<p>Haha, I am embarassed to have to ask this, but I'm totally blanking out on the topic of scientific notation as I prepare to do my last rounds of studying for my advanced chemistry midterm, which is tomorrow.</p>
<p>I know that something like .00035 translates into 3.5x10^-4, and something like 2,400,000 goes to 2.4x10^6, but what would something like .01222 be? 1.222x10^-2?</p>
<p>Thank you for any help!</p>
<p>Yes it would be exactly what you said.</p>
<p>Remember… greater than 1, less than 10.</p>
<p>yes, i believe so, although usually (someone can correct me on this?) it is only with 2 significant figures, so 2 numbers in front of the x 10^whatever.</p>
<p>Sigfigs changes depending on the calculation done.</p>
<p>Thank you! Would anyone be able to help me out with these conversions:</p>
<p>7.00 x 10^5 nm to cm. </p>
<p>I know 100 cm= 1x10^9 nm, but I’m not sure how to set it up to do the conversions.</p>
<p>Haha, sorry for such basic questions. We learned all of this in September and I’m drawing a blank. If someone could explain to me how to set the conversion up to get the answer, if would be greatly appreciated!</p>
<p>Significant figures are different from scientific notation. For example in signficant figures there is rounding (up and down) and some law about 0s.</p>
<p>No 10^9 nm = 1m. </p>
<p>1 cm = 10^7nm.</p>
<p>So it’s just dimensional analysis.</p>
<p>(7.00 x 10^5 nm)(1 cm/ 10^7 nm) = 7.00 x 10^-2 cm.</p>