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willylove · 11-11-2009, 06:58 PM

I need help how would I do this..?

What mass of calcium metal contains the same number of atoms as 12.16 g of magnesium? what mass of calcium metal contains the same number of atoms as 24.31 g of magnesium?

Calculate the number of atoms present in each of the following samples.

320.7 amu of sulfur
19,695 amu of xenon
3588.3 amu of aluminum

Thanks to who helped me.

And I'll give reputation to whoever can help and if I understand it or help me do it.

Southernx · 11-11-2009, 07:01 PM

Avogadro's number?

1stStrike · 11-11-2009, 07:03 PM

Quote:

Originally Posted by Southernx

Avogadro's number?

6.022*10^23 atoms/mol and use the atomic weight (gm/mol) to do the conversion

JLick · 11-11-2009, 07:04 PM

Using average atomic masses eh?

Southernx · 11-11-2009, 07:07 PM

Quote:

Originally Posted by 1stStrike

6.022*10^23 atoms/mol and use the atomic weight (gm/mol) to do the conversion

i know what it is >.>

Qamar3212 · 11-12-2009, 01:39 AM

check your other thread, i expalined how to do this

....

netonet · 11-12-2009, 07:02 AM

do you have hair on your head? i hope non ... because you are reading chemistry .... lol .. just kiddy. no ... i like my hair lol

sweetdreams · 11-12-2009, 09:00 AM

I thought I already answered a thread like this yesterday?

11-11-2009, 06:58 PM	#1 (permalink)
willylove Senior Member Join Date: Jul 2009 Posts: 212 Reputation: -3 *cBay Rating:*	calculate the number of atoms present? and chemistry question I need help how would I do this..? What mass of calcium metal contains the same number of atoms as 12.16 g of magnesium? what mass of calcium metal contains the same number of atoms as 24.31 g of magnesium? Calculate the number of atoms present in each of the following samples. 320.7 amu of sulfur 19,695 amu of xenon 3588.3 amu of aluminum Thanks to who helped me. And I'll give reputation to whoever can help and if I understand it or help me do it.

11-11-2009, 07:01 PM	#2 (permalink)
Southernx Senior Member Join Date: Aug 2009 Posts: 421 Reputation: -71 *cBay Rating:*	Avogadro's number? __________________ FUCKING FAST ASS INSTANT ASS INVITES GOD DAMN EGO too big.

11-11-2009, 07:04 PM	#4 (permalink)
JLick Senior Member Join Date: Sep 2009 Posts: 1,344 Reputation: 94 *cBay Rating:*	Using average atomic masses eh? __________________

11-12-2009, 07:02 AM	#7 (permalink)
netonet Junior Member Join Date: Oct 2009 Posts: 24 Reputation: 0 *cBay Rating:*	do you have hair on your head? i hope non ... because you are reading chemistry .... lol .. just kiddy. no ... i like my hair lol __________________ Certified Packaging Usa in USA

11-12-2009, 09:00 AM	#8 (permalink)
sweetdreams Senior Member Join Date: Dec 2007 Posts: 4,588 Reputation: 127 *cBay Rating:*	I thought I already answered a thread like this yesterday? __________________ http://www.prizerebel.com/index.php?r=38357 http://www.rewards1.com/index.php?referrer_id=864 http://www.moola.com A search engine that gives back http://www.easymazuma.com/index.php?id=1415 EARNED lots of money here HIGH PAYING http://5361154.e-gold.com/ Please help me out by making a donation http://www.gugold.com/index.php?ref=5361154 Earn 210% only 5 cents Instant payout

11-12-2009, 01:39 AM	#6 (permalink)
Qamar3212 Senior Member Join Date: Apr 2008 Posts: 116 Reputation: 0 *cBay Rating:*	check your other thread, i expalined how to do this ....

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