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

Why boron is electron-deficient, Why boron is electron-deficient (a) E...

Why boron is electron-deficient (a) Every atom has an octet; thus, this is not an electron-deficient compound. (b) The boron is electron-deficient because it has a sextet o

Side chain - nomenclature of simple aromatic compounds, Side chain - nomenc...

Side chain - nomenclature of simple aromatic compounds The alkyl or any other aliphatic group consisting of at least one carbon atom attached to the nucleus is termed as side c

Hybridization, hybridization in hydroxyl group

hybridization in hydroxyl group

Alkaline earths, GROUP 2: ALKALINE EARTHS   The elements known common...

GROUP 2: ALKALINE EARTHS   The elements known commonly as alkaline earths have atoms with the (ns) 2 design and almost always have the +2 oxidation state in their compound

Silica used in tlc and hplc column, What is difference among silica used in...

What is difference among silica used in TLC and HPLC column? Ans) TLC is known as thin layer chromatography. The simple methods works on the principle of adsorption, where as HP

Osazone formation - test of glucose, Osazone Formation - Test of Glucose ...

Osazone Formation - Test of Glucose Glucose on heating along with excess of phenyl hydrazine in acetic acid provides a yellow crystalline substance, m.pt. 205 ° C.

# title average life, Average life of a radioelement is the characteristics...

Average life of a radioelement is the characteristics property of the element. Explain

Sodium atom the number of electrons, For sodium atom the number of electron...

For sodium atom the number of electrons with m=0 will be: (1) 2        (2) 27      (3) 9          (4) 8 Ans: 7

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