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Express the following to four significan...

Express the following to four significant figures: (i) 6.45372, (ii) 48.38250, (iii) 70000, (iv) `2.65986 xx 10^(3)`, (v) 0.004687

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(i) 6.454, (ii) 48.38, (iii) `7.000 xx 10^(4)`, (iv) `2.660 xx 10^(3)`, (v) 0.004687
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SUBHASH PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY -NUMERICAL PROBLEMS AND ANSWERS:
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  2. Express the following to four significant figures: (i) 6.45372, (ii) 4...

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  8. Convert 22.4 L into cubic metres.

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  9. Calculate the molar mass of water if it contains 50% heavy water (D(2)...

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  10. 60 cc of oxygen was added to 24 cc of carbon monoxide and the mixture ...

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  11. 200 cm^(3) of carbon monoxide is mixed with 200 cm^(3) of oxygen at ro...

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  12. Calculate the volume of oxygen required to burn completely a mixture o...

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  13. Calculate the mass of 50 cc of CO at STP (C=12, O=16)

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  14. Calculate the volumes at STP occupied by 6.023 xx 10^(23) molecules of...

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  15. Calculate the number of molecules in 1 kg of sodium chloride. [Na =23,...

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  16. Calculate the value of 1 a.m.u. in grams.

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  19. Calculate the normality of oxalic acid solutions containing 0.895 g cr...

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  20. 25 cm^(3) of ferrous ammonium sulphate solution require 20 cm^(3) of 0...

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