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【简答题】
生活中一般用pH值表示溶液的酸碱度,pH值具体是指溶液中氢离子浓度的常用对数值 的相反数,例如:溶液中氢离子浓度为10 -7 个单位,则此溶液的pH值为-lgl0 -7 =7.若有甲、饮料,甲饮料的pH值为3,乙饮料的pH值为6,则甲饮料的氢离子浓度是乙饮料的 ________倍.
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