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Chemistry 14 Online
OpenStudy (superhelp101):

2. Using the experimental specific heat capacity value that you determined in Part II of the lab, what is the most probable identity of the metal that you examined?

OpenStudy (superhelp101):

@JoannaBlackwelder could u help me?

OpenStudy (joannablackwelder):

I'll try. :) What did you get your specific heat capacity to be?

OpenStudy (superhelp101):

Part1: .3439 degrees in Celsius Part 2: .208 degrees Celsius

OpenStudy (joannablackwelder):

The specific heat should not be only in units of deg C. I thought we found them in J/(g*deg C)

OpenStudy (superhelp101):

oh yes sorry

OpenStudy (joannablackwelder):

And since the question asks us to use the part II number, lets focus on the .208

OpenStudy (joannablackwelder):

No worries. :)

OpenStudy (joannablackwelder):

Here is a table of specific heats of common substances in J/(g*deg C) http://www2.ucdsb.on.ca/tiss/stretton/database/Specific_Heat_Capacity_Table.html

OpenStudy (joannablackwelder):

Which one is the closest metal?

OpenStudy (superhelp101):

sand?

OpenStudy (joannablackwelder):

Firstly, sand is not a metal and we already know that it is some kind of metal.

OpenStudy (joannablackwelder):

Also, look at your numbers and check an issue of dyslexia. :)

OpenStudy (superhelp101):

how do I know which one of those are metals?

OpenStudy (joannablackwelder):

Ones that are metals on the periodic table. Ex: gold, iron, etc.

OpenStudy (joannablackwelder):

But really, the main issue is that the number that you got is .208 and that is quite different from .280

OpenStudy (joannablackwelder):

Sorry, .290

OpenStudy (superhelp101):

hmm.. so could .208 be wrong

OpenStudy (joannablackwelder):

Well, yes, but I think it is more likely that your conclusion that the meal as sand is wrong. :)

OpenStudy (joannablackwelder):

What numbers on the chart are closer to .208 than .290?

OpenStudy (superhelp101):

.240 ? the silver

OpenStudy (joannablackwelder):

That is closer. :)

OpenStudy (joannablackwelder):

Are there any closer numbers than that?

OpenStudy (superhelp101):

tin .21

OpenStudy (joannablackwelder):

:)

OpenStudy (joannablackwelder):

Are there any number closer than that?

OpenStudy (joannablackwelder):

*numbers

OpenStudy (superhelp101):

i can't find any

OpenStudy (joannablackwelder):

Good. Then that is your metal. :)

OpenStudy (superhelp101):

oh that's it?

OpenStudy (joannablackwelder):

yup

OpenStudy (joannablackwelder):

Unless you can find a chart that gets you a number closer than tin...

OpenStudy (superhelp101):

oh ok. Yay! Thank you very much!!

OpenStudy (joannablackwelder):

But it is pretty darn closer. :) You're welcome.

OpenStudy (joannablackwelder):

*close haha

OpenStudy (superhelp101):

haha :)

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