Question

please just mutiple choice of question 6 and 7

6) The theoretical Nernstian slope for Sr2-is a) 59.1 mV/ decade b) -29.6 mV/decade ) 29.6 mV/decade d 18.7 mV/decade fluoride ion-selective electrode is used in two solutions. Both solutions have (FI of 1.00 x 103 M, but one has a pH 2.00 aad the other a p a) the potential would be the same in both solutions b) the potential would be lower in the pH 5.00 solution e) the potential would be higher in the plH 5.00 solution 5,00. You would expect that

Answer 1

Question 6 :nernstial slope is 29.6 for davalent strontium hence option C is correct

Question 7 :for pH below 5 potential would be same both solution hence at pH =2 or pH=5 potential will be Same as HF act eak acid below pH= 5