The pH of a solution is a measure of its concentration of hydrogen ions. This concentration, written [H+] and measured in moles per liter, is given by the formula pH=log1[H+]. What is the concentration of hydrogen ions in a liter of vinegar that has a pH level of 2.5?

A. 102.5
B. 10–2.5
C. log(2.5)
D. log(–2.5)

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above

Need plz been trying to do it for a long time and still haven’t succeeded