# Chem Help????

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An alloy has a specific heat of 1.77 cal/g degrees C and is at 25 degrees C. When it's dropped into warm water, the alloy absorbs 229 cal of heat. If the final temperature of the alloy is 37 degrees C, what is it's mass?

Help! I don't understand ANYTHING in this subject. Explanation and the answer??

An alloy has a specific heat of 1.77 cal/g degrees C and is at 25 degrees C. When it's dropped into warm water, the alloy absorbs 229 cal of heat. If the final temperature of the alloy is 37 degrees C, what is it's mass?

Help! I don't understand ANYTHING in this subject. Explanation and the answer??

##### 1 Answer

#### Explanation:

This is a common question regarding heat absorption of a material. Seems like we use Calories as an energy unit, which is a bit unconventional, but nontheless here is how to do it:

Using the equation

Now from interpreting the question, it seems the alloy was 25 degrees C at first but heated up to 37 degrees after being put in hot water-so it heated up by 12 degrees Celsius (or Kelvin, as the scales are related). So

In the question, we are given

Plugging everything in: