Question

072 3. A child's blood has lead levels of 140 micrograms/ 100.0 mL. 10.0 m is lead levels of 140 micrograms/ 100.0 mL. 10.0 mL of 2.0 M Na Ca(EDTA) is administered. What is the lead level after administration in moles/L? is the lead level after administration in moles/L? The total blood volume is 2.5 L. There is no safe blood level for lead. (12 pts.) [Ca(EDTA)]?"(aq) + Pb2+ (aq) [Pb(EDTA)? (aq) + Ca2+ (aq) K=2.5 x 10 Munan

Answer 1

med feeded DOS DRDO M ITAGE 21 ATURE Pb = 207.2 u. 7 2072 g/mol. 100mL = 2total of 252 140x25 ug in 2.54 = 3500 ug & 2.5L = (3.500 ) moles/ c = 6-757 g/mole x 10 ( 2072 12:52 = 6.757 MM. -0.000006957 M 10.om LoL 204 Nar Ca(EDIA), 2.5L of blood 1 - 00 0 000 1.850 1 853 1.834 1.870 1894 1854 2.0x tomt = ax 2500mt x=8 -0.008 Moles/L = 8000 MAM -0.008 M Ca CEDTA) ?(99)+ PPC79) = Pb (EDIA)? C97)+ ca 169) 0.008 (1-2) Koo (12) x 6.7 52006 LX 64574156 XX 6.757 2162

No.100 is ka [ca?t? Ce [ca?t] [ pb (Eoin a 2.50107 {8624) [ca CE01A) ² 67578703 (2²) x67 Sant = 2.58 107 6252848*(12) X 0.008 (12) d2 = 3.58107 (1-2) (12) 0003 6.2524106 d2 = 9,96x01010 ² = (22-24 + 1)2-96.16 22 29 08 02 = (-22+1 ) 2-90 100 0 2470 108 x 2² = (-24 11 ) x 24xloto Q3 24+1) = 0

MAGISTRAL 1504 SAZ AUT lead Concentration is c o m