Super important giant question about ICE

<ol>
<li>Do you really have to draw that giant table? I mean i can work it out in my head, but I find drawing the table is more challenging</li>
<li>Do they deduct marks if you perform the quadratic? I keep forgeting to say whether x is roughly equal to 0 or the molarity.</li>
</ol>

<p>Can't you just write something like x^2/1.2 - x = Keq and then jsut solve for x?</p>

<p>Also, how do they stress significant digits??</p>

<ol>
<li>Then do it in your head and don’t bother with the table.</li>
<li>x~=0.</li>
</ol>

<p>what is significant digits for exponents,
for example if you are given 0.0015, and you raise e to the power of that, how many sig.digs. are there now?</p>

<p>

</p>

<p>But would they deduct marks??</p>

<p>You mean on the FRQ? For the approximation, they wouldn’t deduct points so long as you showed that the end result was small enough compared to initial to warrant the approximation–around 5%. What I would do is do the math in your head, write down the results, and then try to set up the table.</p>

<p>If we’re given an ice prob, would it be on calc active section?</p>

<p>^I think we’ve had ICE on some pf the old APs I did. Maybe.</p>

<p>Stop making a new thread for every question you have.</p>