A sample of chalk contained as impurity a form of clay
A sample of chalk contained as impurity a form of clay which loses 14.5 % of its weight of water on prolong heating. 5 g of chalk on heating shows in weight , due to evolution of CO2 and H20 by 1.507 g . calculate % of chalk in the sample.
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a sample of chalk contained as impurity a form of clay which loses 145 of its weight of water on prolong heating 5 g
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