(3)2C(r^(3+))+3(H_2)(O_2)+10O(H^-)=2CrO_4^(2-)+8(H_2)O除去未反应完全的H2O2 88.8%【分析】实验室制取CrCl3的反为C(r_2)(O_3)+3CC(l_4)(array)l(((高温)))()(array)3CrC(l_3)+3COC(l_2),CrCl3易潮解高温下易被氧气氧化,所以要防止装置在高温条件下存在空气,反应前和...
三氯化铬(CrCl)是常用的媒染剂和催化剂,易潮解,易升华,高温下易被氧气氧化。实验室利用反应Cr_2O_3(s)+3CCl_4(g)=2CrCl_3(s)+3COCl_2(g) ) 制取 CrCh. 其实验装置如下图所示。Cr:O,小瓷舟无水CaCl-D管式炉E1-CCL.C热水NaOH溶液A BC已知:①COCl2(俗称光气)有毒,遇水发生水解:COCl,+H ...
CRCH是2A，CRCL是BB
b = 3 (CrOH) c = 1 (Fe(OH)3) d = 3 (CrCl) Step 4: Substitute Coefficients and Verify Result Count the number of atoms of each element on each side of the equation and verify that all elements and electrons (if there are charges/ions) are balanced. ...
CrCl 3 溶解在热力学上是自发的 [8] (由前文分析,至少在CFSE上有利),但在动力学上是困难的 [4] ,因而溶解是缓慢的,Cr(Ⅱ)所形成的配离子通常是活性配合物,在水溶液中CrCl 2 的Cl-很容易被H 2 O取代而变成[Cr(H 2 O) 6 ] 2+ ,所以CrCl 2 能很快地溶于水 [4] 。
符合 (1)小问详解: ①上述反应为BaCrO4和对应量的水溶解水浴加热加入过量浓盐酸和无水乙醇(C2H5OH)充分反应,生成CrC13并放出CO2气体,根据质量守恒可知,还生成氯化钡和水,化学方程式为C_2H_5OH+4BaCrO_4+2OHCl=2CO_2↑+4CrCl_3+13H_2O+4BaCl_2。②反应中的乙醇与的反应比例为1:4,投料的物质的量...
1.0■0.80.6●0.4于Cri PCr(OH)3户0.2[Cr(OH)4]o0 2 4 6 8 10 12 14pH CrC Cr(OH)请补充完整由 溶液制备纯净的的实验方案:取适量( (」溶液,, ;充分反应后过滤, 用蒸馏水洗涤沉淀,___,则证明沉淀已洗涤干净;低温烘干沉淀,得到CT(OH)晶体。(5)铬、钙、氧可形成一种具有特殊导电性的复合氧化物...
Jadhav H, Taarning E, Pedersen CM, Bols M. Conversion of D-glucose into 5-hydroxymethylfurfural (HMF) using zeolite in [Bmim]Cl or tetrabutylammonium chloride (TBAC)/CrCl2. Tetrahedron Lett. 2012;53(8):983–5.Harishandra Jadhav,Esben Taarning,Christian Marcus Peersen, et al.Conversion of...
Determine what is oxidized in the following reaction: Mg + 2HCl rightarrow MgCl_2 + H_2 For the reaction below, identify the atom oxidized: {Fe} + V_2O_3 rightarrow {Fe}_2O_3 + {VO} Identify the oxidizing agent...
Question: On the basis of the spectrochemical series, determine whether the given octahedral complex is low spin or high spin. {eq}{{\left[ \text{CrC}{{\text{l}}_{\text{4}}}\text{B}{{\text{r}}_{\text{2}}} \right]}^{\t...