In Chemistry, the pH of a solution is defined by pH = -log10[H +), where H+ is the hydrogen ion concentration of the solution in moles per liter. At a river, the pH was measured as 2.36 x 10^-7 mol/L. A year later at the same river the pH was measured as 1.41 x 10^-8mol/L. How much did the pH
increased in one year?

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Can someone me do math because i am having a breakdown rn because i don’t get it

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.