every element in HCl + NaOH = NaClO + H20 must have the same number of atoms on each side of the equation. When using the inspection method (also known as the trial-and-error method), this principle is used to balance one element at a time until both sides are equal and the chemical...
用HCl溶液滴定某碱液,先以酚酞为指示剂,消耗HCl体积为V 1 ,再以甲基橙为指示剂,消耗HCl体积为V 2 。若V 1 =V 2 ,则该碱液组成可能为( )。A.Na 2 CO 3B.NaHCO 3C.NaOHD.NaOH+Na 2 CO 3的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答
a. CH3COOH+NaOH rarr CH3COONa+H2O {:("Initial", " "25 "mL", " "50 "mL" , 0),(,xx0.1 M , xx0.1 M, ),(,=2.5 "mmol",= 5 "mmol",),("Final"," " 0, " "2.5 "mmol" , 2.5 "mmol"):} This is basic solution due to NaOH. This is not basic buffer. b. CH3COOH+
酒石酸钠 (NaKA) 经灼烧,溶解,以酚酞为指示剂, HCl 滴定时, NaKA 与 HCl 的物质的量之比是( )。(注:灼烧后 1mol NaKA 相当于 1mol NaKCO 3 )A.1:2B.1:1C.2:1D.1:4的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.
【解答】解:(1)HCl+NaOH═NaCl+H2O反应的实质是氢离子与氢氧根离子生成水,离子方程式:H++OH-=H2O;故答案为:H++OH-=H2O;(2)2Na+2HCl═2NaCl+H2的反应的实质是钠与氢离子反应生成钠离子与氢气,离子方程式:2H++2Na=2Na++H2↑;故答案为:2H++2Na=2Na++H2↑. 【分析】(1)氯化氢、氢氧化钠、氯化钠需要...
Spectator ions are ions from initial reactants that did not participate in the net ionic equation. For the reaction between HF and NaOH, what is the spectator ion? H^+(aq) + NO3 (aq) + K^+(aq) + OH (aq) → K^+(aq) + NO3 (aq) + H2O(l) The spectator io...
在下列反应中,HCl 作氧化剂的是( ) A. NaOH+HCl═NaCl+H2O B. Zn+2HCl═ZnCl2+H2↑ C. MnO2+4HCl(浓)M
A.0mol.L-1HCl滴定NaOH溶液的突跃范围是pH=3.3～10.7。当浓度改为0.010mol.L-1时,其滴定突跃范围将是多少? 点击查看答案 4.A.The noise came from the tires.B.The noise came form. the brakes.C.The noise came from Mrs. Jones' singing.D.The noise came from another car passing by. A.TheB...
The generally used method is to treat with HCl and then to form chitosan beads by adding it into the NaOH solution. It will be a better choice to functionalize the chitosan avoiding the use of acids and alkalis to obtain active base catalyst. 正在翻译,请等待... [translate] ...
NaCl = HCl + Na3(PO4) must have the same number of atoms on each side of the equation. When using the inspection method (also known as the trial-and-error method), this principle is used to balance one element at a time until both sides are equal and the chemical equation is...