13) Bromthymol blue (BTB) is a chemical indicator that is blue all alone. When combined with a basic solution, it turns green as a solution becomes more acidic it turns yellow in an acidic solution. Fill in what color you think bromthymol blue would be in each of the situations in the chart. If solution color is given, simply provide a logical, possible pH value based on the outcomes. Fill in the missing ions as well! Situation pH ВТВ сolor Ion present Water directly out of tap 7.2 pH after exhaled air is blown through a straw into water for 5 5.1 H+ min. pH after a snail has lived in water for three days Very Yellow pH with 2ml of bleach added to the water Very Blue 5.0 pH with instant coffee added to the water pH after an aquatic plant is grown in water for three days in bright sunlight Light Blue OH- 14) Is BTB a chemical indicator? 15) What then does it "indicate"? 16) Based on the data above, why does drinking coffee cause stomach pain for some indivudals? 17) What effect does carbon dioxide have on tap water? 18) Is bleach an acid or a base?

Classify the salts according to strength and role in buffer system. Classifications are as follows: Strong Acid/Conjugate Base, Strong Base/Conjugate Acid, Weak Acid/Conjugate Base, or Weak Base/Conjugate Acid. Example: HCI - Strong Acid/Conjugate Base 1. CaCO3 2. Li2SO3 3. Na₂S 4. Na3PO4 5. KC1 5000000 6. KCN 7. BaClz 8. NSHCO3 9. NACOOCH3 10. N₂HsBr 11. AgNO3 12. KHSO4 13. NaOCI wwwwww 14. NaNO3 15. NaH₂PO4

It was assumed: a) Before any acetic acid was added, essentially all the indicator was in the In- form.  b) After the HCl was added, essentially all the indicator was in the HIn form.  Justify these assumptions using the measured pH of these solutions and your experimental value for pKHIn to determine: 1) The fraction fo the indicator in the HIn form in solution B before any of solution A was added 2) The fraction of the indicator in the In- form after the HCl was added.

can search the web by typing the chemical name followed by SDS) b) what is the best practice to follow if a small amount of sulfuric acid (1M) comes in contact with your bare hand? 2. Write a one or two sentence statement of what the purpose of this lab is. 3. To prepare for laboratory: For each of the eight unknowns solutions that you will identify in lab (see above or table below), identify the chemical color and the pH category (acidic, neutral, or basic) that you expect to find. Prepare a table to summarize your initial expectations for the color and pH tests. A. Introduction- A Fictitious Scenario ne Chem-Police, a division of the Office of Homeland Security created in re-

In the laboratory, a general chemistry student measured the pH of a 0.347 M aqueous solution of quinoline, C,H,N to be 9.184. Use the information she obtained to detemine the K, for this base. K,(experiment) =

The SO3 (gaseous) produced is bubbled in water, until getting a solution of H2SO4 68 % mass/mass density= 1.06 g/cm3 a) calculate the volume of said solution to make 1.5 dm3 of a solution 0.3% mass/volume b) what will be the pH of the more diluted solution? c) what will be the resulting pH of mixing 300 ml of a diluted solution with 250 ml of a NaOH 0.1 molar solution d) calculate the molar concentration of sulfate ions in the final mixture

Solve correctly please.

Is there a pattern to the way pH, amount, K, pressure increases decreases or has no change?

Give answer all sub parts if you not then don't give answer. I will give you upvote