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What is the mass of a sample of water that receives 2000 calories and its temperature rises from 60 degrees C to a boil?

This is one of the questions on my review guide my teacher gave me and I have a test tomorrow and have no idea how to find the answer to this question! If someone could give the formula to find mass or the steps that would be awesome and would help me ace the test tomorrow

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Edward C. | Caltech Grad for math tutoring: Algebra through CalculusCaltech Grad for math tutoring: Algebra ...
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The specific heat of water is 1 in calorie - gram - degree C units, which means that 1 calorie will raise 1 gram of water by 1 degree C
So if the water receives 2000 calories and goes up 40 degrees C there must be 50 grams of water 
The formula is Mass = Calories / Temperature change