<p>
The orders of each product added together equals reaction order.</p>
<p>So rate=k[A]^2**^1[C]^0
would be reaction order three.</p>
<p>wat’s bond order?</p>
<p>Question Question…</p>
<p>My AP Chem teacher told our class something really weird today, and I want to run it by here to see if it’s true.</p>
<p>Apparently if you’re on a problem that has several steps of questions and you don’t know how to do one of the parts, you can make up an answer and write “I made up this answer so that I could continue” next to it. Then they’ll keep grading the rest of it as if that were correct, an they’ll go by your calculations instead of your answers.</p>
<p>Is this a fact? Can I do this?</p>
<p>but on the multiple choice, it only gives you the concentration and the time and it asks what order it is for that reactant</p>
<p>^yes you can</p>
<p>
</p>
<p>The # of bonds between two particular atoms.</p>
<p>CO2 has 2 double bonds yes? Ok CO2 also has 2 bonding sites. Bond order is the number of bonds divided by the number of bonding sites. So CO2 has 4 bonds/2 bonding sites, bond order is 2. SO3 has 3 bonding sites but it has 4 bonds because of one “resonating” double bond with O. So 4/3 means a 4/3 bond order.</p>
<p>Bond order has replaced the old theory of resonance structures. Instead of a double bond switching, a 4/3 bond order means that EACH bond is like 1.333 length</p>
<p>LoonLake, my ap chem teacher said that too</p>
<p>what kind of question will require the use of the hendersen hasselhoff equation? /how will the question be stated?</p>
<p>coke (crude carbon) is added to strongly heated Iron ore containing Fe2O3.</p>
<p>1) Define “crude carbon” is it just C?
2) what type of process is this?</p>
<p>good god… all these reactions are unknown to me. NONE OF THESE ARE REDOX // DOUBLE REPLACEMENT // COMBUSTION! any tips on reactions?</p>
<p>Does anyone know how to do the following question?</p>
<p>At 25 C a saturated solution of a metal hydroxide, M(OH)2, has a pH of 9.0. What is the Ksp value of the solid?</p>
<p>The answer is 5.0*10^-16 </p>
<p>I think you find the pOH and then find the [OH]- , then write a ksp equation to see the relative concentration of each. In this case the ksp = (x/2) (x)^2, where x = concentration of OH- </p>
<hr>
<p>I got down to ksp = ((10^-5)/2)(10^-5)^2 = 2.5 x 10 ^-21. That’s the wrong answer. what am i doing wrong???</p>
<p>Can someone post a list of constants we need to know? Important, considering we get no equations sheet on the MC, and the equations sheet doesn’t even contain them.</p>
<p>Faradays: 96500 Columbs
Gas: 0.08206 L<em>atm/mol</em>K
Something with Kinetics: 8.314 J/K*mol
6.022 * 10^23 lolol</p>
<p>Some copying and pasting:
Speed of light, c = 3.0 * 108 ms-1
Planck’s constant, h = 6.63 * 10-34 Js
Boltzmann’s constant, k = 1.38 * 10-23JK-1
Avogadro’s Number = 6.022 * 1023 molecules / mol
Electron charge, e = -1.602 * 10-19 coulomb
1 electron volt per atom = 96.5 kJ / mol</p>
<p>You’re awesome Shizzle. So what is everyone focusing on for studying their FRQs? I just went through PR MC and starting on the 2008 Audit.</p>
<p>do we really need to know boltzmans? ive never heard of that in my life lol. I’ve never seen electron volt per atom either.</p>
<p>Quick run down on how electroplating works, and how you would explcitiyl solve for it?</p>
<p>
</p>
<p>…the Kinetic “something” is a version of the Gas Constant right above it.</p>
<p>for the predicting rxns part, we don’t need to write the phases for each thing right?</p>
<p>
</p>
<p>To my knowledge, no, but read the directions–never listen to ANYTHING blindly.</p>
<p>hey can someone really quickly help me with this problem:
Exactly 100ml of 0.10 M nitrous acid are titrated with a 0.10 M NaOH solution. Calculate the pH for the point at which 80mL of the base has been added. I forgot how to do these titration problems.</p>