Cclligative Pvopenti'cs
Depend on the humbev of solute pawhtles in soluticn, uct stnicty ou the i dentity of the solufe
New coUCevfrah&n uuits
2 Mcla1ity, M = moles of solufe/bilogvaWs of soluhon (r/kg) 3. Mass fvocfion, Pavt by Wass mass solntz/ mass solute .%o by nahss : mass fvech'on 1Oo temperafure indepeudeut O7. Noyoary SSvm = qddc wo'n!9 Aad faod.
(n;o(ute + nsolvenf)
. %o by veluwe - vclume fvactin .100
EXl What i; fhe Wo7avity of a 37% by mhss HCt ayucous sulufiou? P -1.2O g/mL
37g HC1 loo: soluhion
1.20, solut'ou 1mL 50lUfi'oN
1000 mL I mel X 71 36.4alg HC1
12.2 mc1 HC1 IL
l2.2 M HC1
EX| Whaf is fhe mcle fumcHicn of 37% HCl by mass? : Need ncles of HCl and wafev -> +otal moles
l mcl
1mo1
e3g HzO X c 3.497 T8.02s HzO wel HzO
1.OtS mcl HC1
[0.225
1.OlS mcl HC1 + 3.497 Wc1 HzO
XH,o= 1 -0.225 =[0.775] Ex 37%o HC1 by masS tanyas 6n/pu : K'ropom - : assume (00g solut`ch 37g HC1=1.Ol5 mol HCl 63g HzO=O.O63 kg H,O
j.O1S mol HC1 s[1b.1m HCl] O.Oe3kcg