2018年4月6日 · #pH=-log[0.015]# Plug this into your calculator, and the answer will be #color(red)(1.82#, with significant figures (note that the digit #1# in the answer does not count …

2017年3月4日 · This K_a is on the order of 10^(-5) or less, so to an even better approximation, x=[H"^(+)] is indeed small in comparison to "0.32 M".

2018年3月14日 · Here's what I got. For starters, I think that the question is either missing the option 4.75 or one of the options given to you was mistyped. The idea here is that adding a …

Acids: 1-6 Bases: 8-14 Neutral: 7 All values in whole integers, real values may be continuous. The definition of pH is from the auto-dissociation of water, with an equal number of OH^- and H^+ …

2016年6月23日 · And pH=-log_10[0.90] For a better approximation, we need pKa_2 for bisulfate anion, HSO_4^-, though this is still pretty low. Chemistry Science

2018年4月30日 · "pH"=0.00 By definition, "pH"=-log["H"^+] where ["H"^+] the proton concentration in the solution in "mol"*"dm"^(-3). For example, a solution in which …

2016年10月18日 · #pH=-log_10[H_3O^+]=-log_(10){5.86xx10^-3}# #=# #2.23# As carboxylic acids go, this is a fairly low #pH# . Why should formic acid be more acidic than say propionic …

2018年5月24日 · Calculate the pH of a #"0.2 M"# solution of #"NaC"_2"H"_3"O"_2# given that the hydrolysis constant is #K_h = 5.6xx10^(-10)#?

2016年12月11日 · And thus pH+pOH=14 (for water under standard conditions). ... You have pH=0.7, and thus pOH=13.3. What is ...

2016年9月19日 · What is the pH of a 0.500 M solution of acetylsalicylic acid, pK 3.52? Chemistry Acids and Bases pH ...