3. Explain why methyl orange is orange-yellow in alkaline solutions and orange-red in acidic solutions in...
2. Methyl orange indicator is red below pH 4.0, and yellow above 4.5. Consider two solutions: One contains NaOH, and the other contains H,904. Which solutic turn red? Which will turn yellow? Explain. Household Acids and Bases and pH Lab:
b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range of pH:
3. Methyl red is an indicator that changes between red and yellow. In solution methyl red (HMR) dissociates as follows: HMR red H'(g) + MR (ac) yellow If acid is added to the solution which way do you expect the equilibrium to shift? What color would the indicator be? Explain your conclusion: If base is added to the solution which way do you expect the equilibrium to shift? What color would the indicator be? Explain your conclusion:
250 Experiments 2. A solution causes a yellow color with thymol blue, an orange color with methyl orange, a color with methyl red, and a yellow color with bromthymol blue. The pH must le between and The estimated pH is_ b. A solution causes a yellow color with thymol blue, yellow colors with both methylona and methyl red, and a green color with bromthymol blue. The pH must lie between and The estimated pH is
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) = H(aq) + MO"(aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH the color reverts to yellow a. Why does adding 6 M HCl to...
A substance is orange in methyl orange, purple in crystal violet, yellow in bromthymol blue, colorless in phenolphthalein, green in bromcresol green, and yellow in allizarin yellow-R What is the narrowest pH range it can have Explain:
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
disregard the second picture of questions
( UUTUUUUU 2. The equilibrium for the indicator methyl orange is HC14H14SO3(red) + H20 C14H14SO, (yellow)+H30 The reaction is exothermic. a. Explain in words, what happens when this is added to an acidic solution. - What is the analyte in a titration? What was your analyte in your titration? What is the titrant in a titration? What was your titrant in your titration? What does it mean to condition your graduated cylinder and buret?...
(1 punt) viethyl orange is an acid-base indicator. In solutions of pH <3.1 it is red (absorbs around 550nm), and in solutions of pH > 4.4 it is yellow (absorbs around 650nm). Identify which structure is fed and which is yellow. Draw at least one resonance structure that helps to support your decision. 5. (1 point) A solution of 4-methyl-3-penten-2-one in ethanol shows an absorbance of 0.52 at 236 nm in a cell with a 1.00 cm light path. Its...
Use the Table 7.1, estimate the pH of following solutions. The colors of the 4 indicators in the solution are given. Explain your answer a. Solution A 2. 3. Make studie acid s you g your pre-l thymol blue: yellow methyl orange: yellow methyl red: orange bromothymol blue: yellow Range of pH b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range of pH Row C: methyl red Row D: bromthymol blue 4. Swirl...