while diluting an acid , why is it recommended that the acid should be added to h20 & not water to acid
why should curd&sour substance not be kept in brass & copper vessels ?
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QUESTION :
while diluting an acid , why is it recommended that the acid should be added to h20 & not water to acid
Dilution of concentrated acid is an exothermic process. If water is added to a concentrated acid, the heat generated may cause the mixture to splash out and cause burns. When the acid is added to water slowly with constant stirring, the mixture will not splash out.
QUESTION :
why should curd&sour substance not be kept in brass & copper vessels ?
Curd and sour substances contain acids. Acids react with metals to produce salt and hydrogen gas. So, if such substances are kept in copper container, the acid will react and the container will be corroded.
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