2. Find the difference in pHs of a swimming pool with hydronium ion concentration of 4.4 x 10 mol/L and a swimming pool with hydronium ion concentration of 5.7 x 10* mol/L.vv VV 4.4. 10 mol / PH= 109 (H" ) PH =109 [ 4.4. 10 8 ] - - 10 9 14.4) - 8log (10 ) ] 5.7- 10-8 move L-(log (4 4)- 8 log()] PH = - log [ s-7. 10-8] = 109 ( 4.4 ) + 8 log ( 10) Diffin PH = - 0. 643 4 4:8 - 109 5 5.7. 10-8)- 1-109 [ 4.4- 10-#]) = 7. 3 565 47 PH = 8- 10 g/ 4.4) 109 [ 57. 10 8 ] + 10 g [ 4.4- 10- 3] 109 4-4-10-8 5.7. 10-8 =-0. 11 24 = 0.1124 How many times as intense as a standard earthquake is an earthquake measuring 6.1 on the Richter scale? m = 10 g 10 Standard = M= 3.0 MA = 109 10 IA 3= 10910 IA If = 10's