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How many moles of calcium carbonate (Ca...

How many moles of calcium carbonate `(CaCO_(3))` are present in `10 g` of the substance ? `(Ca = 40 u , C = 12 u, O = 16 u)`

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The correct Answer is:
`0.1` mol
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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
  1. Calculate the mass of 12.044 xx 10^(25) molecules of oxygen (O(2)).

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  2. What is the number of molecules in 1.5 moles of ammonia ?

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  3. How many moles of calcium carbonate (CaCO(3)) are present in 10 g o...

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  4. How many moles of O(2) are there in 1.20 xx 10^(22) oxygen molecu...

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  5. If one mole of nitrogen molecules weighs 28 g, calculate the mass of o...

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  6. How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 2...

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  7. What is the number of zinc atoms in a piece of zinc weighing 10 g ? ...

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  8. Calculate the mass of 3.011 xx 10^(24) atoms of carbon.

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  9. If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the ma...

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  10. How many atoms are there in 0.25 mole of hydrogen ?

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  11. Calculate the number of moles iin 12.044 xx 10^(25) atoms of phosphoru...

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  12. Calculate the number of molecules present in a drop of chloroform (...

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  13. What is the mass of 5 moles of sodium carbonate (Na(2)CO(3)) ? (Atom...

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  14. Calculate the number of molecules in 4 g of oxygen .

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  15. How many moles are represented by 100 g of glucose. C(6)H(12)O(6) ...

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  16. Calculate the mass in grams of 0.17 mole of hydrogen sulphide , H(2)...

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  17. Show by means of calculations that 5 moles of CO(2) and 5 moles of ...

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  18. Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. ...

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  19. (a) Define mole. What are the two things that a mole represents. (b)...

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  20. (a) What is meant by 'a mole of carbon atoms' ? (b) Which has more...

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