pH = -log[H3O+] The pH of an aqueous solution is equal to the negative logarithm (base 10) of the Molar concentration of hydronium ions. HCl is a strong acid, so we can assume that it ionizes completely. In other words: [H3O+] at equilibrium = ini...
pH is defined as negative logarithm to base 10 of hydrogen concentration ([H+]) expressed in moles/litre. p stands for power and H for hydrogen ion concentration. pH = –log10 [H+] or pH = log10 1/[H+] when, HCl is 0.1 M [H+] = 0.1 M = 10-1M pH = –...
Hi, as professor Thomas Proft said pH= -log[H3O+], thus HCl 1M has a pH=-1, however pH has been defined between 0 and 14, according to the water constant (pK=14). Then the pH term has significance ...
The hydrogen ion concentration is the same as the concentration of the acid because HCl is a strong acid and dissociates as follows: HCl -> H^+ + Cl^- (notice the 1:1 ratio of HCl and H^+) A 1M HCl solution has a pH of 0 A 0.1M HCl solution has a pH of 1 a 0.01M HCl solution has a pH of 2 This video discusses additional examples Noel P.
CH4 has a neutral pH, around 7. On the other hand, substances such as hydrochloric acid, HCl, are held together by polar ionic bonds and when placed into water the hydrogen will break away to form hydrogen ions, making the liquid acidic.HCl therefore has a very low pH and is a very strong acid.
The pH is defined as the minus logarithm of concentration of H+ ions. Since, HCl dissociates completely in water, the concentration of H+ ions will be 10M. Therefore, pH = -log [H+] = -log 10 = -1.
pH is defined as negative logarithm of H+ ion concentration. Formula is pH=-log[H+]. Molarity of given HCl is 0.1 M. Therefore its concentration is 10^-1mol/L, pH=-log[10^-1]=-1(-log10)=log10=1.
the pH of the solution of acid is calculated after knowing the hydrogen ion concentration in the solution. formula used is: pH = - log[H+] putting the values in the above equation. pH = -log[0.1] pH = 1. the value of pH shows that HCl is a strong acid and the solution of the HCl given in the question is highly acidic. learn more...
0.01 M HCl means that there is 0.01 moles of HCl in every 1 Litre of this solution. HCl dissociates in water according to: HCl = H+ (aq) + Cl- (aq) therefore for every mole of HCl we get one mole of H+ (acid). pH = -log(concentration of H+) And we know that the concentration of H+ = the concentration of HCl, therefore pH = -log (0.01M) = 2.
NaCl, does not produce any hydronium ions when it dissolves, so the pH of an NaCl solution would be the same as the water it's dissolved in - 7.0. The 0.01 M HCl however dissociates completely into H+ (the hydronium - H3O+ in water) and Cl- ions. Thus there are 0.01 moles of H+ in it. pH = -(log([H+]) so, the log of 0.01 = -2 and pH = 2.