An indicator, HIn, has a Ka of 1.5 x 10-6. The color of the neutral form is red and that of the ionized form is yellow. Predict the colour of this indicator in a solution with a pH of 10.50.
An indicator, HIn, has a Ka of 1.5 x 10-6. The color of the neutral form...
a) An unknown indicator (called “HIn”) has a Ka of 4.0 x 10-6. The color of the neutral form is green, and that of ionized form is red. The indicator is added to a HCl solution, which is then titrated against a NaOH solution. At what pH will the indicator change color? b) 350. mL of a NaOH solution was added to 500. mL of 2.50 M HNO2. The pH of the mixed solution was 1.75 units greater than that...
A certain indicator, HA, has a Ka value of 2.0 x107. The protonated form of the indicator is blue and the ionized form is yellow What is the pKa of the indicator? Number What is the color of this indicator in a solution with pH 5? O blue O yellow O green
A certain indicator, HA, has a K, value of 0.00032. The protonated form of the indicator is red and the ionized form is yellow. What is the pK, of the indicator? pk = What is the color of this indicator in a solution with pH = 6? O yellow red orange
A certain indicator, HA, has a K, value of 0.00040. The protonated form of the indicator is yellow and the ionized form is red. What is the pK, of the indicator? PK = What is the color of this indicator in a solution with pH = 5? O yellow orange red
A certain indicator, HA, has a K value of 1.6 x 10^-7. The protonated form of the indicator is blue and the ionized form is yellow. What is the pKa of the indicator? What is the color of this indicator in a solution with pH = 9?
15. The acid-base indicator bromocresol green has a Ka of 6.3 x 10-5. Its protonated form is yellow while its deprtonated form is blue. If bromocresol green is added to a colorless solution with a pH of 8, then what will the color be?
pls don't answer if cant help with all :) 1a. 1b. 1c. A certain indicator, HA, has a Ką value of 1.0 x 10-5. The protonated form of the indicator is red and the ionized form is yellow. What is the pKa of the indicator? pKa What is the color of this indicator in a solution with pH = 7? yellow red O orange The half-equivalence point of a titration occurs half way to the equivalence point, where half of...
A certain indicator, HA, has a ?a value of 1.6×10−5. The protonated form of the indicator is red and the ionized form is yellow. What is the p?a of the indicator? p?a =
1. The pH of a 50.0 mL solution of 0.500 M HSCN (the analyte) was measured and found to be 3.80. What is pKa for the acid based on this measurement? 2. Trace amounts of an Indicator HIn was added to the solution described above. The indicator has a pKa (pkIn) of 11.85. This indicator is known to be yellow in solution in the form HIn and blue in solution in the form In- . In a forward titration, a...
How do you get the answer just a little confused Version 1 12. Methyl red is a common acid-base indicator. It has a Ka equal to 6.3 x 10-. Its un-ionized form 7.82 is red and its anionic form is yellow. What color would a methyl red solution have at pH A) violet B) yellow C) green D) blue E) red 13 Assuming egual concentrations of conllgate hase and acid uhich one of tho f uolu, n a