Question

How would you use a stock solution of 1 X 10-3 M 2-naphthol (in 95% ethanol)...

How would you use a stock solution of 1 X 10-3 M 2-naphthol (in 95% ethanol) in a 25 ml flask to create a 1.0 M HCl solution that contains the final concentration of 2-naphthol to be approximately 2 X 10-4 M

Homework Answers

Answer #1

Solution:

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1) How many moles of acid are there in 17 ml of a 7.1 M HCl...
1) How many moles of acid are there in 17 ml of a 7.1 M HCl solution? 2) 18 ml of a 1.0 M HCl solution was added to a flask and titrated against a solution of 3.8 M NaOH. How many ml of the NaOH solution was required to neutralize the acid? 3) What volume (in liters) of a 2.8 M NaOH solution would neutralize 4.8 moles of H2SO4 (diprotic)? 4) Using the formula M1V1 = M2V2, calculate the...
If you were preparing a series of two 10% dilutions of pretend 1M HCl. You would...
If you were preparing a series of two 10% dilutions of pretend 1M HCl. You would have 3 test tubes labeled, 1, 2 and 3. Test tube 1 would be filled with 10 mL of the 1 M HCL. Always Add Acid to Water. This rule must be followed in order to prevent splattering of the acid. Use the formula to determine how much water should be added to test tube #2 to prepare a 10% dilution. The final desired...
The stock sperm solution you will use for fertilization is "1 drop in 50ml ASW" Undiluted...
The stock sperm solution you will use for fertilization is "1 drop in 50ml ASW" Undiluted sea urchin sperm fluid contains about 2 x 10^10 sperm/ml (assume one drop is 0.5 ml) What is the dilution factor, and what is the final concentration you are using?
1. A certain solution has a concentration of 1.0 x 10-4 M of OH-. Which of...
1. A certain solution has a concentration of 1.0 x 10-4 M of OH-. Which of the following statements is true? Select one: A. The solution has a pH of 10. B. The solution is acidic. C. The solution has a pH of 4. D. The solution has a H+ concentration of 1.0 x 10-4 M as well. 2. How do you know an acid is weak? Select one: a. It does not totally dissociate in water, setting up a...
SHOW ALL WORK 1. You have a bottle with 1 liter of 90% ethanol. How do...
SHOW ALL WORK 1. You have a bottle with 1 liter of 90% ethanol. How do you make 250 mL of a solution of 50% ethanol? 2. You have a 1 M stock solution of sodium chloride. How do you make 100 mL of a 0.5 M solution of sodium chloride? 3. How many moles of sucrose are in 10 microliters of a 1 M solution of sucrose?
A stock solution of 0.200 M Fe(NO3)3 solution is prepared in a 100 mL volumetric flask...
A stock solution of 0.200 M Fe(NO3)3 solution is prepared in a 100 mL volumetric flask with 1 M HNO3. 10 mL of this stock solution is then pipetted into a beaker and 40 mL of HNO3 is added. This new solution is solution A. Calculate the actual concentration of Fe(NO3)3, determine the number of moles delivered, and the molarity of solution A. 10 mL of solution A is then pipetted into another beaker and 15mL of HNO3 is added....
A 1.0 L solution contains 3.00×10-4 M Cu(NO3)2 and 1.63×10-3 M ethylenediamine (en). The Kf for...
A 1.0 L solution contains 3.00×10-4 M Cu(NO3)2 and 1.63×10-3 M ethylenediamine (en). The Kf for Cu(en)22+ is 1.00×1020. What is the concentration of Cu2+(aq ) in the solution?
Describe how you would prepare 500 mL of a 1.75 M HNO3 solution, starting with a...
Describe how you would prepare 500 mL of a 1.75 M HNO3 solution, starting with a 12.0 M stock solution of HNO3. (Remember to use volumetric flasks when diluting solutions, in this case a 500 mL volumteric flask and remember to dilute the mark).
How would you prepare 2 L of 0.85% NaCl? (MW=58.44 g/mol) (2 pts) 2. You need...
How would you prepare 2 L of 0.85% NaCl? (MW=58.44 g/mol) (2 pts) 2. You need to do a 1/25th dilution, explain how you would achieve this dilution. (2 pts) 3.If you performed a 1/10th dilution two times, what is the final dilution. (2 pts) 4.Your protocol calls for working with a 1.5 x 10-4 M boric acid solution. To save shelf space, you decide to make up a 20X stock solution. What is the molarity of the stock solution...
1. According to your scale down calculations, how much 4-chlorophenolate-2.5 M NaOH solution will you use?...
1. According to your scale down calculations, how much 4-chlorophenolate-2.5 M NaOH solution will you use? How much chloroacetic acid will you use? How much HCl will you add? What volume of 1:2 H2O: Ethanol (EtOH) will you use? 2. Why is HCl needed for precipitation of the product?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT