To find the pH of the solutions of NaOH, HCl, and NaCl, we will analyze each solution step by step.Step 1: Calculate the pH of NaOH solution 1. Identify NaOH as a strong base: NaOH completely dissociates in wat
The balanced chemical equations are shown below. a) HCl with NaOH {eq}HCl + NaOH \rightarrow NaCl + H_2O{/eq} The equation is balanced as is. ... Learn more about this topic: Balancing Chemical Equations | Definition, Process & Examples ...
已知:(HCN(aq))与(NaOH(aq))反应的Δ (=-12.1 kJ·mol^(-1));(HCl(aq))与(NaOH(aq))反应的Δ (=-55.6 kJ·
已知:(HCN)((aq))与(NaOH)((aq))反应的(△ )=-12.1(kJ)⋅ ()^(-1);(HCl)((aq))与(NaOH)((aq))反应的△ =-
C6H5ONa + HCl = C6H5OH + NaCl Recently Balanced EquationsBalance NH2OH + Al + NaOH + H2O = NH3 + Na(Al(OH)4(H2O)2) Using the Algebraic Method To balance the equation NH2OH + Al + NaOH + H2O = NH3 + Na(Al(OH)4(H2O)2) using the algebraic me...
Na2SO4(aq)→ 2Na+(aq) + SO42-(aq) 2H+(aq) + SO42-(aq) + 2Na+(aq) + 2OH-(aq) = 2H2O(l) + 2Na+(aq) + SO42-(aq) Spectator Ions Spectator ions are ions that do not take part in the reaction. They are removed from the complete ionic equation to get the net ionic ...
HCN是弱酸，电离时吸热，所以ΔH为正 HCN和NaOH反应的ΔH包括两点，一是HCN电离的ΔH1，二是H+离子和NaOH反应的ΔH2，即ΔH＝ΔH1+ΔH2 HCl是强电解质，它和NaOH反应不需要电离过程，所以它们反应的ΔH就是H+和NaOH反应的ΔH，即ΔH2 所以ΔH1＝ΔH－ΔH2＝－12.1－（－55.6）＝43.5...
已知:(HCN(aq))与(NaOH(aq))反应的(△ H=-12.1kJ⋅mol^(-1));(HCl(aq))与(NaOH(aq))中和反应的(△ H=-55.6
百度试题 结果1 题目盐酸和氢氧化钠滴定反应的化学方程式:HCl(aq) + NaOH(aq) → ___ + H2O(l) 相关知识点: 试题来源: 解析 答案:NaCl(aq) 反馈 收藏
因为都与相同NAOH反应，那反应热因该一样，而HCN少于HCL,所以是它电离吸收了一部分热量。排除BC.本来应该放出55.6焦耳，现在只有12.1焦耳，所以55.6-12.1=43.5焦耳，又因为吸热，所以ΔH大于零。选A