The pH of a 0.1 M solution of NaOH is 13. To calculate pH, start with pOH in this case as NaOH is a base. pOH = - log[OH] pOH = -...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
pKa is the measurement of acidity or basicity of achemicalorfunctional group. The acidity or basicity of a chemical or functional group can be defined in two ways: The ability to accept or donate a proton. The ability to accept or donate a lone pair of electrons. ...
In essence, almost no NaOH is present in the solution. A solution of NaOH contains its dissolved ions. Due to the formation of hydroxide ions, we can expect a pH value that is greater than 7.00.Answer and Explanation: The pH of the solution can be determined from the pOH by using the ...
What is the pH of the buffer prepared by adding 20 mL of 0.20 M sodium hydroxide to 50 mL of 0.10 acetic acid? (pKa of acetic acid = 4.76) A buffer solution is prepared by adding 15.00 g of sodium acetate and 12.50 g of...
where HA is the acid and A- is the conjugate base. Ka = [A-][H3O+] / [HA][H2O] This is used to calculate pKa, the logarithmic constant: PKA = – log10 Ka The larger the pKa value, the smaller the dissociation of the acid and the weaker the acid. Strong acids have a pKa of...
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The given indicator goes from colorless to blue from a pH of 9.3 to 10.5. The pKa value of an indicator is close to the middle of the useful range...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it ris...
认真负责、字斟句酌的译员与草草了事的译员相比，其译文质量[u] [/u]。翻译的质量和效果直接关系到中国故事能否传播出去，关系到中国国家形象的塑造，关系到中国国际话语权的提升。译者一定要端正态度，提高翻译质量，这对加强中国的国际传播能力建设[u] [/u]。 依次填入画横线部分最恰当的一项是：
As a very weak base with a pKa of 8.2, benzotriazole exhibits more acidity than indazole, benzimidazole, and 1,2,3-triazoles. Its stability is enhanced by the fused benzene ring, which contributes to the stability of the conjugate base. ...
Answer to: A buffer solution is made using a weak acid, HA. If the pH of the buffer is 6 and the ratio of A^- to HA is 0.001, what is the pK_a of...