<p>I have a rather old, normal Ti89. Not the titanium version. There's apparently a way to determine what order a set of values given is by plugging in the values given. Anyone know what I'm talking about? A step by step explanation would really help, thanks!</p>
<p>Its not really anything ti89 specific. Just manipulate your rate laws.</p>
<p>Rate = k[A]^x**^y
Rate2=k[A2]^x[B2]^y</p>
<p>So cancel out your k’s, and you can say Rate2/Rate1 = [A2]^x[B2]^y/[A1]^x[B1]^y . So if it has a chart and you can see that ** is the same for two experiments but [A] changed to [A2] you can say Rate2/Rate1=([A2]/[A])^x, because **=[B2] and [A2]^x/[A]^x=([A2]/[A])^x, by math properties. </p>
<p>So in your calculator you can either use the ‘solve’ feature or you can use logs.</p>
<p>solve(Rate2/Rate1=([A2]/[A])^x,x)</p>
<p>or</p>
<p>ln(Rate2/rate1)/ln([A2]/[A]) </p>
<p>-This comes from log properties. Log base A2/A of Rate2/rate1 equals x. Since calculator do base 10 automatically, you have to use another property of logs to type it in. Thus you do natural log of whatever number divided by natural log of the base.</p>
<p>But for the Ap exam they probably will be pretty simple and you can just think about it and solve it.</p>