Thursday

September 18, 2014

September 18, 2014

Posted by **christine** on Sunday, October 24, 2010 at 8:53pm.

please help

thanks

Metal Specific Heat (J/g-C)

Al (s) 0.900

Au(s) 0.129

Cu(s) 0.385

Fe(s) 0.444

Hg(l) 0.139

H2O(l) 4.184

C2H5OH(l) 2.46

A piece of metal at a temp of 95.0oC and a mass of 67.0 g is dropped into a beaker of water containing 100 g at a temp. of 30.0oC. If the final temperature reached is 42.7.0oC, what is the identity of the metal?

the sum of the heats gained is zero.

heatgainedmetal+heatgainedwater=0

95*cm*(30-95)=100*4.18(42.7-30)

1.28

would it be Au?

- chemistry -
**DrBob222**, Sunday, October 24, 2010 at 10:40pmI don't think so.

I think the 95 you have listed should be 67 g (at least from the post) and delta T for the metal is (Tfinal-Tintial). The final T from the problem is 42.7 and the initial is 95 isn't it? Check your numbers in the post. That may be a typo.

**Answer this Question**

**Related Questions**

CHEMISTRY - really really need help w/this problem I think i figured it out but...

Belinda, Math - Thank you I did figure it out i think: so the problem was ((w)-(...

Chemistry - I did a chem lab and now im not sure if im doing my calculations ...

Chemistry - I did a chem lab and now im not sure if im doing my calculations ...

Chemistry - Ok I think I figured this out but im not sure if its right please ...

math - Factorial notation problem. Please help? Hi, I am stuck on this maths ...

math - never mind what i figured that out but i cant seem to figure this out (x^...

i really, really, really need help - what coordinate point is the solution to ...

Functions - Find the sum of the 50 greatest negative integers. I'm supposed to ...

College Chemistry - For my homework I got this problem that my professor never ...