How many total cations (A and B) and anions (X) are there in the unit cell below?
What is the formula of the compound thal crystallizes with zinc atoms occupying 1/2 of the tetrahedral holes in a cubic closest-packed arrangement of sulfur atoms?
Calculate the osmotic pressure of each of the following aqueous solutions at 20.00 °C:
a. 2,43 M methanol (CH3OH) b. 7.07 mM MgCl2
c. 365 m L of glycerol (C3I-1,103) in 250.0 rnL of aqueous solution (density of glycernl= 1.265 gimL)
at tn
I— 1.4 —,i.441,1-i..i..1.1awlus..¦
. • ¦¦ ,00......1.1,“.0.1•¦•¦,40.11+1,1*ItHt,1"14 Number .[
d. 24.5 g at CaCA2 in 35i
rr L of sal LifrOn
nl.bor
atm
atni
Pr
Lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration of EDTA in the blood of a patient is 2.70 x 10-" M and the formation constant for the complex, [Pb(EDTA)12-, is 2.00 x1018, what is the concentration ratio of the free (and potentially toxic) Pb2*(aq) in the blood to the much less toxic Pb2+-- EDTA complex?