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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.
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The phosphate of a metal has the formula MHPO 4. The formula of its chloride would be: (1) MCl (2) MCl 2 (
how to calculate equivalent weight of phenol
PbO2 + Cl_ gives Pb(OH)3_ + ClO_
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Doctors prescribe medicine based upon body weight. The recommended dose is 5.0 mg antibiotic per kg body weight and the antibiotic is dissolved to form a solution with a concentrat
Principle of conductometry?
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