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You are asked to prepare 1.2 L of a HCN/NaCNbuffer that has a pH of 9.51...

You are asked to prepare 1.2 L of a HCN/NaCNbuffer that has a pH of 9.51 and an osmotic pressure of 2.00 atm at 298 K.

What masses of HCN and NaCNshould you use to prepare the buffer? (Assume complete dissociation of NaCN.)

Express your answers using two significant figures separated by a comma.

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