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Express the following numbers to four si...

Express the following numbers to four significant figures.
(1) 6.608792 (2) 42.392800

Text Solution

Verified by Experts

1) As the fifth digit 7 is greater than 5, therefore the result will be xpressed as 6.609
2) It will be expressed as 42.39. the digit 2 is dropped since it is less than 5 (the figure is not rounded off to the next number)
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NARAYNA-SOME BASIC CONCEPTS OF CHEMISTRY-EXERCISE - IV
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  7. When burnt in air, 14.0g mixture of carbon and sulphur gives a mixture...

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  13. A hydrocarbon contains 10.5 g of carbon per gram of hydrogen. 1 L of v...

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  14. When K(2)Cr(2)O(7) mixed with H(2)SO(4) and thorooughly shaken with H(...

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  15. A 20 mL mixture of CO, CH4, and Helium (He) gases is exploded by an el...

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  16. 7.36g of a mixture of KCI and KI was dissolved in H(2)O to prepare 1 l...

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  17. Equal weights of Zn metal and iodine are mixed together and I(1) is co...

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  18. A hydrocarbon 'X' have 81% of carbon. Volume of CO(2) liberated at 298...

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