CH2=0 中 0有孤对电子.会和CH3NH2中的H形成氢键.CH3NH2中 N电负性较大.外存 -NH2 N也会和CH2=0中的H和自己当中的H原子形成氢键.因为N有孤对电子 H30+,NH4+ ,H20,NH3,都会存在氢键.因为0 N的电负性较大,吸电子能力强,半径又小,加上含F等化合物可以成氢键.B(OH)3也可以.不过只有B(0H)3其他的...
解析 (1)即有共轭酸也有共轭碱,共轭酸是CH3NH3+,共轭碱是CH3NH2-; (2)共轭酸是CH3OH; (3)即有共轭酸也有共轭碱,共轭酸是CH3CH2OH2+,共轭碱是CH3CH2O-; (4)共轭酸是H2; (5)共轭酸是CH4; (6)共轭碱酸是CH3CH2+,共轭碱是CH2=CH-。反馈 收藏 ...
CH3CH2CH2CH2OH174.1216 NaCl158.44276928 N2128.0134 H2O118.01528 这个计算器将确定反应的限制试剂。 Instructions To calculate the limiting reagent, enter an equation of a chemical reaction and press the Start button. The reactants and products, along with their coefficie...
C3H6 + HNO3 = CH3CH2COOH + NO + H2O C2H4O2 + H2O = CH3OO{-} + H{+} NH3 + KOH = K + NO + H C3H7OH + O = C2H4O2 + H2O 近期平衡的方程式 練習 (C2H5)2NH-++NaNO2-++HCl-+ = CH3CH2CH2CH2OH-++NaCl-++N2-++H2O-+
CH2=0 中 0有孤对电子。会和CH3NH2中的H形成氢键。CH3NH2中 N电负性较大。。外存 -NH2 N也会和CH2=0中的H和自己当中的H原子形成氢键。。。因为N有孤对电子 H30+，NH4+ ，H20，NH3，都会存在氢键。。因为0 N的电负性较大，吸电子能力强，半径又小，加上含F等化合物可以成氢键。。B...
常温下向CH3NH2·H2O溶液中滴加稀硫酸至c(CH3NH2·H2O)=c(CH3NH E. [常温下CH3NH2·H4O的电离常数为K3,pK+=-lg K-=3.4。根据(CH3NH2)2SO3溶液类似硫酸铵溶液分析判断,c(CH2NH)>c(SO)>c(H2)>c(OH3),故A错误。CH2NH2·H3O是弱碱,常温下,pH=3的盐酸和pH=11的CH2NH2·HbO溶液等体积混合...
槟榔碱在医疗上常用于治疗青光眼,其一种合成路线如下:CH3CH2OCCH2CH2NH3C2H5ONa HC5H8O2C8H13O3N NH C8H15O3N Ni A一定条件CH3CH2OCCH2CH2C D反应①II CH OH /H2O BCH3OH计CH2CH2CH3I/H2O C7H11O2N浓H2SO4、△(CH2CH2e反应②C6H11O3N CH2反应④H反应③CH2E CCH COOCH3CH COOH槟榔碱G已知:I.不...
a C2H5COOH + b CH3NH2 = c CH3CH2COH + d H2O + f N2 Step 2: Create a System of Equations Create an equation for each element (C, H, O, N) where each term represents the number of atoms of the element in each reactant or product. C: 3a + 1b = 3c +...
11C2H5COOH + 6CH3NH2 = 13CH3CH2COH + 9H2O + 3N2. Enter the amount of any of the substances to determine the ideal amounts to maximize the theoretical yield of the reaction. To find the limiting and excess reagents when a non-ideal amount of each substance is used, ...
Which would be more soluble in C6H14: CH3NH2 or CH3CH2CH2CH2NH2? Explain. Polar and Nonpolar Molecules: Polar molecules have a net dipole caused by the presence of bond dipoles that do not cancel out due to a lack of symmetry. This results in one side of the mole...