Chit Chat

willylove · 11-16-2009, 11:39 PM

I don't have anything else to offer at this time except reputation to the ones who can help me show the work for any of these problems...im sick of the teacher i did it all on my graphic calculator but noo i need the work...i got the answers though.

Using average atomic mass for each of the following elements. calculate the number of atoms present in each of the following samples...

a. 10.81 amu of boron - answer is 1
b. 320.7 amu of sulfur - answer is 10
c. 19,697 amu of gold - answer is 100
d. 19,695 amu of xenon - answer is 150
e. 3588.3 amu of aluminum - answer is 133

in 24.02 g of carbon there are __ carb on atoms... answer is 1.25x10^24

what mass of cobalt contains the same number of atoms as 57.0 g of fluorine? i got 177 grams...help me show work

calculate the average mass in grams of 1 atom of oxygen

I got 2.66x10^-23

Thanks all i need is the work if possible..

iluvchina · 11-17-2009, 12:14 AM

a) 10.81 amu B * (1 atom B/10.81amu B) = 1 Atom B
b) 320.7 amu Sulfur * (1 atom S/32.07amu S) = 10 Atoms S
c) 19,697 amu Au * (1 atom Au/196.97amu Au) = 100 Atoms Au
d) 19,695 amu Xe * (1 atom Xe/131.3amu Xe) = 150 Atoms Xe
e) 3588.3 amu Al * (1 atom Al/26.98amu Al) = 133 Atoms Al

in 24.02 g of carbon there are __ carb on atoms... answer is 1.25x10^24

24.02g C * (1 mole C/12.011g) * ((6.022*10^23)/1mole C) = 1.204 * 10^24 Atoms (my answer is different from yours...no idea why)

what mass of cobalt contains the same number of atoms as 57.0 g of fluorine? i got 177 grams...help me show work

57g F * (1 mole F/19g F) * ((6.022*10^23atoms)/1mole F) = 1.8066 * 10^24 Atoms
1.8066*10^24 Atoms * (1mole Co/(6.022*10^23Atoms)) * (58.93g Co/1mole Co) = 176.79g Co

calculate the average mass in grams of 1 atom of oxygen

1 Atom O * (1mole O/(6.022*10^23Atoms O) * (16g O/1mole O) = 2.657*10^-23 g O

sibble · 11-17-2009, 12:16 AM

EDIT: nvm, iluvchina just owned me. I got the same answer for the 2nd problem as you did too.

Also wtf, how do you do it without showing work? Seriously, you can't rely on your calculator for everything. answers.yahoo.com is an amazing homework help site too.

iluvchina · 11-17-2009, 12:30 AM

Hey willylove I received your message but I can't send a pm back since that was my first post. I am pretty sure you can post the rest of the problems and someone like sibble might be able to help you out.

FreeCash · 11-17-2009, 12:31 AM

Quote:

Originally Posted by iluvchina

a) 10.81 amu B * (1 atom B/10.81amu B) = 1 Atom B
b) 320.7 amu Sulfur * (1 atom S/32.07amu S) = 10 Atoms S
c) 19,697 amu Au * (1 atom Au/196.97amu Au) = 100 Atoms Au
d) 19,695 amu Xe * (1 atom Xe/131.3amu Xe) = 150 Atoms Xe
e) 3588.3 amu Al * (1 atom Al/26.98amu Al) = 133 Atoms Al

in 24.02 g of carbon there are __ carb on atoms... answer is 1.25x10^24

24.02g C * (1 mole C/12.011g) * ((6.022*10^23)/1mole C) = 1.204 * 10^24 Atoms (my answer is different from yours...no idea why)

what mass of cobalt contains the same number of atoms as 57.0 g of fluorine? i got 177 grams...help me show work

57g F * (1 mole F/19g F) * ((6.022*10^23atoms)/1mole F) = 1.8066 * 10^24 Atoms
1.8066*10^24 Atoms * (1mole Co/(6.022*10^23Atoms)) * (58.93g Co/1mole Co) = 176.79g Co

calculate the average mass in grams of 1 atom of oxygen

1 Atom O * (1mole O/(6.022*10^23Atoms O) * (16g O/1mole O) = 2.657*10^-23 g O

lol, you just got tricked into doing his homework for him. He ALWAYS ask for homework help and makes false promises of paying ppl.

he probably got the answers in the back of the book and still didnt know how to solve the problem LOL...

iluvchina · 11-17-2009, 12:34 AM

Oh well. I didn't expect to get paid anyways. And he just offered to paypal me if I did more. ~_~

willylove · 11-17-2009, 12:36 AM

i didnt pay $120 for nothing for this darn calculator..

11-16-2009, 11:39 PM	#1 (permalink)
willylove Senior Member Join Date: Jul 2009 Posts: 209 Reputation: -3 *cBay Rating:*	Help me show my work for my chemistry problems..did them but no work...[reputation] I don't have anything else to offer at this time except reputation to the ones who can help me show the work for any of these problems...im sick of the teacher i did it all on my graphic calculator but noo i need the work...i got the answers though. Using average atomic mass for each of the following elements. calculate the number of atoms present in each of the following samples... a. 10.81 amu of boron - answer is 1 b. 320.7 amu of sulfur - answer is 10 c. 19,697 amu of gold - answer is 100 d. 19,695 amu of xenon - answer is 150 e. 3588.3 amu of aluminum - answer is 133 in 24.02 g of carbon there are __ carb on atoms... answer is 1.25x10^24 what mass of cobalt contains the same number of atoms as 57.0 g of fluorine? i got 177 grams...help me show work calculate the average mass in grams of 1 atom of oxygen I got 2.66x10^-23 Thanks all i need is the work if possible..

11-17-2009, 12:16 AM	#3 (permalink)
sibble Member Join Date: Aug 2009 Posts: 51 Reputation: 3 *cBay Rating:*	EDIT: nvm, iluvchina just owned me. I got the same answer for the 2nd problem as you did too. Also wtf, how do you do it without showing work? Seriously, you can't rely on your calculator for everything. answers.yahoo.com is an amazing homework help site too. Last edited by sibble; 11-17-2009 at 12:22 AM..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Can someone check this work please [chemistry]	willylove	Chit Chat	3	11-12-2009 01:37 AM
Reputation for 2 chemistry questions stuck on	willylove	Chit Chat	5	11-10-2009 02:03 AM
How did your life work out(Work)	eskimo	Chit Chat	11	09-08-2009 11:42 AM
Solve 2 math problems and show work for 5 bucks	Crinklypaper	Chit Chat	22	09-30-2008 02:14 AM
My Work ...	retlaw	Graphics Section	0	02-15-2008 08:10 PM

11-17-2009, 12:14 AM	#2 (permalink)
iluvchina Junior Member Join Date: Nov 2009 Posts: 3 Reputation: 0 *cBay Rating:*	a) 10.81 amu B * (1 atom B/10.81amu B) = 1 Atom B b) 320.7 amu Sulfur * (1 atom S/32.07amu S) = 10 Atoms S c) 19,697 amu Au * (1 atom Au/196.97amu Au) = 100 Atoms Au d) 19,695 amu Xe * (1 atom Xe/131.3amu Xe) = 150 Atoms Xe e) 3588.3 amu Al * (1 atom Al/26.98amu Al) = 133 Atoms Al in 24.02 g of carbon there are __ carb on atoms... answer is 1.25x10^24 24.02g C * (1 mole C/12.011g) * ((6.02210^23)/1mole C) = 1.204 10^24 Atoms (my answer is different from yours...no idea why) what mass of cobalt contains the same number of atoms as 57.0 g of fluorine? i got 177 grams...help me show work 57g F * (1 mole F/19g F) * ((6.02210^23atoms)/1mole F) = 1.8066 10^24 Atoms 1.806610^24 Atoms (1mole Co/(6.02210^23Atoms)) (58.93g Co/1mole Co) = 176.79g Co calculate the average mass in grams of 1 atom of oxygen 1 Atom O * (1mole O/(6.02210^23Atoms O) (16g O/1mole O) = 2.657*10^-23 g O

11-17-2009, 12:30 AM	#4 (permalink)
iluvchina Junior Member Join Date: Nov 2009 Posts: 3 Reputation: 0 *cBay Rating:*	Hey willylove I received your message but I can't send a pm back since that was my first post. I am pretty sure you can post the rest of the problems and someone like sibble might be able to help you out.

11-17-2009, 12:34 AM	#6 (permalink)
iluvchina Junior Member Join Date: Nov 2009 Posts: 3 Reputation: 0 *cBay Rating:*	Oh well. I didn't expect to get paid anyways. And he just offered to paypal me if I did more. ~_~

11-17-2009, 12:36 AM	#7 (permalink)
willylove Senior Member Join Date: Jul 2009 Posts: 209 Reputation: -3 *cBay Rating:*	i didnt pay $120 for nothing for this darn calculator..

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Sponsored Links

Chit Chat

This is a discussion about Help me show my work for my chemistry problems..did them but no work...[reputation] within the Chit Chat section, where you will Anything that doesn't fit in the other forums should most likely go here.