Define the appropiate amount of sodium salt

Reference no: EM13191029

Prepare 100 mL of a HEPES buffer that has pH = 7.50 and is 90 mM in HEPES. Dissolve the appropiate amount of HEPES (sodium salt) (formula weight is 260.31) in water to an approxiamte volume of 60 mL in a 150 mL beaker that is equipped with a stirring bar. Standardize the pH meter. Then insert the pH electode and titrate the pH to 7.5 +/- .01 using 1.0 M HCl in a Pasteur pipet.

Reference no: EM13191029

Questions Cloud

How many ways can the manager choose which routines : A dance team knows 14 routines of which 7 are tap, 5 are ballet, and 2 are modern. The program can consist of any four routines. In how many ways can the manager choose which routines to present if there are no restrictions?

How many rabbits does the farmer have : How many hens and how many rabbits does the farmer have? I know the answer is 20 rabbits and 30 hens. I need the algebraic formula. Can you help?

Depict a potential energy diagram for the reaction : Please draw a detailed, arrow-pushing mechanism for the addition of HBr to trans-2-butene. 4. Please draw a potential energy diagram for this reaction

What is the subgame perfect equilibrium of the game : Now suppose that there is a second ?rm with cost function c1 (q) above. Whichever cost function ?rm 1 chooses, the second ?rm will observe this choice and then have the option of entering the market or not. If he does not enter, ?rm 1 remains a mo..

Define the appropiate amount of sodium salt : Dissolve the appropiate amount of HEPES (sodium salt) (formula weight is 260.31) in water to an approxiamte volume of 60 mL in a 150 mL beaker that is equipped with a stirring bar.

Find the probability that the student is a male : If one student is randomly selected, find the probability that the student is a male.

Data security or computer-network security : The second research report should include applications of the security theories, principles, and techniques of the subject.

What mistake did she make : A student finds the slope of the line between (14, 1) and (18, 17). She writes alg1.unit test.06.16. What mistake did she make?

Explain in detail of market adjustment in both markets : Airline travels (good X) and driving interstates (good Y) are known to be substitute goods. suppose that a leading airline offers a steep discount on all routes. In the context of the market quantity supplied and quantity demanded diagram.

User Account

All Pages