
Acid and Base Chart — Table of Acids & Bases - MilliporeSigma
Use this acids and bases chart to find the relative strength of the most common acids and bases. This acid-base chart includes the K a value for reference along with the chemical's formula and the acid’s conjugate base. The acid and base chart is a reference table designed to make determining the strength of acids and bases simpler.
氨气 - 百度百科
氨气(英文名Ammonia),是一种无机化合物,化学式为NH3,分子量为17.031。 标准状况下密度为0.771 g/L,相对密度0.5971(空气=1.00)。 是一种无色、有强烈的刺激气味的气体。
氨 - 维基百科,自由的百科全书
氨水 (NH 3 (aq),也常寫成 NH 4 OH)又稱為 阿摩尼亞水,指氨的 水溶液,有強烈刺鼻氣味,具弱 鹼性。 氨水中,氨氣分子發生微弱 水解 生成 氫氧根 離子及 銨根 離子。 「氫氧化銨」事實上並不存在,只是對氨水溶液中的 離子 的描述,並無法從溶液中分離出來。 氨的在水中的 電離 可以表示為: 反應平衡常數 。 1M氨水的 pH值 為11.63,大約有0.42%的NH 3 變為NH 4+。 氨水是實驗室中氨的常用來源。 它可與含銅 (II)離子的溶液作用生成深藍色的 配合物,也可用於配 …
NH3 + K = KNH2 + H2 - Chemical Equation Balancer
NH3 + K = KNH2 + H2 is a Single Displacement (Substitution) reaction where two moles of Ammonia [NH 3] and two moles of Potassium [K] react to form two moles of Potassium Amide [KNH 2] and one mole of Dihydrogen [H 2]
Ammonia - Thermophysical Properties - The Engineering ToolBox
Ammonia is a colourless gas with a characteristic pungent smell and hazardous in its concentrated form. Values at 25 o C (77 o F, 298 K) and 1 atm, if not other temperature and pressure given. See also the following documents for changes in ammonia properties with changes in pressure and temperature: Ammonia is a gas at standard conditions.
Ammonia - NH3 - Thermodynamic Properties - The Engineering ToolBox
Thermodynamic properties of saturated and superheated ammonia R-717 like specific volume, enthalpy and entropy. Specific volume (v), specific internal energy (u), enthalpy (h), and entropy (s) of saturated and superheated ammonia - NH3 - also known as refrigerant 717.
氨水的ka和kb表达式 - 百度知道
2023年3月10日 · 2、氨水的kb= [NH4+] [OH-] [NH3]。 kb代表其电离平衡常数,C为氨水的初始浓度。 氨水又称阿摩尼亚水,可写作NH3 (aq)是氨的水溶液,无色透明且具有刺激性气味。 氨水的ka和kb表达式1、Ka= [ (ammonium+)x (OH-)]/ (ammonium)其中,Ka为电离常数,ammonium为氨离子,OH-为碱度,括号中的数值是相应离子的浓度。 2、氨水的kb= [NH4+] [OH-] [NH3]。 kb代表其电离平衡常数,C为氨水的初.
氨气溶于水的平衡常数 - 百度知道
氨气(nh3)溶于水(h2o)的平衡反应是一个弱碱与水的反应,其平衡常数称为氨水的电离常数(kb)。 氨水的电离反应方程式如下: NH3(aq)+ H2O(l) ⇌ NH4+(aq)+ OH-(aq)
氨 | 7664-41-7 - ChemicalBook
氨气nh3,又称阿摩尼亚,是一种易具有刺激性气味,无色有毒,比空气轻,弱碱性,沸点较低,极易溶于水,易液化的气体。在高温时会分解成氮气和氢气,有还原作用。
Ammonia - NIST Chemistry WebBook
K from missing citation was used to derive k H and -Δ k H /R. Above T = 303. K the tabulated data could not be parameterized by equation (reference missing) very well. The partial pressure of water vapor (needed to convert some Henry's law constants) was calculated using the formula given by missing citation.