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dongpan1110金蟲 (正式寫手)
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[交流]
求翻譯 Egg albumen and yolk were separated carefully with a net,
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Egg albumen and yolk were separated carefully with a net, and their pH values were instantly reduced with 1 N acetic acid to their respective normals 重點(diǎn)是加粗的部分。謝謝 |

金蟲 (正式寫手)


金蟲 (正式寫手)

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當(dāng)量濃度 溶液的濃度用1升溶液中所含溶質(zhì)的克當(dāng)量數(shù)(gram-equivalent number)來表示的叫當(dāng)量濃度,用N表示。 當(dāng)量濃度=溶質(zhì)的克當(dāng)量數(shù)/溶液體積(升) 克當(dāng)量數(shù)=質(zhì)量/克當(dāng)量 克當(dāng)量(gram-equivalent weight)實(shí)際上是指物質(zhì)的基本摩爾單元的摩爾質(zhì)量。 當(dāng)量=原子量/化合價(jià), 若原子量采用克原子量時(shí),則當(dāng)量就成為克當(dāng)量。 克原子量就是現(xiàn)在常說的原子量。 舉例: 酸的當(dāng)量=酸的分子量/酸分子中被金屬置換的氫原子數(shù)。即1N=1 mol/L H+ :對(duì)于一元酸來說,1N=1 mol/L,如1N HCl=1mol/L HCl;對(duì)于n元酸來說,1N=1/n mol/L,如1N H2SO4=1/2 mol/L H2SO4;1N H3PO4=1/3 mol/L H3PO4。 |

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