[" (1) "10" ) "(2-26)" (d) "Co(Z=27)],[" 54.How many litres of water must be added "],[" to "1" of an aqueous solution of HCl with a "],[" pH of "1" to create an aqueous solution with "],[" pH of "2?],[[" (a) "0.1L," (b) "0.9L," (c) "2.0L," (d) "9.0L]]