What do you mean by rounding off numbers, Chemistry

Assignment Help:

Q. What do you mean by Rounding off numbers?

Rounding off numbers while you report a calculation your answer should have no more significant figures than the piece of data you used in your computation with the fewest number of significant figures. Therefore if you calculate the density of an object with a mass of 12.33 g in addition to a volume of 19.1 cm3 your answer must have only three significant figures. Though when you divide these quantities using your calculator it will show 0.6455497-lots more figures than you can report in your answer. You must round off the number to three significant figures or 0.646.


Related Discussions:- What do you mean by rounding off numbers

p-methoxybenzyl bromide reacts with ethanol, Why does p-methoxybenzyl brom...

Why does p-methoxybenzyl bromide reacts with ethanol faster than p-nitrobenzylbromide Solution) Because o-ch 3 is electron donating group while NO 2 is a electron withdrawing g

Define the methods of shelf life examination, Q. Define the Methods of shel...

Q. Define the Methods of shelf life examination? Methods of shelf life examination are sensory evaluation, chemical analysis and microbiological analysis.

What is paired comparison test, Q. What is paired comparison test? In p...

Q. What is paired comparison test? In paired comparison test, the assessor is presented with two products and asked to indicate whether there is a preference between them.

Mixed melting point - criteria of purity of organic compound, Mixed melting...

Mixed melting point - Criteria of purity of organic compound The melting point of two carefully mixed substances is known as mixed melting point. This can as well be used for

Determine mass to charge ratio of the electron, Q. Determine Mass to charge...

Q. Determine Mass to charge ratio of the electron? Ans. Eventually, Thomson was able to find the ratio of the electron's mass to its electrical charge (m/e). Regardless o

Radioactivity, what is the principal of radiometric titration

what is the principal of radiometric titration

Number of nodal centres for 2s orbital, Number of nodal centres for 2s orbi...

Number of nodal centres for 2s orbital: (1) 1        (2) 0        (3) 4        (4) 3 Ans: 1

Glucose information, What are the physical properties of Glucose?

What are the physical properties of Glucose?

Explain about pyrometallurgy, Q. Explain about Pyrometallurgy? Tri pyro...

Q. Explain about Pyrometallurgy? Tri pyrometallurgy, the concentrated ore is heated up to a high temperature and reduction is done with a appropriate reducing agent. The differ

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