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April 18, 2014

April 18, 2014

Posted by **Amber** on Saturday, February 2, 2013 at 10:22pm.

- college general chemistry -
**Devron**, Saturday, February 2, 2013 at 10:34pm0.750cm*8.25cm^= volume in cm^3

- college general chemistry -
**Amber**, Saturday, February 2, 2013 at 11:17pmDevron thats not right it said incorrect

- college general chemistry -
**Devron**, Saturday, February 2, 2013 at 11:31pmThe volume of a rectangular solid is w*l*h= cm*cm*cm=cm^3

I calculated 6.19cm^3, is this what you calculated when performing the calculations?

- college general chemistry -
**Devron**, Saturday, February 2, 2013 at 11:34pmUnless they asked you to convert it to different units, I am not sure what to tell you at this time.

- college general chemistry -
**Devron**, Saturday, February 2, 2013 at 11:37pmgoogle, area* thickness= volume and relook at the problem to come up with an answer.

- to Amber---college general chemistry -
**DrBob222**, Sunday, February 3, 2013 at 12:20amDon't leave us in the dark. Saying it is wrong without showing your work leaves us with no alternative but to ignore your post. Show your work and we can find the error.

The correct answer is 6.1875 cc but you must round that to the correct number of significant figures.

- college general chemistry -
**Amber**, Sunday, February 3, 2013 at 12:37amI am so lost I imput 6.188 because it's online homework and it said my answer was wrong you don't have to convert because it has the spot where you put the answer then cm^3

- college general chemistry -
**DrBob222**, Sunday, February 3, 2013 at 12:47amI suspect you typed in too many significant figures.

8.25 x 0.750 = 6.18750 cc. You are allowed three significant figures (0.750 has three and 8.25 has three so three it is. So you round 6.18750 to three places. I would round that to 6.19 cc. Try 6.19 cc. That's the right answer.

- college general chemistry -
**Amber**, Sunday, February 3, 2013 at 12:51amit's right thank you so much so i just need to learn my significant figures yeah

- college general chemistry -
**DrBob222**, Sunday, February 3, 2013 at 12:56amGood. You also learned something else. If you had typed in your work about 2.5 hours ago when we first responded, we would have caught the error then and you would have saved more than 2 hours of your valuable time.

- college general chemistry -
**Amber**, Sunday, February 3, 2013 at 12:58amit's right thank you so much so i just need to learn my significant figures yeah

- college general chemistry -
**Amber**, Sunday, February 3, 2013 at 12:58amit's right thank you so much so i just need to learn my significant figures yeah

- college general chemistry -
**Devron**, Sunday, February 3, 2013 at 1:04amThat should have been the question that I asked instead of posting the correct answer with the number of correct sig figs. Dr. Bob222 is excellent, and I l have been learning from him as well.

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