NiCl2·2H2O + 2 PPh3 + 2 HC(OC2H5)3 → [NiCl2(PPh3)2] + 2 HC(O)OC2H5 + 4 C2H5OH and NiCl2·2H2O + dppe + 2 HC(OC2H5)3 → [NiCl2(dppe)] + 2 HC(O)OC2H5 + 4 C2H5OH where Ph = C6H5 and dppe = Ph2PCH2CH2PPh2. MW of [NiCl2(PPh3)2]= 654.2 g/mol MW of NiCl2·2H2O= 165.6 g/mol MW of PPh3= 262.3 g/mol Mw of Triethyl orthoformate HC(OC2H5)3 = 148.2 g/mol density of triethyl orthoformate HC(OC2H5)3 = 0.891 g/ mL If 0.186 g of NiCl2:2H20 reacts with 0.577 g of PPhz...
For the equilibrium 2PH3(g) ⇌ P2(g) +3H2(g), the equilibrium partial pressures are PPH3=0.049 atm, PP2=0.498 atm, and PH2=0.776 atm at 738K. Calculate Kp.
Which reagents could be combined to make the following molecule? so pph3 o e @ $ $ - 9
(8) Let E C R" and G C R" be open. Suppose that f E G and g G R', so that h = go f : E → R. Prove that if f is differentiable at a point x E E, and if g is differentiable at f (x) E G, then the partial derivatives Dihj(x) exist, for all and j - ...., and 7m に! (The subscripts hi. g. fk denote the coordinates of the functions h, g....
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E, F, and G in a sample space S. Assume that Pr[E]=0.5, Pr[F]=0.45, Pr[G]=0.55, Pr[E∩F]=0.3, Pr[E∩G]=0.3,and Pr[F∩G]=0.25. Find the following probabilities Pr[E∪F] = Pr[F′∩G]= Pr[E′∩G′]=
Consider the overall balanced chemical equation: Ni(NO3)2·6H2O + 2 NaY + 2 PPh3 + 6 HC(OC2H5)3 → [NiY2(PPh3)2] + 2 NaNO3 + 12 C2H5OH + 6 HC(O)OC2H5 where Ph = C6H5 and Y = SCN or NCS (ambidentate ion). MW of Ni(NO3)2·6H2O = 290.8 g/mol MW of NaSCN= 81.07 g/mol MW of PPh3= 262.3 g/mol MW of [NiY2(PPh3)2] (Y = SCN or NCS) = 699.5 g/mol If 0.252 g of Ni(NO3)2 6H20 reacts with 1.77 mmol of NaSCN and 1.65 mmol...
Let f, g E H(C) be such that |f(z)| < \g(z)| for any z e C. Show that there exists a E D(0,1) such that f(z) = ag(z) for any z E C. (Hint: consider f/g and be careful with the zeros of g.)
Given f, g E Da,b] , prove that min(f, g) E Da,시
(8) Let E c R" and G C Rm be open. Suppose that f E -G and g:GR', so that h -gof:E R'. Prove that if f is differentiable at a point x E E and if g is differentiable at f(x) є G, then the partial derivatives Dh,(x) exist, for all , SO , . . . , n, and and J-: に1 The subscripts hi, 9i, k denote the coordinates of the functions h, g, f relative to...