1. First, the ratio of potassium hydroxide to water is calculated.

　　2. 然后用天平稱出20克氫氧化鉀和80克水。

　　2. Then 20 grams of potassium hydroxide and 80 grams of water are weighed with the balance.

　　3.慢慢加入氫氧化鉀到水中，用玻璃棒慢慢攪拌直到變光滑。

　　3. Slowly add potassium hydroxide into the water and stir slowly with glass rod until smooth.

　　一、液體試劑制備:

　　1. Preparation of liquid reagents:

　　根據(jù)稀釋前后溶質(zhì)質(zhì)量相等的原則。>>重量20克固體氫氧化鉀到100毫升在一個(gè)容量瓶，如果需要準(zhǔn)確

　　According to the principle of equal solute quality before and after dilution. Weight 20 g solid potassium hydroxide to 100 ml in a volumetric bottle, if required accurately

　　氫氧化鉀溶液的堿度是否具有強(qiáng)堿性?為什么?擅長:理工科C/ c++化學(xué)物理與LS一致。氫氧根溶液的堿度由水中電離產(chǎn)生的氫氧根濃度決定。高濃度的氫氧化鈉比低濃度的氫氧化鈉更強(qiáng)。另一個(gè)1 l錯(cuò)誤。氫氧根本身是堿性的(無論濃度如何)。堿度由水中游離生成的OH濃度決定。

　　Is the alkalinity of potassium hydroxide solution strongly alkaline? Why? Good at: Science and engineering C/c++ chemical physics is consistent with LS. The alkalinity of hydroxide solution is determined by the concentration of hydroxide produced by ionization in water. High concentration of sodium hydroxide is stronger than low concentration of sodium hydroxide. Another 1L error. Hydrogen and oxygen are essentially alkaline (regardless of concentration). Alkalinity is determined by the concentration of OH produced in water.

　　沒有特定的專注力，你無法分辨誰強(qiáng)誰弱。強(qiáng)堿氫氧化鉀,主要看黃金金屬離子強(qiáng)度的性質(zhì),在元素周期表中顯示比金屬性的鈉,鉀如此之強(qiáng)堿性氫氧化鉀堿性強(qiáng),因?yàn)辄S金屬性比鈉鉀,因此其相應(yīng)的氧化價(jià)水合物,是比氫氧化鈉和氫氧化鉀堿性。在摩爾濃度相同的條件下，堿性比氫氧化鈉強(qiáng)，氫氧化鉀溶液中由于鉀鈉金屬離子的遷移率比不一樣。溶液的堿度取決于OH的濃度。氫氧化鉀。

　　Without specific focus, you can't tell who is strong from who is weak. Strong alkaline potassium hydroxide, mainly depending on the strength of gold metal ions, shows in the periodic table that it is more alkaline than metallic sodium. Potassium is so strong that alkaline potassium hydroxide is more alkaline, because gold attribute is more alkaline than sodium potassium, so its corresponding oxide hydrate is more alkaline than sodium hydroxide and potassium hydroxide. Under the same molar concentration, alkalinity is stronger than sodium hydroxide, and the mobility ratio of potassium and sodium metal ions in potassium hydroxide solution is different. The alkalinity of the solution depends on the concentration of OH. Potassium hydroxide.