A Cu-Ni alloy with 45 wt%Ni (the balance is wt%Cu) is slowly cooled from 1500oC to a temperature at which the last liquid is about to solidify. Using the magnified section of the Cu-Ni phase diagram shown in Fig. 9.3 (Callister 8e), what is the composition of the liquid at that temperature? Express your answer in wt%Ni. A maximum tolerance of +/- 5% is allowed in your answer.


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