Your mug contains 300 ml of coffee at 90 ° C. The coffee is too hot to drink. You decide to cool the coffee by dropping ice cubes at -20 ° C in the coffee. How many grams of ice do you need to add to the coffee to cool it down to 60 ° C?Discuss

Your mug contains 300 ml of coffee at 90 ° C. The coffee is too hot to drink. You decide to cool the coffee by dropping ice cubes at -20 ° C in the coffee. How many grams of ice do you need to add to the coffee to cool it down to 60 ° C?

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