A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...

Question

Question

A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetr

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

50 ml here 500

Add a comment

Answer 2

Similar Homework Help Questions

analytical balances that are accurate to 0.0002 g; volumetric flasks of 50, 100, 250 and 500 mL; and volumetric pipets...

analytical balances that are accurate to 0.0002 g; volumetric flasks of 50, 100, 250 and 500 mL; and volumetric pipets of 1, 2, 5, 10 and 25 mL. Describe how to prepare a solution containing 1.00 ug/mL of Ag+ (FM 107.87) starting from pure AgNO3 (FM 169.88), using only the glassware listed and specifying the mass of the starting material to be at least 0.2 g to ensure sufficient precision. Weigh out g of the starting material to 0.0002 g...
Start with a 1230.0 ppm Stock Zn solution. Prepare control 1 by diluting 2.00 mL of Stock Zn solution in a 200.0 mL...

Start with a 1230.0 ppm Stock Zn solution. Prepare control 1 by diluting 2.00 mL of Stock Zn solution in a 200.0 mL volumetric flask and dilute to the mark. Prepare control 2 by diluting 2.00 mL of control 1 into a 100.0 mL volumetric flask. What is the Zn concentration (ppm Zn) in control 2? Report your answer to 4 decimal place.
D Question 1 2 pts 0.635g of NaOH was placed in a 250 mL volumetric flask...

D Question 1 2 pts 0.635g of NaOH was placed in a 250 mL volumetric flask and distilled water was added to the 250.00 mL mark. What volume of 0.231M sulfuric acid, in mL, is required to titrate a 25.00 mL aliquot of the NaOH solution? Round your answer to two decimal places. Molar Mass: Na 23.0 g/mol, S 32.1 g/mol, O 16.0 g/mol, H 1.0g/mol

You are asked to prepare 500 ml of a 0 250 M acetate Puffer at pH...

You are asked to prepare 500 ml of a 0 250 M acetate Puffer at pH 5.00 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76). 3 00 M NaOH, water. Answer the following questions regarding the preparation of the buffer. How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. What volume of 3.00...
Starting with a 25.0 mL 5.0 M CuSO4 solution, show how you would prepare 25.0 mL...

Starting with a 25.0 mL 5.0 M CuSO4 solution, show how you would prepare 25.0 mL of each of the following solutions: 2.5 M, 1.0 M, 0.5 M CuSO4. Assuming you have only one 25.0 mL flask to prepare three solutions, should you prepare the most concentrated or dilute solution first? Explain. Does the volumetric flask have to be dry before you use it to prepare the next solution? Explain. When using a pipet that has the marking TD on...
Prepare 250 mL of-0.02 M K2Cr2O7 by transferring an accurately weighed amount of the dried dichromate into a 250 mL volumetric flask and diluting to the mark. Since this is a volumetric preparat...

Prepare 250 mL of-0.02 M K2Cr2O7 by transferring an accurately weighed amount of the dried dichromate into a 250 mL volumetric flask and diluting to the mark. Since this is a volumetric preparation, the exact concentration of the titrant will be based on the analytical weight of the potassium dichromate used to prepare the solution. . Analysis of the Unknown FeO Sample Accurately weigh four (4)-0.3 g samples of the dried unknown into four 400 or 600 mL beakers. Add...

Calculate the initial concentration of iron(III) in solution #1, #2, #3. Beaker (mL) Table 1. Reagent...

Calculate the initial concentration of iron(III) in solution #1, #2, #3. Beaker (mL) Table 1. Reagent Solutions Provided by the Stockroom Solution Name Reagent [Reagent] (M) Volume (mL) Standard iron Fe(NO3)3 2.50 x 10 in 0.10 M HNO3 nitric acid HNO3 0.10 120 35 50 250 conc. SCN KSCN 0.50 30 50 dilute SCN KSCN 2.50 x 10-3 30 50 Worksheet 1 #1 5.00 #2 10.00 #3 15.00 Dilute iron (mL) [Fe**] (M) [Fe(SCN)?*] (M) %T 480 58.9 35.8 21.5...
1. Why would a chemist, when tasked with preparing a small volume of a dilute solution...

1. Why would a chemist, when tasked with preparing a small volume of a dilute solution use a dilution technique (i.e., prepare a dilute solution from a concentrated stock solution) rather than just weighing out the exact amount of solid material and dissolving it in the volumetric flask to make one solution only? 2. Calculate the number of grams of CuCl2.2H20 solid needed to prepare 25.00 mL of 0.0450 M CuCl2.2H2O solution. Show your work in the space below. 3....
Hello, in the book: Quantitative Chemical Analysis (9th Edition) Ch. 18 question number 24. All p...

Hello, in the book: Quantitative Chemical Analysis (9th Edition) Ch. 18 question number 24. All parts I need the steps/answers to check. Thanks. Preparing standards for a calibration curve. Part A) How much ferrous ammonium sulfate (Fe(NH4)2(SO4)2 * 6H2O, FM 392.15) should be dissolved in a 500-mL volumetric flask with 1M H2SO4 to obtain a stock solution with 1000 microgram Fe/mL? Part B) When making, stock solution (a), you weighed out 3.627g of reagent. What is the Fe concentration in...

How to prepare these dilutions? 1. With access to 100 ppm riboflavin solution (50 mg riboflavin...

How to prepare these dilutions? 1. With access to 100 ppm riboflavin solution (50 mg riboflavin and 2.5 mL glacial acetic acid in 500 mL of distilled water), Prepare 25.00 mL of the riboflavin solution at 20 ppm in the 1:1 mixture of distilled water : 10% phosphate buffer. (The previous step was to make a 1:1 mixture of distilled water : 10% phosphate buffer of 30 mL) 2. Prepare 25.00 mL of a 100 ppb stock solution from the...

A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...

Homework Answers

Add Answer to:
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...

Post as a guest

Earn Coins

analytical balances that are accurate to 0.0002 g; volumetric flasks of 50, 100, 250 and 500 mL; and volumetric pipets...

Start with a 1230.0 ppm Stock Zn solution. Prepare control 1 by diluting 2.00 mL of Stock Zn solution in a 200.0 mL...

D Question 1 2 pts 0.635g of NaOH was placed in a 250 mL volumetric flask...

You are asked to prepare 500 ml of a 0 250 M acetate Puffer at pH...

Starting with a 25.0 mL 5.0 M CuSO4 solution, show how you would prepare 25.0 mL...

Prepare 250 mL of-0.02 M K2Cr2O7 by transferring an accurately weighed amount of the dried dichromate into a 250 mL volumetric flask and diluting to the mark. Since this is a volumetric preparat...

Calculate the initial concentration of iron(III) in solution #1, #2, #3. Beaker (mL) Table 1. Reagent...

1. Why would a chemist, when tasked with preparing a small volume of a dilute solution...

Hello, in the book: Quantitative Chemical Analysis (9th Edition) Ch. 18 question number 24. All p...

How to prepare these dilutions? 1. With access to 100 ppm riboflavin solution (50 mg riboflavin...

A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...

Homework Answers

Add Answer to: A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...

Post as a guest

Earn Coins

Add Answer to:
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...