How much of each of the solutions is needed to make the buffer? Final volume is...

How much of each of the solutions is needed to make the buffer? Final volume is 10 mL.

stock solutions

1 M HEPES (pH 7.9)

5 M NaCl

1 M BME

100 mM EDTA

750 mM MgCl2

50% glycerol

C) nuclear extraction buffer

20 mM HEPES

1 M NaCl

1 mM BME

0.5 mM EDTA

1.5 mM MgCl2

25% glycerol

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queen_honey_blossom answered 1 year ago

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The final volume of buffer solution must be 100.00 mL and the final concentration of the...

The final volume of buffer solution must be 100.00 mL and the final concentration of the weak acid must be 0.100 M. Based on this information, what mass of solid conjugate base should the student weigh out to make the buffer solution with a pH=5.5?

The final volume of buffer solution must be 100.00 mL and the final concentration of the...

The final volume of buffer solution must be 100.00 mL and the final concentration of the weak acid must be 0.100 M. Based on this information, what mass of solid conjugate base should the student weigh out to make the buffer solution with a pH=7.0 (in grams)? Based on this information, what volume of acid should the student measure to make the 0.100 M buffer solution (in mL)? My weak acid is Sodium dihydrogen phosphate monohydrate, Ka= 6.23X10^-8, 2.00M and...

Classify if any of the following solutions make a buffer. If it is a buffer, indicate...

Classify if any of the following solutions make a buffer. If it is a buffer, indicate what pairs of weak acid/conjugate base, or weak base/conjugate acid act as buffer (a) 0.1M HNO2 mixed with 0.1M HCl solution (b) 0.1M HNO3 mixed with 0.1M NaNO3 solution (c) 0.1M HNO2 mixed with 0.1M NaNO2 solution (d) 0.1M HNO2 mixed with 0.1M NaOH solution.

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how many ml each are needed to make a buffer with 0.12 M HC3H5O3- (KA=1.4 *10^-4) AND 0.15 NaC3H5O3 that has a pH=3.77

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Preparing Buffer Solutions: Calculating the Number of Grams of Conjugate Base Needed Use the table of...

Preparing Buffer Solutions: Calculating the Number of Grams of Conjugate Base Needed Use the table of K values given with this problem to choose the best weak acid to start from for making a buffer that holds the pH of the solution at 3.20. Make your selection so that you maximize the capacity of the buffer. You select a 200.0 ml volumetric flask to which you add 54.00 mL of a 2.90 M solution of the weak acid you just...

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How much of each of the solutions is needed to make the buffer? Final volume is...

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