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150 g of liquid water at $$20^\circ\text{C}$$ is mixed with 40 g of ice at $$0^\circ\text{C}$$ in a coffee cup calorimeter. The final temperature in $$^\circ\text{C}$$ reached will be, assuming no heat loss or gain by the surroundings, given that the latent heat of ice is 334.72 J/g and the specific heat of water is 4.2 J/g $$^\circ\text{C}$$
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