· AlBr_3 + K_2SO_4 -> KBr + Al_2(SO_4)_3 How I balance equations is by first of all dividing the equation into two parts - reactants and products. Reactants Al = 3 Br = 3 K = 2 S = 1 O = 4 Products Al = 2 Br = 1 K = 1 S = 3 … · 原子(离子)半径(pm)周期表 H 32 Li 123 M+ 60 Be 89 M2+ 31 共价半径 元素符号 B 82 共 82 M3+ 20 原子半径 离子半径 1Å=100pm B 82 共 82 M3+ 20 C 77 共 77 M4+ 16 N 70 共 75 M3-171 M5+ 11 O 66 共 73 M2-140 M6+ 9 F 64 共

 · Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal. Point Group: 32/m. Flat hexagonal plates, to 0.2 mm. Physical Properties: Hardness = [3.5–4] (by analogy to the alunite group). · 2. A área superficial de um lago é 2,6 x 10^6 m² e profundidade da água é cerca de 10,0 m. Qual a quantidade de calor (em kJ) que deve ser transferida … para a água do lago a fim de que a temperatura se eleve 1,0 K? Admita que a densidade da água é 1,0 g/cm3 e o calor específico 4,184 J/g K.

 · 如：明矾净水：KAl(SO4)2·12H2O；KAl(SO4)2＝K＋＋Al3＋＋2SO42－；Al3＋＋3H2OAl(OH)3(胶体)＋3H＋6. 油脂很难洗涤,但在碱性条件下可水解生成易溶于水的甘油和羧酸盐。因此,我们可利用热的纯碱溶液去除油渍。Al2 (SO4)3 + 3Ca (OH)2 2Al (OH)3 + 3Ca+2 + 3SO4-2. 1. Assuming that the concentration of calcium in the water is 80 mg/L (as Ca), how many mg/L of quick lime (CaO) would be needed to reduce the calcium concentration to 35 mg/L. Also assume that the reaction (conventional lime softening) is stoichiometric, that there is no excess CO2 present ...

 · K+(aq) + Al3+(aq) + 2SO42-(aq) + 2H2O(l)→KAl (SO4)2 * 12H2O(s) Al is limiting and 1.007 g Find the theoretical yield and percent yield I think the answer is 17 and 40, respect. I just need help figuring it outTel:+852 8191 6999. Address:CHURCHILL HOUSE 142-146 OLD STREET. Inquiry Now. Casno: . Alunite (K [Al3O3 (SO4)2].3H2O) Min.Order: 0. FOB Price: USD $ 0.0-0.0/. We are a bespoke specialist sourcing company for the fine chemical and pharmaceutical industry, offering an outsourcing service for fine chemicals, intermediates and custom synthes.

30.02.04.02 Natroalunite NaAl3(SO4)2(OH)6 R 3 m 3 2/m : 30.02.04.03 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3 m 3 2/m : 30.02.04.04 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m : 30.02.04.05 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3 m 3 2/m : 30.02.04.06 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3 m 3 2/m : 30.02.04.07 Walthierite …It is an inorganic salt, also called potassium aluminum sulfate with a formula of AlK (SO4)2 that is predominantly produced in the dodecahydrate form (AlK (SO4)2 * 12H2O). Potassium alum is formed by large, transparent crystals that are used in different products like food or drugs as a buffer, neutralizing or forming agent.

 · 如： ＋＋－明矾净水：KAl(SO4)212H2O；KAl(SO4)2＝K＋Al3＋2SO42； 某些金属表面产生少量的氧化物,现欲除去金属表面的氧化物,而又要尽可能减少金属的损耗,一般不是选择酸与 氧化物反应,而是选择一些强酸弱碱盐,利用其水解产生的 H＋与金属Molar mass of Al3 (SO4)2 is 273.0698 g/mol. Forget 2020. Get control of 2021! Track your food intake, exercise, sleep and meditation for free. Convert between Al3 …

 · 此物质为明矾,在水中电离出两种金属离子,电离方程式为：KAL(SO4)2=K 加 AL3 加 2SO4 2- 已赞过 已踩过 你对这个回答的评价是？ 评论 收起 sissi0519 · TA获得超过1098个赞 知道小有建树答主 回答量： 228 采纳率： 0% 帮助的人： 0 我也去 ... · 问题描述：（1）设计实验方案验证明矾中含有K+、Al3+、SO42-,写出实验步骤、实验现象、有关的离子方程式及结论．实验步骤实验现象结论离子方程式（2）将70g过氧化钠和氧化钠的混合物跟 ...

 · 3.2.2.5 加热上述溶液沸腾十分钟。 3.2.2.6 冷却室温,加入XO 指示剂2-3 滴,由于EDTA 溶液浓度 问题,此时溶液仍呈现紫红色。 3.2.2.7 用标准硫酸锌溶液滴定,当明矾溶液由紫红色变为黄色时 即为滴定终点。 3.2.2.8 平行滴定两次,计算自制明矾中的铝 · SO4 ?2 ? 12 H 2O 2 Al ? 3H 2 SO4 ? Al2 ? SO4 ?3 ? 6 H 2 ? Al2 ? SO4 ?3 ? K 2 SO4 ? 24 H 2O ? 2KAl ? SO4 ?2 ?12H 2O 2.2 铝离子含量测定原理 Al3+与 EDTA 配位反应, 加入过量的 EDTA,并加热煮沸反应完全；AI3+对二甲酚橙指示剂 有封闭作用, 酸度 ...

Detailed insight into the magnetic properties and mobility of the different deuteron species in jarosites (AFe3(SO4)2(OD)6, A = K, Na, D3O) is obtained … · 根据正负电子平衡,有：3[Al3+]+[K+]=2[SO42-] k+的浓度为：(0.2×2-0.05×3）÷1=0.25mol/L 为什么3[Al3+]+[K+]=2[SO42-]？ ... 2.在Al2(SO4)3、K2SO4和明矾的混合液中,如果c... 1 在Al2（SO4)3,K2SO4和明矾的混合液中,如果c(S...

 · （2） 3(ba2+)+2(al3+)+6(oh-)+3(so4 2-)——2al(oh)3↓+3baso4 ↓ （3） 生成沉淀物质的量时反应离子方程式同（2） 对于（4）我觉得要分类讨论~ 情况一： 往氢氧化钡溶液中慢慢加入明矾直过量 也是说参与反应的ba2+等量~我们不妨将（1）两边系数乘 ... · NH4Al(SO4)2溶液是一个含有两个质子酸（Al3+、NH4+）,及一个质子碱（SO42-）的,有多个酸碱的复杂体系。…