Chemistry, 26.02.2021 23:10 zaiinab

PLEASE ANSWER THESE QUICKLY 1. A piece of unknown metal was discovered at a mine. Upon examination, it had a mass of 45.5 grams, and absorbed 250.5 Joules of heat when heated 43.0 degrees Celsius. It was the hope of the finder that the metal was gold. What is the specific heat of the metal? Is it gold?

2. A sample of platinum was heated from 31.00C to 51.00C, and it took 62.2 calories of heat to do so. What was the mass of the piece of platinum?

3. What is the specific heat of titanium if the temperature of a 36.7 gram sample of the metal is heated by 4.80C when 91.6 Joules of heat is added?

4. What is the metal composition of a statue stolen from a French Museum if it took 350 Joules of heat to warm the statue 7.070C, and the statue weighs 55 grams?

5. How many Joules of heat are required to raise the temperature of 20.0 grams of iron from 26.00C to 72.00C?

6. A 63.94 gram sample of unknown metal was heated, and then placed into a beaker containing 16.55 grams of water. The water rose from 15.00C to 35.50C. If the metal starts at 85.50C, then what is the identity of the unknown metal?

7. If 85.5 grams of chromium are placed into a container of water, and the temperature of the water raises 35.50C, how many grams of water are being heated, if the metal was cooled 72.50C?

8. How many Joules of heat would it take to heat up the entire ocean by 1.00C? The volume of the ocean is 70,086,000 mi³.

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