25 Jan Obtain from the stockroom sufficient 0.015% Phenol Red (an indicator) and a 10% solution of NaOH. Use this solution to prepare solution of 0.1% NaOH. Also collect your unknown and record it
1. Obtain from the stockroom sufficient 0.015% Phenol Red (an indicator) and a 10% solution of NaOH. Use this solution to prepare solution of 0.1% NaOH. Also collect your unknown and record its number to be included in your lab report.
2. Prepare 500 ml of 0.1% NaOH in distilled water. This will be enough if you prepare 10 ml or less of each dilution (you need a minimum of 2.5 ml of each).
3. Dilute the Phenol Red solutions with 0.1% NaOH to make 20, 25, 40, 100, 200 and 500- fold dilutions: repeat each dilution 4 times (Yes, that means 24 separate dilutions!). If necessary more test-tubes may be obtained from the stockroom.
WHAT ARE THE VOLUMES OF NAOH AND PHENOL RED NEEDED FOR EACH DILUTION?
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.