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Standard XII
Chemistry
Physical Properties (Group 1)
39. How many ...
Question
39. How many copper atoms are present in 13.05g of copper?
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How many moles of copper are equivalent to
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A piece of copper weighs 0.635 g. How many atoms of copper does it contain?
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Question 39
A gold sample contains
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of gold and the rest copper. How many atoms of gold are present in one gram of this sample of gold?
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A gold sample contains 90% of gold and the rest copper. How many atoms of gold are present in one gram of this sample of gold? (
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How many molecules of water are present in one formula unit of copper sulphate pentahydrate?
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