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b. The experimental procedure instructs you to add 35 mL of H2SO4 very slowly to your...

b. The experimental procedure instructs you to add 35 mL of H2SO4 very slowly to your solution. Why do you think it is important to slowly add the acid as opposed to quickly pouring it into the solution?

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Answer #1

Dissolution of H2SO4 in water is an exothermic process i.e Heat is released by the dissolution of H2SO4 in water

Heat of solution of H2SO4 = -96.2kJ/mol

dissolution of 98g of H2SO4 release 96.2 kJ of energy

Suppose you are adding 98g ( arrond 53ml) of H2SO4 in 100ml of water , the released heat is enough to raise the temperature of water for 230℃

So, in this suituation if you add H2SO4 suddenly then bursting will occure, so that it is necessary to add H2SO4 occure

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