Fact: The pH indicator Bromocresol Purple has a pH range of 5.2 (yellöw (purple). Question: You added 8 drops of Bromoscresol Purple indicator to 50 mL of distilled water and your solution appears brown and transparent. What colour would your solution change to if you added 14 drops of 1.0 M NAOH? Think about what you did in the lab. Remember the results are reported on going from acid to base. The solution would be brown in colour and be transparent (see through). The solution would be purple in colour and would be transparent (see through). The solution would be transparent and colourless. The solution would be yellow in colour and would be transparent (see through). The solution would be pink in colour and would be transparent (see through). None of these colours are correct and I choose this answer.

Fact: The pH indicator Bromocresol Purple has a pH range of 5.2 (yellöw (purple). Question: You added 8 drops of Bromoscresol Purple indicator to 50 mL of distilled water and your solution appears brown and transparent. What colour would your solution change to if you added 14 drops of 1.0 M NAOH? Think about what you did in the lab. Remember the results are reported on going from acid to base. The solution would be brown in colour and be transparent (see through). The solution would be purple in colour and would be transparent (see through). The solution would be transparent and colourless. The solution would be yellow in colour and would be transparent (see through). The solution would be pink in colour and would be transparent (see through). None of these colours are correct and I choose this answer.

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter9: Acids, Bases, And Salts

Section: Chapter Questions

Problem 9.108E

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Similar questions

. How is the strength of an acid related to the fact that a competition for protons exists in aqueous solution between water molecules and the anion of the acid?
A solution has a pH of 4.5. What would be the color of the solution if each of the following indicators were added? (See Fig. 14-8.) a. methyl orange b. alizarin c. bromcresol green d. phenolphthalein
Write the Lewis structures of the reactants and product of each of the following equations, and identify the Lewis acid and the Lewis base in each: (a) CS2+SHHCS3 (b) BF3+FBF4 (c) I+SnI2SnI3 (d) Al(OH)3+OHAl(OH)4 (e) F+SO3SFO3
1. What is the pH of the solution that results from adding 30.0 mL of 0.100 M NaOH to 45.0 mL of 0.100 M acetic acid? 2.87 5.05 7.00
Fact: The pH indicator Alizarin Yellow has a pH range of 10.0 (yellow) to 12.0 (red). Question: You added 8 drops of Alizarin Yellow indicator to 50 mL of distilled water and your solution appears yellow and transparent. What colour would your solution change to if you added 20 drops of 2.0 M NAOH? Think about what you did in the lab. Remember the results are reported on going from acid to base. O Your solution would turn red in colour and would be transparent (see through). O None of these answers are correct. Your solution would become colourless. OYour solution would remain yellow in colour and would be transparent (see through). Your solution would turn orange in colour and would be transparent (see through).
I'll give you 100%rating if you answer all questions. They are interconnected with each other that's why I can't post them separately Once upon a time, Rasmus and her brother Simone are doing titration to assess the molarity of the sample's total acid content. Using the pH measurements to report acidity, they were ordered to study a clear aqueous solution of an unknown monoprotic acid.They decided to use two methods of experiments to gather essential data for their Chemistry Class.The first method is through a pH strip. To estimate the pH of the sample, Rasmus used a pH strip. Rasmus collected 1 mL of the sample, which came out to have a pH of around 3.3. Furthermore, Rasmus made a new setup in which 1 mL of the same sample was diluted with 9 mL of water, and the pH taken was now around 3.8.The second method is Titration, and Simone used this method. Simone prepared a 10 mL aliquot of the sample and diluted it with 25mL of distilled water. After this, Simone added 2 drops of…
In the experiment, we used titration to determine the total acid content ofsamples, which we reported in terms of molarity. Reporting acidity through pHmeasurements is quite different, in that we can only measure the amount of theacid in its ionized form. You were tasked to investigate a clear aqueous solutionof an unknown monoprotic acid. You decided to use two methods togather data.Method 1 – TITRATION: A 10. mL aliquot of the sample was diluted with 25 mLdistilled water. Two drops of phenolphthalein were added and then it was titrated3.54 mL of 0.048 M standardized NaOH to the endpoint.Method 2 – pH STRIP: You took 1 mL of the sample and used a pH strip toestimate the pH, which turned out to be around 3.3. Another 1 mL of the samplewas diluted with 9 mL of water. The pH was taken again and is now around 3.8.a) Calculate the molarity of the acid using the titration data.b) If we assume that the titrated unknown is a strong acid, predict thepH of the sample.c) Using pH strip results,…
5. a) The Kw value that we normally use is for room temperature (25°C). Calculate the equilibrium H+ concentration and pH of pure, neutral water at 0.0°C (Kw= 1.14 x 10-15at 0.0°C) b) Methylamine (CH3NH2) is a derivative of the weak base ammonia. Write the equation for the ionization of methylamine in water, and use the I.C.E. method to find the pH of a 3.75 M CH3NH2 solution.(Kb= 4.37 x 10-4at 25°C)
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been diluted 10,000 times. A basic solution of luminol is often sprayed onto surfaces that are suspected of containing minute amounts of blood. Luminol has a molecular weight of 177 g/mol The technician must dilute the luminol solution to a concentration of 5.00×10−2 M . The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray?
The chemical 5-amino-2,3-dihydro-1,4- phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been diluted 10,000 times. A basic solution of luminol is often sprayed onto surfaces that are suspected of containing minute amounts of blood. Luminol has a molecular weight of 177 g/mol. The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0 g of luminol into a total volume of 75.0 mL of H₂O. What is the molarity of the stock solution of luminol? Express your answer with the appropriate units. ► View Available Hint(s) molarity of luminol solution = 1.28 M Submit Correct Part B Previous Answers Before investigating the scene, the technician must dilute the luminol solution to a concentration of 4.00 × 10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many…
100 mL of 0.10 M NH3 (Kb = 1.8 x 10-5) are mixed with 100 mL of 0.10 M HCN (Ka = 4.9 × 10-10). Which statement is true? (3) The resulting solution is neutral O (2) The resulting solution is basic O (4) No answer is correct as not enough information is given. O (1) The resulting solution is acidic E D Moving to the next question prevents changes to this answer. 4 R F % S T G 6. & 7 H C 8 00 K M Question 2 of 37
A solution has a pH of 4.5. What would be the color of the solution if each of the following indicators were added? (See the figure below.) pH 10 11 12 13 Bromphenol Blue Methyl Orange Bromcresol Green Methyl Red Alizarin Bromthymol Blue Phenol Red o-Cresolphthalein Phenolphthalein The pH ranges shown are approximate. Specific transition ranges depend on the indicator solvent chosen. a. bromphenol blue Oyellow green blue O red O colorless b. bromthymol blue Oyellow O green O blue O red O olorless c. bromcresol green Oyellow O green blue Ored O colorless d. o-cresolphthalein