Question

A 1.00 liter solution contains 0.36 M ammonia and 0.47 M ammonium bromide. If 0.240 moles of sodium hydroxide are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of sodium hydroxide.) A. The number of moles of NH3 will decrease. True False B. The number of moles of NH will remain the same. C. The equilibrium concentration of H30* will decrease. D. The pH will remain the same. E. The ratio of [NHz]/[NH4+] will decrease. Submit Answer Retry Entire Group 9 more group attempts remaining

Answer 1

Jhe be considered ilibrim 1eacion can as 3 O.4 M 0 36 M According NaoH i added to Question NaoH is added, ihen Consumed to ive water (A) False when wi be more Naf NaoH-H30>2H20 So to maintain will decreascd Hence the equilibim the reacion wili proceed borwardaccor à ing to Le chateliers Princiele wil r mand number NH3 Jhus m ore increase. moles af NH2 ui NH H20 NH33 +oH Ca NaOH) H- H ENH decreases. increases 'NH is number a moles af NH wi (B) Fal se Consumed p by NaoH Hence decrease Jhe equilibnm Comcentration af OH Henc number a moles a True H30t H30t will CAS, H30 is decrease Con sumed 2 H20 H3 0t i decrcaje fer Ritex uP by oH a NaoH csScanned with water Ct20)) torodce anner n

(D) fal se know we PH=-l0g CH30t, H3ot decrease So PH will Answer A S in crease. Cnot Same] Cmverted to NH3 αcCστaίο (F) (NH fal se adding oH( rm NaoH) Heactim to abdve and NH3) So NHt decrcases in ereases. Jhus NH 3 wiu increase CNH Hen ce rato Amswar not decrease Scanned with CamScanner