Methyl orange solution 0.1 percent

Answer 1

1. Weigh 0,1 g of metyl orange on an analytical balance to the nearest o,oo1 g.

2. Dissolve o,1 g of methyl orange in approx. 80 mL of distilled water in a volumetric flask of 100 mL.

3. Maintain the flask 30 min in a thermostat at 20 0C.

4. Add water up to the mark.

5. Transfer the solurtion in a clean and dry bottle.

6. Join an adequate label on th bottle (name of the solution, concentration, date, operator).

Answer 2

A 0.1% methyl orange solution means that there is 0.1g of methyl orange dissolved in 100mL of solution, resulting in a solution with a orange-red color. Methyl orange is a pH indicator that changes color from red at low pH levels to yellow at high pH levels.