Chemistry help, please answer any of the following:?

1. An average healthy person excretes 1.50L of urine each day, corresponding to a mass of 1.530 x 10(3 cubed). What is the density of normal urine?

2. How much heat is needed to warm 250.0g of water from 22.0 degrees (celsius) to 35.0 degrees (celsius)?

3. What is the specific heat of a metal if 548 calories are required to warm 27.0 grams of the metal by 12.5 degrees (celsius)? Express the answer in Joules/g (celsius)

Feel free to explain, thank you.