pH值 于 1909 年由另一名丹麦人 索伦森(Sørensen) 推出, 1912 年,哈塞尔巴尔赫发布了血液 pH 值的测量结果。 1916 年,哈塞尔巴尔赫以对数表示亨德森的方程,与 pH 的对数刻度一致,因此 亨德森-哈塞尔巴尔赫方程(Henderson-Hasselbalch Equation) 诞生了。
For the HH pH calculation, I got 7.092 for all of the solutions (using the corrected pKa value), which I think I am supposed to expect because the ratio of acid to conjugate base stays the same even though the concentration of the solution is changing.Then for the activity coefficient I ...
6 Difference in calculated pH and the real pH of a phosphate buffer 0 pH of amphoteric species 0 Why is the solution of ammonium bifluoride more acidic than aqueous ammonium fluoride? 1 Calculating pH of aqueous ammonium hydrogen sulfide solution 2 Equilibrium Solubility of CO2 in Aqueou...
Re: Calculating PH of Na2hpo4 « Reply #2 on: August 12, 2021, 05:18:14 AM » 1. Write the equations for the respective hydrolysis and dissocation reactions.2. Remember that in the water solution H+ and OH- are linked together.3. Solve system of the equations. Logged Print...
pH values between 7.3-8.5 containing phosphate enol type pyruvate, phosphoenolpyruvate carboxylase, NADH, malate dehydrogenase at a temperature between of 30-37 degree C, after incubation, detecting A1 at 380 nm location; 3) adding the reaction solution of step 1) into the solution of step 2),...
Close, although you forgot about very important characteristics of all halogens. Logged ChemBuddychemical calculators - stoichiometry, pH, concentration, buffer preparation,titrations.info mrsmith New Member Posts: 5 Mole Snacks: +0/-0 Re: Calculating Molarity given % by volume ...
(number of moles = mass / relative atomic mass) If you know any more, it would be really useful for me though . 3. The attempt at a solution Ar(Cu) = 63.5 Ar(O) = 16.0 Ar(C) = 12.0 CuO = 1 / (63.5 + 16.0) = 79.5g ...
Hey all! I'm a university student employed in a lab for the summer doing a bunch of immunohistochemistry. PBS (phosphate buffer) is a common solution used in the procedures so I've made it up several times using a recipe already present in the lab. The recipe is for a 10X PBS solutio...
Here is my question I want to clear up: after the equivalence point, when 20mL of NaOH has been added altogether, how would you calculate the pH? This is what I did; I assumed that all of the OH- ions had been neutralised so therefore the amount of NaOH in excess is 10mL, since ...
Re: Calculating weight needed to make a solution «Reply #1 on:May 12, 2010, 01:36:49 PM » Looks OK. Watch number of significant figures. Logged ChemBuddychemical calculators - stoichiometry, pH, concentration, buffer preparation,titrations.info ...