Help please?
15.0g of an unknown substance is heated from 25.0°C to 34.0°C. If 60.6 J of energy is absorbed, identify the unknown substance using the specific heat.

aluminum
iron
silver
lead

Question

Help please? 
15.0g of an unknown substance is heated from 25.0°C to 34.0°C. If 60.6 J of energy is absorbed, identify the unknown substance using the specific heat.

aluminum
		iron
		silver
		lead

anonymous · Answer

attachment

anonymous · Answer

Okay so the formula is J/(grams x Degrees Celcius)
The joules you are given is 60.6
The grams is 15
The Degrees is the CHANGE in temperature which is 34 - 25 = 9
So:
60.6/(15*9)
Gives you 0.4488888888888
Which rounds to:
0.449

By checking that on the table you'll get your answer :)

anonymous · Answer

Thank you so much. I'm studying for the ACT and this book doesn't explain the answers too well. I have one more question? 

How many liters of chlorine gas can react with 56.0 grams of calcium metal at standard temperature and pressure? Show all of the work used to find your answer.

Ca + Cl2  CaCl2

anonymous · Answer

That one will take me a while but if I get it I'll send it to you in a private message

anonymous · Answer

Thank you, I really appreciate it!

mos1635 · Answer

shall i take it from here??

anonymous · Answer

You probably should, sorry I'm doing my homework and haven't had time to do it yet :P