ladyskydiver 0 #1 January 24, 2007 If I have 50 ml of 5% (by weight) aqueous HCl (density 1.02 g/ml), how do I convert that to moles? I'm looking for the moles of HCl. For some reason, I'm having a memory block on converting an aqueous concentrated solution to moles. GRRR!!! HELP!!! *Should probably not be doing this right now 'cause I'm tired, but....*Life is short! Break the rules! Forgive quickly! Kiss slowly! Love truly, Laugh uncontrollably. And never regret anything that made you smile. Quote Share this post Link to post Share on other sites
sharimcm 0 #2 January 24, 2007 Whoa... That was on a level I can't comprehend... Missing you girlie!! "I had a dude tip his black cowboy hat to me after I provided him with a condom outside my hotel room at 3-something in the morning." -myself Quote Share this post Link to post Share on other sites
Icon134 0 #3 January 24, 2007 you need the molecular weight of HCl H = 1.008 g/mol Cl = 35.453 g/mol so the total molecular weight is 36.5 g/mol (approximately) now its just a matter of canceling stuff... its a 5% by weight solution HCl so you have 50 ml x 0.05 = 2.5 ml of HCl multiply by the density (2.5 ml of HCl) x 1.02 g/ml= 2.55 g of HCl divide by the molecular weight (2.55g HCl) / (36.5g/mol) = 0.0699 moles of HCl (and I'd like it if someone would check my math/approach...) its been almost a year since I've done this... Livin' on the Edge... sleeping with my rigger's wife... Quote Share this post Link to post Share on other sites
Squeak 17 #4 January 24, 2007 Check your email Cora You are not now, nor will you ever be, good enough to not die in this sport (Sparky) My Life ROCKS! How's yours doing? Quote Share this post Link to post Share on other sites
Icon134 0 #5 January 24, 2007 Quote Check your email Cora did I get something wrong? Please tell me... Livin' on the Edge... sleeping with my rigger's wife... Quote Share this post Link to post Share on other sites
Squeak 17 #6 January 24, 2007 Quote Quote Check your email Cora did I get something wrong? Please tell me... god you're insecure I just emailed her a bunch of worked examples so she can practice themYou are not now, nor will you ever be, good enough to not die in this sport (Sparky) My Life ROCKS! How's yours doing? Quote Share this post Link to post Share on other sites
lawrocket 3 #7 January 24, 2007 Conversions - intentional torts to personal property wherein the defendant's unjustified and willful use or interference deprives the plaintiff of possession of the personal property. It's the civil version of theft. My wife is hotter than your wife. Quote Share this post Link to post Share on other sites
Johnsisland 0 #8 January 24, 2007 Conversion - calculating a TWA from a dosimeter reading. For example, finding a time weighted average from a noise dosimeter reading. Particularly helpful when the exposure period is longer than a standard eight-hour shift. J Maybe somebody will post a conversion related to skydiving. I wonder how many skydiving related conversions there are?Arch? I can arch just fine with my back to the ground. Quote Share this post Link to post Share on other sites
Icon134 0 #9 January 24, 2007 Quote god you're insecure I just emailed her a bunch of worked examples so she can practice them Naw... I just haven't done this stuff in a long time and want someone to check my work... but nobody is... Oh well... Livin' on the Edge... sleeping with my rigger's wife... Quote Share this post Link to post Share on other sites
ladyskydiver 0 #10 January 24, 2007 Oh, damn...remind me not to do conversions after 10pm at night. Doh!!!! Thanks, Icon! Got your email, Squeak. Thanks! I was just having a brain block with the percent solution conversion. I had made it to the 2.5 ml of HCl and then my brain went blank. Life is short! Break the rules! Forgive quickly! Kiss slowly! Love truly, Laugh uncontrollably. And never regret anything that made you smile. Quote Share this post Link to post Share on other sites
