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Saphen

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Posted: Tue Jul 07, 2009 8:26 pm

Ryu Blazer

Kazyan

I think I can help. I remember about half the stuff from Chem last year.

You wouldnt happen to understand Acid-Base equilibrium?

thermal equilibrium-yes. Acid-base equilibrium-no

Posted: Tue Jul 07, 2009 8:26 pm

Ryu Blazer

You wouldnt happen to understand Acid-Base equilibrium?

Yep. Ask away.

Kazyan

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countgraves

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Posted: Tue Jul 07, 2009 8:29 pm

Nora Thorsen

All I wanted was something sweet. *sobs*

*swats her Justice paddle at the snakes* I need an adult!

{-pegs her with a rapped caramel and goes back to playing dead- x-x

oh and for referance;
In these rounds folks? There's no sun right? Like charging from the sun would be bogus in this weather; correct?}

Posted: Tue Jul 07, 2009 8:29 pm

Kazyan

Ryu Blazer

You wouldnt happen to understand Acid-Base equilibrium?

Yep. Ask away.

How to calculate the Ph of a 0.02M hydrazine solution (H2NNH2) with hydrazine being a weak base. Its Kb= 1.3x10^-6
@Saphen- I know who to ask when I have a question on that then. blaugh

Ryu Blazer

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The Haelstrom Fist

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Posted: Tue Jul 07, 2009 8:30 pm

Nora Thorsen

All I wanted was something sweet. *sobs*

*swats her Justice paddle at the snakes* I need an adult!

I'm 19.

I legally am an adult in this country! biggrin KEEKake-

Also, Darth, when you get a chance, check the first post of my match. I'd venture that's the best representation of Deitric ever.

Posted: Tue Jul 07, 2009 8:32 pm

Logs are involved.

Designated Hero

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Ryu Blazer

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Posted: Tue Jul 07, 2009 8:35 pm

I just need to be walked through the problem. Once I am and understand it then Ill be ok. My instructor doesnt do well to represent what was done in his answer sheet. He just throws it down and we are supposed to understand where the numbers came from and why they were used. Thats my biggest issue right now. I see the problem and its answer but I cant put together the middle stuff.

Posted: Tue Jul 07, 2009 8:38 pm

{Somebody answer me?...I dun care how much you hate the turnip; That's right right?

Charging from the sun round two is bogus at best-

Somebody point at me or something; I need confirmation. XD}

countgraves

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Kazyan

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Posted: Tue Jul 07, 2009 8:39 pm

Ryu Blazer

Kazyan

Ryu Blazer

You wouldnt happen to understand Acid-Base equilibrium?

Yep. Ask away.

How to calculate the Ph of a 0.02M hydrazine solution (H2NNH2) with hydrazine being a weak base. Its Kb= 1.3x10^-6
@Saphen- I know who to ask when I have a question on that then. blaugh

*brushes up on molarity*

Uh...-log10(1.3x10^-6) would be the Ph of 1.0 M, one mole per liter...so, 0.02 M is one mole per 50 liters. Uh.

*calculates*

I really don't think I did this right, but, that log value would get close to 7. The calculator said the value was -5.88, so get rid of the minus sign for the pH to get 5.88. 7 - 5.88 = 1.12; 1.12 / 50 =~ 0.02, 7 + 0.02 =~ 7.02. (Those steps cut the distance between 5.88 and 7 down by a factor of 50)

Like I said, I really don't think I did it right, but 7.02.

Posted: Tue Jul 07, 2009 8:41 pm

My birthday's in two days. You all should bring me cake and presents.

Nora Thorsen

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Ryu Blazer

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Posted: Tue Jul 07, 2009 8:42 pm

Kazyan

Ryu Blazer

Kazyan

Ryu Blazer

You wouldnt happen to understand Acid-Base equilibrium?

Yep. Ask away.

How to calculate the Ph of a 0.02M hydrazine solution (H2NNH2) with hydrazine being a weak base. Its Kb= 1.3x10^-6
@Saphen- I know who to ask when I have a question on that then. blaugh

*brushes up on molarity*

Uh...-log10(1.3x10^-6) would be the Ph of 1.0 M, one mole per liter...so, 0.02 M is one mole per 50 liters. Uh.

*calculates*

I really don't think I did this right, but, that log value would get close to 7. The calculator said the value was -5.88, so get rid of the minus sign for the pH to get 5.88. 7 - 5.88 = 1.12; 1.12 / 50 =~ 0.02, 7 + 0.02 =~ 7.02. (Those steps cut the distance between 5.88 and 7 down by a factor of 50)

Like I said, I really don't think I did it right, but 7.02.

The answer is 10.21 for the ph. Again my main issue it im not understanding how to even start the problem because of how he writes this s**t. Its ticking me off and the test is in the morning. -sigh- Thank you for the help though.

Posted: Tue Jul 07, 2009 8:44 pm

If you're really stuck, Google and Wikipedia are better than a random dude on the internet. sweatdrop

Kazyan

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Ryu Blazer

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Posted: Tue Jul 07, 2009 8:46 pm

Im lazy. sweatdrop

Posted: Tue Jul 07, 2009 8:49 pm

Okay then...try this.

Kazyan

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Nightsnow

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Posted: Tue Jul 07, 2009 8:52 pm

...I'm twenty.
Nonetheless - HOSHI - Omi's younger than me by a year?!

o3o

Also - THE CAKE IS A LIE! scream

Have some cupcakes instead. >3>

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