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calculate the amount of (nh4)2 which must be added to 500 ml of 0.2 nh3 to yield a solution of ph 9.35 Answer is 10.494g but mine is coming 5.247

calculate the amount of (nh4)2 which must be added to 500 ml of 0.2 nh3 to yield a solution of ph 9.35 


Answer is 10.494g but mine is coming 5.247

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