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2015-05-30ٶԱX߼ǴˣX߻й©

ģеСź͸ǴΪtamper-proofȫijXֹͣ䡣

2015-05-30иɷX߼丽
ԣĸ׺ӤǾ԰ȫġ
2015-05-30ҿX߼Ƿᱩ¶XУ

ᣬǰ˵X߱ںķڡļ򵥹涨XDzᴥġ

2015-05-30缫: pH缫ж೤

pH缫ƷʡƷ¶ȼʹõƵʡйء ʹáȷ£pH缫Ϊ12ꡣ

2015-05-30: αpH缫

缫ʹһʱбʱ͡Ӧٶȱɳз
1)Ʒкеʣθø/ϴҺME51340068ϴ缫Ĥ
2)ƷΪ/лҺ壬ñͪҴϴ
3)ֵ缫Һ粿ڣϴҺME51340070ϴҺ粿
4)缫Ĥ
缫Һ(ME51340073)30룬3mol/L KClҺ5Сʱ

2015-05-30缫: 缫У׼һΣ

缫У׼Ƶȡڵ缫ʹáƷԼȵȾ
ÿУ׼һΣҪÿһУ׼
缫Լʱ䲻ʹãʹǰУ׼

2015-05-30У׼: Ϊʲô缫pH7.00ĻҺУʾΪ7.02
ʱҺ¶20CҡڻҺpHֵ¶ȱ仯С仯7.00ֻǻҺ25CµֵҺ20CʱֵӦΪ7.02÷-pHԶ¶ȶԻҺӰԱ֤ȡ
2015-05-30: ͬһƷͬʱ̨pHϲһ

̨pHƵУһ粻ͬʱУɲֵв졣ҪͬһҺͬһʱpHƽУȻͬʱⶨ

2015-05-30: ͬһƷβpHֵһ
¶ȱ仯Ʒ˻ѧӦpHֵı仯ԣӦ¶һ£ұ⻯ѧӦ
2015-05-30νԶسӣ

ԶسһˮϵĶ̬豸100%ÿһƷѲƷΪ顣

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