Question

When Lake Travis is full, it holds about 369 billion gallons. If we pretend that Lake Travis has a neutral pH (pH = 7), approximately how many moles of Hare present in the lake? 1 gal = 3.785 L 1.40 x 105 moles 3.69 x 104 moles 3.69 x 10 moles 1.39 x 108 moles 138 moles 4.65 x 108 moles 1.00 x 10-7 moles

Answer 1

pH log H H10 =10-7 mole L Volume of the Lake T ravis = 369 billion gallons -3.69x10 gallons 3.69x 10gallons3.785L 1.40 x1012 L gallons Number of moles of H -1.40x 1012 L x 10-7 e L 1.40x10 mole