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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
- What is the number of zinc atoms in a piece of zinc weighing 10 g ? ...
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- Calculate the mass of 3.011 xx 10^(24) atoms of carbon.
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- If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the ma...
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- How many atoms are there in 0.25 mole of hydrogen ?
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- Calculate the number of moles iin 12.044 xx 10^(25) atoms of phosphoru...
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- Calculate the number of molecules present in a drop of chloroform (...
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- What is the mass of 5 moles of sodium carbonate (Na(2)CO(3)) ? (Atom...
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- Calculate the number of molecules in 4 g of oxygen .
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- How many moles are represented by 100 g of glucose. C(6)H(12)O(6) ...
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- Calculate the mass in grams of 0.17 mole of hydrogen sulphide , H(2)...
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- Show by means of calculations that 5 moles of CO(2) and 5 moles of ...
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- Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. ...
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- (a) Define mole. What are the two things that a mole represents. (b)...
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- (a) What is meant by 'a mole of carbon atoms' ? (b) Which has more...
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- (a) Define gram atomic mass of a substance. How much is the gram atomi...
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- (a) Define gram molecular mass of a substance. How much is the gram m...
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- (a) What is meant by the 'molar mass' of a substance ? State the unit ...
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- Which of the following pair of element represents a mole ratio of 1 : ...
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- Which of the following correctly represents 360 g of water? (i) 2 mo...
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- If 32 g of sulphur has x atoms, then the number of atoms in 32 g of o...
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