a CH3COONH3CH3 + b HCl = c CH3COOH + d CH3NH3Cl Step 2: Create a System of Equations Create an equation for each element (C, H, O, N, Cl) where each term represents the number of atoms of the element in each reactant or product. C: 3a + 0b = 2c + 1d...
Is a solution that is 0.10 M in HNO2 and 0.10 M in HCl a buffer solution? Explain. Can a combination of H2CO3 and H3PO4 be used to make a buffer solution? Explain. Is a solution that is 0.100 M in HNO3 and 0.100 M in NaNO3 a buffer solution? Explain. Can NH4...
Ab initio calculations of electric field gradient have been performed for the H-bonded directs B…HCl, where B=CO, HCN, H2O, H2S, C2H2, C2H4, NH3, PH3 and CH3CN, with an STO/4-31G basis set. The influence of geometry relaxation on the properties is investigated. The nuclear ...
10.HCL ,SO3,NH3的水溶液可以导电,但是非电解质。11.全部由非金属元素组成的物质可以使离子化合物。如:NH4CL。12.ALCL3是共价化合物,熔化不能导电。13.常见的阴离子在水溶液中的失去电子顺序:F-PO43-SO42-NO3-CO32-OH-CL-Br-I-SO3-S2- 14.金属从盐溶液中置换出单质,这个单质可以是金属,也可以是非金属...
甲胺(CH3NH2)与盐酸反应生成甲胺盐酸盐(CH3NH3Cl)。25℃时,向一定体积0.01mol·L-1CH3NH2水溶液(对应图中M点)中缓慢通入HCl气体,溶液的pH与pOH[pOH=-lgc(OH-)的关系如图所示。下列叙述不正确的是 A.图中a=2.7,b=5 B.该过程中,增大 C.Q点溶液中溶质为CH3NH3Cl和CH3NH2 D.N点溶液中:c()=c(Cl...
下列化学方程式书写正确的是( ) A. 2+2NaHCO3→2 +CO2↑+2H2O B. CH3CONH2+H2O+HClCH3COOH+NH3Cl C. +3
3 + HCl + CO2 + H2O 复合系数摩尔质量摩尔(克/摩尔)重量(克) 反应物 甲醛 氯化铵 COH2 9 30.02598 NH3·HCl 2 53.49146 产品 三甲胺 氯化氢 二氧化碳 水 N(CH3)3 2 59.11026 HCl 2 36.46094 CO2 3 44.0095 H2O 3 18.01528
比较下列化合物碱性强弱。跪求!NH3, h2co3, ch3nh2 化合物碱性强弱:NH3 >CH3NH2 >H2CO3;[1.因为同基的无机碱性大于有机的;2.H2CO3属于酸].
CO分子为极性分子,分子间存在着取向力、诱导力、色散力,其分子量又比Ne大,分子间的色散力大于Ne,因此CO的沸点高于Ne。 HF分子间除存在取向力、诱导力、色散力以外,还存在分子间氢键,因此HF的沸点最高。 .下列性质中哪种物质的最强? (1)键能:HF、HCl、HBr、HI (2)晶格能:NaF、NaCl、NaBr、NaI (1)其中HF...
S HCl > > CCl3F或CClF3 【分析】(1)根据所给信息为第二周期中水和HF的易燃性依次降低得出原子序数越大,越难燃烧,据此解答;(2)依据所给化合物的毒性,磷化氢大于氨气以及四氯化碳的毒性大于四氟化碳得出,原子序数越大,氢化物的毒性越强;(3)组成和结构相似的物质,相对分子质量越大,沸点越高.如沸点:CF4<CCl4...