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What is mass in grams of an ethanol mole...

What is mass in grams of an ethanol molecule, `C_2H_5OH` ?

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NCERT BANGLISH-CHEMICAL CALCULATION -Problems of Practice
  1. Calculate the formula weight of compounds K2CO3

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  2. What is the mass in grams of a calcium atom, Ca?

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  3. What is mass in grams of an ethanol molecule, C2H5OH ?

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  4. Calcualte the mass (in grams) of each of the following species. a. ...

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  5. Boric acid, H3 BO3 is a mild antiseptic and is often used as an eye wa...

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  6. CS2 is a colourless, highly inflammable liquid used in the manufacture...

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  7. Nitric acid, HNO3 is a colourless, corrosive liquid used in the manufa...

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  8. Obtain the moles of substances in the following. a. 3.43 g of C b...

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  9. How many molecules are there in 56 mg HCN ?

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  10. Calculate the following Number of molecules in 43 g NH3

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  11. Calculate the following Number of atoms in 32.0 g Br2

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  12. Calculate the following Number of atoms in 7.46 g Li

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  13. A substance on analysis, gave the following percentage composition, Na...

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  14. What is the simplest formula of the compound which has the following p...

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  15. A compound on analysis gave the following percentage composition: C - ...

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  16. An organic compound was found to have contained carbon = 40.65%, hydro...

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  17. A compound contains 32% carbon, 4% hydrogen and rest oxygen. Its vapou...

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  18. An acid of molecular mass 104 contains 34.6% carbon, 3.85% hydrogen an...

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  19. What is the simplest formula of the compound which has the following p...

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  20. Calculate the oxidation number of underlined elements in the following...

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