How much dibasic sodium phosphate should you use to make 75 mL of an 8.1 mM...

Question

Question

How much dibasic sodium phosphate should you use to make 75 mL of an 8.1 mM solution? MV= 141.96 g/mol

A. 1.105 g

B. 0.086 g

C. 0.864 g

D. 1.204 g

E. None of the above

Please show work. Thank you :)

science biology

Answer 1

Answer #1

Answer:

Answer 2

Similar Homework Help Questions

What masses of monobasic and dibasic sodium phosphate will you use to make 250 mL of...

What masses of monobasic and dibasic sodium phosphate will you use to make 250 mL of 0.1 M sodium phosphate buffer, pH = 7?
A sodium phosphate buffer has a concentration of 25 mM. If you take 25 mL of...

A sodium phosphate buffer has a concentration of 25 mM. If you take 25 mL of the buffer and add 75 mL of water, what is the final concentration after the dilution? Show work.
Prepare 250.00 mL of an phosphate buffer (pKa=7.199) with a total phosphate concentration of 0.020000 M...

Prepare 250.00 mL of an phosphate buffer (pKa=7.199) with a total phosphate concentration of 0.020000 M and a pH of 6.900 using the usual method for preparing a buffer using a pH meter, Dibasic Sodium Phosphate and a HCl solution. 1. Calculate the amount of Dibasic Sodium Phosphate (Na2HPO4 FW=141.959) required to prepare this solution. Report your answer in the appropriate units and to the appropriate number of significant figures to match the instrument you plan to use to measure...

1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0...

1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0 (pKa = 7.2) phosphate dibasic (the conjugate base). 2) What are the concentrations of acetate and acetic acid in a 0.2 M acetate buffer pH 5.3? The pKa for acetic acid is 4.76. 3)You have 100 ml of 0.1 M acetate buffer pH 5.2 (pKa 4.76). You add 10 ml of 0.1 M NaOH. Calculate the resulting change in pH and the buffering capacity...
PLEASE SHOW WORK AND BE CLEAR!!!! 1. Calculate the following: How do you prepare 75 mL...

PLEASE SHOW WORK AND BE CLEAR!!!! 1. Calculate the following: How do you prepare 75 mL of 2% ferric chloride from a 10% solution? If you only have ferric chloride crystals, how much do you need? mL H20 mL 8 Esch How many mL of an 11% solution will 300 g of sodium chloride make? 8.25 mL hydrochloric acid diluted to 450 mL is what percent solution? 13.5 g of potassium dichromate will make how many mL of a 5%...
In order to prepare 100 mL of a 0.50 M sodium phosphate buffer, pH 7.9, how...

In order to prepare 100 mL of a 0.50 M sodium phosphate buffer, pH 7.9, how many grams of sodium phosphate monobasic must you add to your solution? Use MW = 137.99 g/mol for sodium phosphate monobasic and pKa = 7.2 for sodium phosphate

Describe how you would make a solution of 50mM sodium chloride, 200 mM phosphate buffer, pH...

Describe how you would make a solution of 50mM sodium chloride, 200 mM phosphate buffer, pH 6.5.
3. How would you make 200 ml of a 250 mM phosphate buffer from a 1M...

3. How would you make 200 ml of a 250 mM phosphate buffer from a 1M stock solution of phosphate buffer? r. nus: how would you make 100 ul of 10 mM glucose solution from a 1M glucose stock solution? int: might need to do a serial dilution, as our pipettes cannot dispense less than 2ul)
How many milligrams of glucose would you use to make 5 ml of a 300 mM...

How many milligrams of glucose would you use to make 5 ml of a 300 mM glucose solution? Show your calculations...Please work this out on loose leaf 4. How many milligrams (mg of glucose would you use to make 5 ml of a 300 mM glucose solution? Show your calculations. Answer

a) You need to make an aqueous solution of 0.194 M sodium phosphate for an experiment...

a) You need to make an aqueous solution of 0.194 M sodium phosphate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium phosphate should you add? b)How many milliliters of an aqueous solution of 0.229 M ammonium iodide is needed to obtain 6.59 grams of the salt?