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Introduction of VSEPR

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Question

calculate the number of protons in 30 gram of caco3 to the power minus 2 ion?

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Solution

Dear if its CO3^-2 ,then total protons in ion is (C + 3 Oxygen atoms= 6 +3x 8= 30 protons) Now 30g = ½mole NA/2 molecules or ions; 1 molecule(ion) = 30 proton . NA/2 molecule contains. =30x NA/2 protons

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