Help , I HONESTLY DONT UNDERSTAND MOLES .

[From: ] [author: ] [Date: 12-01-13] [Hit: ]

calculate the concentrations of these species at equilibrium.thanks for helping -Lol it thought you met the moles on your skin-I wish i can help you but sadly i dont understand moles either lol-http://www.chemteam.info/Mole/Mole.htmlSearch for other materials - both written and video. For videos,......

Br2(g) = 2Br(g)

is 1.1 x 10^ -3. If the initial concentrations are [Br2] = 6.3 x 10^ -2 M and [Br] = 1.2 x 10^-2 M, calculate the concentrations of these species at equilibrium.

thanks for helping <33

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Lol it thought you met the moles on your skin

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I wish i can help you but sadly i don't understand moles either lol

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http://www.chemteam.info/Mole/Mole.html

Search for other materials - both written and video. For videos, look for Kahn Academy and kentchemistry.

HTH

Note that #7, 9 and 10 have divisions in them, for example 22 is divided by 39.948 in #7. Your format was given only in multiplications, so I thought I mention the presence of the divisions.

6 . How many atoms are in 5.0 moles of neon ?
5.0 moles Ne x 6.022 x 10^23 atoms / mol = ____ atoms of Ne

7. how many moles are in 22 grams of argon ?
22 grams Ar x (1 mol / 39.948 g) = _____ moles Ar

8. How many molecules are in 3 moles of NaCl?
3 moles NaCl x 6.022 x 10^23 molecules / mol = ___ molecules NaCl

Comment: the correct term when discussing ionic compounds like NaCl is "formula units," not "molecules."

9. How many atoms are in 36.03 grams of carbon ?
36.03 C x (1 mol / 12.011 g) x 6.022 x 10^23 atoms/mol = atoms C

10 . What is the mass of 1.2 x 10^24 molecules of H2O ?
1.2 x 10 ^24 molecules H2O x (1 mol / 6.022 x 10^23 molecules) x 18.015 g/mol = g H2O

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