Ask questiwhat is cryoscopyon?

Ask questiwhat is cryoscopyon?

Cationic detergent - types of detergent, Cationic detergent - Types of Dete...

Cationic detergent - Types of Detergent These types of detergent are mainly acetates or chlorides of quaternary amines. Being much more restricted than the anionic detergents t

Aufabau principle, Why are the lanthanides and actinides series call the f-...

Why are the lanthanides and actinides series call the f-block

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd