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Calculate the molarity of a sodium hydroxide if 118.63 mL of the solution is needed to neutralize 180 mL of 0.109 M oxalic acid. The equation for the reaction is

H2C2O4 (aq) + 2 NaOH (aq) ------ 2 Na (aq) + C2O4 -2 (aq)
+ H2O (aq)

2006-06-24 15:10:58 · 9 answers · asked by blynn 1 in Science & Mathematics Chemistry

9 answers

(0.109moles/1000ml)*180ml = 0.01962

one mole of oxalic acid needs 2 moles of sodium hydroxide that makes it 0.03924 moles

If 118.63 ml has 0.03924 moles
Then 1000 ml would have.... 0.33077 moles

That makes it 0.3308 M

2006-06-24 18:53:11 · answer #1 · answered by Giridhar 2 · 0 0

I looked at the other 3 peoples' questions, and they didn't divulge the answer. I hate to be the fink. I have the answer on my calculator. Lookit......I teach chemistry, and I'd love to help you, but I really want to make sure you're learning it, too. Email me with chem questions anytime at fortitudinousskeptic@yahoo.com
I tutor whoever by email. Why don't you give me what you think the answer is, that way I can see what you know and what you don't. I'll help you find it.

2006-06-24 15:18:22 · answer #2 · answered by Anonymous · 0 0

Just balance the equation, change it to moles, set up a ratio using the coefficients and change back.

2006-06-24 15:13:58 · answer #3 · answered by Pirate_Wench 5 · 0 0

Use (MV)/N=(mv)/n

where M,m are molarities of the corresponding reacting compounds;
V,v are the respective volumes;
and N,n are the number of moles of the respective reactants.

2006-06-24 15:21:38 · answer #4 · answered by Anonymous · 0 0

Do your own homework.

You start by finding the grams per mole of what you are dealing with here.

2006-06-24 15:12:50 · answer #5 · answered by agropelter 3 · 0 0

uuuuuuuuuuuuuuummmmmmmm....oh i no. The answer is 2.

2006-06-24 15:15:09 · answer #6 · answered by Anonymous · 0 0

NO! I hate chemistry! I hated in school! I hated it in college! I hate it now!

2006-06-24 15:13:50 · answer #7 · answered by ♥*´`*ღPink♥*´`*•.¸¸ 4 · 0 0

NO, Your hydrogen is not balanced

2006-06-24 15:15:05 · answer #8 · answered by Mojo Jojo 3 · 0 0

do your own homework

2006-06-24 15:13:07 · answer #9 · answered by tony pepperoni 3 · 0 0

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