Question

Having difficulty ; one question, different parts work off from one another. Thank you in advance !

Part A Using an experimentally determined value of 1.4x10-10 for the Kp calculate how many milligrams of Ag2 Cro. will dissolve in 10.0 mL of H,O ΤΑ ΑΣφ mg Submit Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining Part B The accepted value of K, for Ag, Crois 1.1x10 12 Calculate the percentage error in the experimentally dotermined value given above for Ko IVO AED Part C Using an experimentally determined value (14x1016) 1 Kg determine the value for the reaction quotion Gif Axe Cwil precipitato when 7.00 ml. of 0.0040 M AgNO, are added to 4.00 ml. oto 0024 M K Cro IVO AEG + ?

Answer 1

Part A AgaCqon 2 Ag* + ceou 2s s where sis solubility in mol/L ..ksp= [A8+] ² [Cou? 1.4x10-10 (25) ² (3) 453 l'yx10-10 0.35 x 10-10 = 35x1072 To convert it into a = s = 3.27 x 10-4 molle gram/ 2 multiply by moler moss of Agron i solubility 3.27X10-9 sol *331.73 mol (Moler mass 108.5X10-3 of ASGOW 108.5x1or 3 x 103 mg mg IL Amount AgaCcon dissolved in ! (Molen L L = 108.5 of 108 S or 10oome sing 108.5 mg xlo me lome = 1000 me 1.085 Part 8 ng Experimental value of ksp=1,481010 Accepted value of ksp = 1.1810-12 1.4 x 10-10 11x10-12 = 1.4x10100011 x 10-10 1.389 x 1010 4 Error

Error x 100 i Percent error = -10 X100 - Accepted value : 1.389x10 1.1 X 10-12 11263x104 12630 % 1-26 X104.16 = 1,3X104 Percentage error = = 1-3 X 10' %

part c on mining Total volume = 4+ 7 = 11 ml (For AgNO3 using malerity equation- Mov,= Mavz 0.0040 M*7 noce = MXll me -3 M= 2.54 x 10 [Ag+] = [Ag Nog] =254610-3M For Xeon Mavz 0.0024 M x' ... Xume =mxiime M=8173 X 15"M [Raccou] ={cco, -] = 8,738104 AgaChou zagt trou ² 2- [A8+)² [Croy, 2- a'i Q = (Reaction quotient) (2.54X1035(8.73x10-4) = 56.3 X 10-10 = SIG3 X10-9 Since > Ksp (5.63X104) s' (1.4x10-10) formed ppt, will be of Aggeroun