0
The choice is minimal for pH value that high:
- 1,3,5, trinitrobenzene: colorless 12.0 <-> 14.0 orange
- alizerineYellow-R : fine yellow 10.1 <--> 12.0 blueish violet
- (thymolphtalein pH values: colorless 9.3 <-> 10.5 blue)
Wiki User
∙ 14y ago
Phenolphthalein is commonly used as an indicator for solutions with a pH of around 12. It changes from colorless to pink in the presence of bases.
Wiki User
∙ 6y agoExamples are: neutral red, naphtolphthalein, cresol red, phenol red, bromothymol blue.
Add your answer:
Earn +20 pts
Phenolphthalein solution is used as an indicator of acids and bases. If added to an ammonia-based solution of window cleaner we would expect the solution to turn?
Phenolphthalein will turn pink or magenta in basic solutions and remain colorless in acidic solutions. Therefore, if added to an ammonia-based solution of window cleaner, which is basic, we would expect the solution to turn pink or magenta.
How are universal indicators useful to scientist?
Universal indicators are useful to scientists because they can quickly determine the pH of a solution by observing a color change. This helps in identifying whether a solution is acidic, neutral, or basic without the need for a pH meter. They can be especially helpful in qualitative analysis and in quick assessment of the acidity or alkalinity of a solution.
How long does it take to get results from a water indicator?
Results from a water indicator test can typically be obtained within a few minutes to an hour, depending on the specific test being used. The time frame may vary based on the specific indicator being tested for and the testing method employed.
How much water should be mixed to 12ml of alcohol to obtain a 12 percent of alcohol solution?
To obtain a 12% alcohol solution, you would need to mix 12ml of alcohol with 48ml of water. This would give you a total volume of 60ml, with 12% of it being alcohol.
What is the difference between liquid chlorine for pools and for drinking water?
Liquid chlorine for pools is typically a higher concentration solution (10-12%) used for disinfecting swimming pools. Liquid chlorine for drinking water is a lower concentration solution (around 0.8-1.0%) used to disinfect and purify drinking water. It is important to use the correct type of liquid chlorine for each application to ensure effective and safe water treatment.
How many gallons of a 12 percent indicator solution must be mixed with a 20 percent indicator solution to get 10 gallons of a 14 percent solution?
Let x represent the amount of 12% solution and (10-x) represent the amount of 20% solution. The equation to solve is: 0.12x + 0.20(10-x) = 0.14(10). Solving for x gives x = 4, so you need 4 gallons of the 12% solution and 6 gallons of the 20% solution to make 10 gallons of the 14% solution.
How do you make a pH indicator not using red cabbage?
One alternative to using red cabbage for a pH indicator is to use turmeric powder. Simply mix a small amount of turmeric powder with water to create a yellow solution. This solution will turn red in acidic conditions and green in basic conditions.
Can you make 6 percent peroxide using 12 percent peroxide?
No, you cannot make a 6% peroxide solution by diluting a 12% peroxide solution with water. To make a 6% peroxide solution, you would need to mix equal parts of the 12% peroxide solution with water.
What colour is it when you put universal indicator into pure water?
Water is the main neutral* solution. The colour would be green and is 7 on the pH scale.** *Neutral - A term indicating that a substance is neither acidic nor alkaline. (pH7) ** pH Scale - scale which usually runs from 0 to 14 and measures the acidity or alkalinity of a solution. Ross Atkinson 9Y @ LGS (12) AND HIS BUDDY: Mostyn Davies @ KFA (11)
Is a water solution of pH 12 dangerous to the skin?
yes
Is clay in water a solution?
Anaceli Solis L0ve Jose Sanchez12/12/11 Best relationship
Who would you prepare 2.6L of a 1200 solution given 12 percent solution sterile water?
pharmacist
How are universal indicators useful to scientist?
Universal indicators are useful to scientists because they can quickly determine the pH of a solution by observing a color change. This helps in identifying whether a solution is acidic, neutral, or basic without the need for a pH meter. They can be especially helpful in qualitative analysis and in quick assessment of the acidity or alkalinity of a solution.
Phenolphthalein solution is used as an indicator of acids and bases. If added to an ammonia-based solution of window cleaner we would expect the solution to turn?
Phenolphthalein will turn pink or magenta in basic solutions and remain colorless in acidic solutions. Therefore, if added to an ammonia-based solution of window cleaner, which is basic, we would expect the solution to turn pink or magenta.
How long does it take to get results from a water indicator?
Results from a water indicator test can typically be obtained within a few minutes to an hour, depending on the specific test being used. The time frame may vary based on the specific indicator being tested for and the testing method employed.
If a 12 percent brine solution was mixed with a 16 percent brine solution obtaining 40ml of a 15 percent brine solution how much of the 12 percent brine solution was used in the mixture?
Let x be the amount of 12% solution used. Then, since the total volume of the resulting solution is 40ml, the amount of 16% solution used would be 40-x ml. Setting up the equation (0.12)x + (0.16)(40-x) = (0.15)(40), you can find that x = 20 ml of the 12% brine solution was used in the mixture.
How much water must be added to 12 grams of a 90 percent iodine solution to produce a 25 percent iodine solution?
12*(90%)=10.8=X*.25 10.8/.25=X=43.2 43.2-12=31.2 31.2 grams of water must be added
