Recent content by Draco

There's nothing for a bicarbonate ion :( EDIT: um nvm, don't worry about it. Thanks again. I just happened to find it in my textbook:P Thanks for the help :P

Thanks for the help :P, but i just need one more thing. You wouldn't happen to know where I could find the acid dissociation constant, and base dissociation constant of a bicarbonate ion would you? (K_a, and K_b) Sorry, but these assignment didn't have any instructions and it just told us to...

Can someone help me factor x^3 + 8? I totally forgot how to do that :S

Thanks but i don't see anything about heat of solution there :S

oo ok. Thanks for the info, but I really only need the Heat of Solution and solubilities for Calcium Chloride and Sodium Bicarbonate now.

What exactly is that? Everywhere I go people mention that. Don't I have to have an account of something to receive access?

You guys wouldn't happen to know where I can find a database or something that tells me the "Heat of Solution" for different compounds. In my assignment it tells me to "look up" the heat of solution for Calcium Chloride and Sodium Bicarbonate... Like I can't even calculate it since they don't...

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no, first of all your v is the speed of sound. Your v_s is the speed 10.4719. You only use the period to find the velocity. so its f+ = 600/(1- (10.4719/343) ( you got the signs messed up in your equation, - for approaching,+ for receding) try that see if it works

what about x? y = a cos ( (2pi/.80)(0) + y = a cos ( (2pi/.80)(0.30) -0.7854) is that correct?

wouldnt x =80

um can anyone fill me in on these two questions?

oh yeah, i got that question just after I posted. Thanks for explaining a different method though. I used a different way to find the length of the tube.

Excuse me but why would A= 80?

Homework Statement A 75 g bungee cord has an equilibrium length of 1.20 m. The cord is stretched to a length of 1.80 m, then vibrated at 20 Hz. This produces a standing wave with two antinodes. Homework Equations Linear Density = m/LThe Attempt at a Solution So far I've only found the linear...