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Chemistry - balance equations!

2HCL+NaOH→NaCl+H2O

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Reply 1
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Artimus
11
Are you asking if this is balanced?
(edited 9 years ago)
Reply 2
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Heretohelp!
OP
9
What about the CL?

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I think the CL is meant to be Cl - Chlorine


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Reply 4
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Heretohelp!
OP
9
Yeah I know that lol I mean it's not balanced is it?


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Nope, it's not balanced. Just remove the 2 from HCl


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Reply 6
Avatar for Heretohelp!
Heretohelp!
OP
9
But you have to keep the 2 because it's 2 moles of HCL

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HCl+NaOH→NaCl+H2O

that's balanced
2 moles refers to concentration, not the formula
By 2 moles, do you mean n= 2 mol? Because molar ratio and moles are two different things


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Original post by rachel479
2 moles refers to concentration, not the formula


2 moles does not mean concentration. You're mixing it up with molarity


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It says 2M of HCL

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Original post by Heretohelp!
It says 2M of HCL

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A capital M (called molarity)means concentration (mol dm-3). This has nothing to do with the chemical equation, so just leave it when balancing.


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Original post by ConsultantHunter
A capital M (called molarity)means concentration (mol dm-3). This has nothing to do with the chemical equation, so just leave it when balancing.


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OHHHH! that makes alot more sense now thank you! !
But wait so how do you know how many moles there are, would you have to calculate it or do they sometimes tell you

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Original post by Heretohelp!
OHHHH! that makes alot more sense now thank you! !
But wait so how do you know how many moles there are, would you have to calculate it or do they sometimes tell you

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You're welcome :smile: Sometimes it's given to you and sometimes you have to calculate it using:
n= concentration x volume
Or
n = mass / molar mass

again, n doesn't affect the balancing of the equation


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(edited 9 years ago)
Thankyou yeah I've learnt that formula but thank you for helping :smile:.
Btw just one more question if they tell you the moles of a substance what unit do they write it in? :getmecoat:

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Original post by Heretohelp!
OHHHH! that makes alot more sense now thank you! !
But wait so how do you know how many moles there are, would you have to calculate it or do they sometimes tell you

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so moles does mean concentration?
Original post by Artimus
Are you asking if this is balanced? As it is.


NaOH + HCl = NaCl + H2O (simple neutralization reaction, where everything is on a 1:1 ratio)
M = Molarity = Concentration = C

Measured in gdm^3 or Molddm^3

N = Number of moles = moles
Original post by Heretohelp!
Thankyou yeah I've learnt that formula but thank you for helping :smile:.
Btw just one more question if they tell you the moles of a substance what unit do they write it in? :getmecoat:

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mol :smile:


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