b).a weak base c).a strong acid d)..a weak acid e)..none of these Conjugate Bases When an acid donates a proton into the aqeuous solution, it forms a base, called its conjugate base. Depending on the strength of the reacting aci...
是不是用 pH = pKa + log10([A-]/[HA]) 这个公式呢?简单翻译如下:用强碱滴定弱酸,当滴定到达完全反应(酸碱正好反应完)的三分之一时,此时的ph=5.55,那么这个弱酸的pka是多少? 2 一道有关pka和ph的英语化学题 A weak acid is titrated with a strong base and during the titration the pH is plotted...
And so I put in to shore, pulled the canoe onto the bank, and turned it over, its slick, wet belly shiny in the weak light of a winter day. I ran my hand over it, as if lulling it to sleep. This had surely been my last opportunity for a canoe ride until spring. But then, ...
1.) “Appear weak when you are strong, and strong when you are weak.”– Sun Tzu "当你坚强时显得软弱,当你软弱时显得软弱。 " 2.) “Can you imagine what I would do if I could do all I can?”– Sun Tzu 你能想象如果我能尽我所能,我该怎么办吗? " 3.) “If you know the enemy...
Re: is potassium carbonate a weak base or strong base? «Reply #2 on:March 31, 2008, 12:30:31 AM » Consider this: Carbonic acid, H2CO3is a weak acid.The conjugate base of a weak acid is a strong base. Thus the carbonate ion is a strong base. Since all group I compounds ...
c. 0.1 M NaOH d. 0.1 M NH3 Properties of Weak Acids: Weak acids are defined by a low extent of ionization when dissolved in water. The lower ion concentrations result in weak acids having slower reaction rates, lower conductivity and higher pH values c...
Assuming you have a strong password and 2 step verification on, you should be ok. It's advised to change your password periodically anyway, so if you haven't done that in the past few months I would. It's a personal decision but for the masses (who mostly have ...
Question: Fill in the blank. The chemical buffer system responds within a fraction of a second to resist pH changes and is called the ___ . Acidosis and Alkalosis: Acidosis and alkalosis are two conditions associated with a significant chan...
君子之交淡如水.A hedge between keeps friendship green. 机不可失,失不再来.Take time while time is, for time will away. 集思广益.Two heads are better than one. 未雨绸缪.Provide for a rainy day. 真金不怕火炼.True blue will never strain. ...
How can water take down a hard stone?Is it possible for the weak to win over the strong?Laozi,a famous Chinese philosopher(哲学家) might give us an answer. Water is (1) the softest thing in nature,but Laozi spoke highly of it.He said the softness of water does n...