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CHEMISTRY HW 6 - 1 Consider the following reaction at...

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1. Consider the following reaction at equilibrium: Pb 2+ (aq) + 2Br 1- (aq) PbBr 2 (s) In which direction (l = left or toward reactants, r = right or toward products, n = no change)will the equilibrium shift if the following occurs: (write the answer as, for example, l,r,n,l) 1. adding PbBr 2 (s) 2. adding 100 mL of 0.25 M Pb(NO 3 ) 2 3. adding 100 mL of 0.25 M Na(NO 3 ) 2 4. removing all of the PbBr 2 (s) 5. adding 100 mL to the mixture 2. Consider the following reaction at equilibrium: NO (g) + ClNO 2 (g) ClNO (g) + NO 2 (g) Will the concentration of NO 2 increase (i), decrease (d) or remain the same (s) if the equilibrium is disturbed by: Note: Indicate your answer by, for example, i,d,s,i. a. adding ClNO (g) b. adding NO (g) c. adding ClNO 2 d. removing NO e. adding 4 moles of Ne Carbon disulfide, a solvent used in the manufacturing of rayon, is produced by reacting methane and hydrogen sulfide as follows: CH 4 (g) + 2H 2 S (g) CS 2 (g) + 4H 2 (g) at a T=1000K If, at equilibrium, the pressures of the species involved are: H 2 = 0.15 atm; CS 2 is 0.42 atm, the methane is 370.0 torr and the H 2
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