H2O (l) equal to HCl (aq)? - Chemistry Stack Exchange
2017年2月26日 · The Wikipedia article about aqueous solutions claims that: An aqueous solution is a solution in which the solvent is water So basically, is writing $\\ce{HCl(aq)}$ equal to: $\\ce{HCl(l) + H2O(l)}$?
inorganic chemistry - Dissociation of HCl in aqueous solution ...
2016年6月28日 · $$\ce{HCl + H2O -> H3O+ + Cl-}$$ Why does this dissociation actually occur scientifically? What causes the $\ce{H}$ to leave its electron behind to the $\ce{Cl}$ and form the hydronium ion? Why does water ($\ce{H2O}$) take the additional $\ce{H}$ ion? What is the general concept here in dissociation? Electronegativity?
Strong Acid Reactions: Explaining HCl + H2O → Cl- + H3O
2014年9月13日 · In HCl, the H holds a partial positive charge and the Cl holds a partial negative charge. As a result of these two cases, the O in H2O pulls the H from Cl and the H in H2O pulls the Cl from the H. H+ combines with H2O and forms H3O because the H+ ion is highly reactive.
Reversibility of an acid's reaction with water depending on its ...
2016年4月19日 · $$\ce{HCl + H2O -> H3O+ + Cl- + Heat}$$ This reaction owes its ability to go to completion to the great stability the ions it forms when dissolved in water ($\ce{H+}$ and $\ce{Cl-}$). This ionization is caused by stronger attractive forces between the water and the atoms in a molecule (or ions in a salt) than between the atoms within the ...
HCl/H2O with alkene: Which one reacts? - Chemistry Stack Exchange
2018年5月1日 · I think that the initial step forms a tertiary amine, which then in the presence of the ketone and trace acid undergoes nucleophilic addition. But then, for the $\\ce{HCl/H2O}$ in the last step, whi...
Why HCl is a much stronger acid than H2O? - Physics Forums
2013年6月24日 · I want to know why HCl is a much stronger acid than H2O.They have similar bond energies (H-Cl = 427 kJ/mol, O-H = 467 kJ/mol), so there should be easy to ionize both. Besides, O is more electronegative than Cl, so it should "steal" the electron easier. Why is HCl Ka so superior than water Kw?
Solve a Simple pH Problem: HCl + NaOH → H2O + NaCl - Physics …
2007年4月1日 · As long as you have no weak acid or weak base involved, the problem description presents nothing to confuse you. Simply all of the HCl will be neutralized, and an excess of hydroxide will be present. You can safely ignore any dissociation of water for most of the work. Moles of OH- = 0.5 * 0.2 [OH-] = (0.5)*(0.2)/(40 + 40.5)
How Does Hess's Law Apply to Calculating ΔH in ... - Physics Forums
2013年12月1日 · In the reaction: HCl + NaOH → NaCl + H2O, ΔH = 60.4 kJ/mol In the reaction: CH3COOH + NaOH → CH3COONa +... Insights Blog -- Browse All Articles -- Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides Bio/Chem Articles Technology Guides Computer ...
Why is HCl not considered to have hydrogen bonding?
2015年5月17日 · Seeing that both oxygen and chlorine have a small difference in their electronegativity (oxygen being roughly 3.5 and chlorine being roughly 3.0), why does chlorine in a hydrogen chloride molecule ($\ce{HCl}$) have a dipole-dipole interaction, while the oxygen in a water molecule ($\ce{H2O}$) causes the water molecule to have a stronger form of ...
Heat of Reaction: KOH + HCl --> KCL + H2O, NaOH + H2SO4
2012年9月12日 · Given that for the reaction KOH(aq) + HCL(aq) ----> KCL(aq) + H 2 O(l) H = - 54kjmol^-1. What is the quantity of heat involved in the reaction? 2NaOH(aq) + H 2 SO 4 (aq) ----> Na 2 SO 4 (aq) + 2H 2 O(l)? Homework Equations Heat of reaction Hrn =heat content of product Hp - heat content of reactant Hr. It can be written as Hrn= Hp-Hr The Attempt ...