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Give the number of significant figures i...

Give the number of significant figures in each of the following :
` 1.89 xx 10^-4`

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CHETANA PUBLICATION-INTRODUCTION TO ANALYTICAL CHEMISTRY-EXAMPLE
  1. Give the number of significant figures in each of the following : 0...

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  2. Give the number of significant figures in each of the following : 1...

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  3. Give the number of significant figures in each of the following : 1...

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  4. Express the quantities in above with or without exponents as the case ...

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  5. Express the quantities in above with or without exponents as the case ...

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  6. Express the quantities in above with or without exponents as the case ...

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  7. Express the quantities in above with or without exponents as the case ...

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  8. Write each of the following in ordinary decimal form 3.49 xx 10^-11...

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  9. Write each of the following in ordinary decimal form : 3.75 xx 10^-...

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  10. Write each of the following in ordinary decimal form : 5.16 xx 10^...

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  11. Write each of the following in ordinary decimal form : 43.71 xx10 ...

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  12. Write each of the following in exponential notation : 0.011 xx 10^-3...

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  13. Write each of the following in ordinary decimal form : 143 xx 10^-2

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  14. Write each of the following in exponential notation : 0.00477 xx 10...

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  15. Perform each of the following calculations . Round off your answers to...

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  16. Perform each of the following calculations . Round off your answers to...

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  17. Perform each of the following calculations. Round off your answers to ...

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  18. Perform each of the following calculations. Round off your answers to ...

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  19. Perform the following operations : 3.971 xx 10^7+ 1.98 xx 10^4

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  20. Perform the following operations : 4.11 xx 10^(-3)+ 8.1 xx 10^(-4),

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