0
Well, there's no error as such. It simply shows that there is a lower concentration of reducing sugars as opposed to brick red.
The colour change for Benedict's solution goes like this:
Blue -> Green -> Yellow -> Orange -> Red
Blue shows NO reducing sugars at all. The intermediate colours show varying concentrations of reducing sugars. Red is the highest concentration!
So, if it's coming up as yellow, there's no mistake- it's just that there's an intermediate amount of reducing sugars present in the solution.
It is possible to turn the solution brick red.
Repeat the experiment the exact same way as before- but this time, increase the concentration and amount of reducing sugars present. A brick-red precipitate should form!
Hope this helps. (:
What else can I help you with?
What colour does pH paper change to if sodium bicarbonate is added?
pH paper would change from red to yellow when sodium bicarbonate is added because sodium bicarbonate is a base and would increase the pH of the solution.
When a solution of substance X is added to a solution of potassium iodide then a yellow solid is separated out from the solution .what can be substance X?
The yellow solid separated out is likely to be elemental iodine (I2). When substance X is added to potassium iodide solution, a redox reaction occurs leading to the formation of iodine, which appears as a yellow solid.
What will happen to the color of sodium bicarbonate if phenol red is add?
If phenol red is added to sodium bicarbonate, the color of the solution will change based on the pH. In an acidic solution, phenol red will appear yellow, in a neutral solution it will be red, and in an alkaline solution (such as when sodium bicarbonate is added), it will turn a pink or magenta color.
Why Na2CO3 is added to solution before Benedicts test is performed?
Na2CO3 is added to the solution before the Benedict's test to create an alkaline environment, which helps to stabilize the blue copper (II) ions in the Benedict's reagent. This stabilization is important for the detection of reducing sugars, as the copper (II) ions must be reduced to form a red precipitate in the presence of reducing sugars.
Carbon dioxide is passed into a solution of bromthymol blue indicator until the acid solution turns yellow A sprig of elodea is placed into yellow solution and it turns blue purpose of experiment is?
The purpose of the experiment is to demonstrate the process of photosynthesis. When the elodea plant is added to the yellow solution (indicating acidity), it will consume carbon dioxide and release oxygen through photosynthesis. This will cause a color change in the solution from yellow to blue as the pH increases due to the removal of carbon dioxide.
Why is sodium carbonate added to solution before Benedicts test is performed?
Sodium carbonate is added to increase the pH of the solution.
What is the effect of sugar solution on turmeric solution?
when sugar solution is added to turmeric solution , it turns yellow.
Why sugar solution stays yellow in a turmeric indicator?
Turmeric contains a compound called curcumin which changes color from yellow to red in acidic solutions. When added to a sugar solution, which is neutral, the turmeric indicator remains yellow because the pH of the solution is not acidic enough to induce the color change in curcumin.
What colour does pH paper change to if sodium bicarbonate is added?
pH paper would change from red to yellow when sodium bicarbonate is added because sodium bicarbonate is a base and would increase the pH of the solution.
When a solution of substance X is added to a solution of potassium iodide then a yellow solid is separated out from the solution .what can be substance X?
The yellow solid separated out is likely to be elemental iodine (I2). When substance X is added to potassium iodide solution, a redox reaction occurs leading to the formation of iodine, which appears as a yellow solid.
What will happen to the color of sodium bicarbonate if phenol red is add?
If phenol red is added to sodium bicarbonate, the color of the solution will change based on the pH. In an acidic solution, phenol red will appear yellow, in a neutral solution it will be red, and in an alkaline solution (such as when sodium bicarbonate is added), it will turn a pink or magenta color.
Describe a solution that contains a buffer?
Acetic acid is added to the solution, but the pH of the solution does not change. Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
What is the colour change when onion solution is added to acids and bases?
When onion solution, which contains anthocyanins, is added to acids, it typically turns a reddish color due to the lower pH. In contrast, when mixed with bases, the solution changes to a greenish-yellow hue as the pH increases. This color change is a result of the pH-sensitive nature of the anthocyanins present in the onion.
Is this a chemical change or physical change silver nitrate solution is added to another solution producing a white solid?
it is a chemical change
What best describes a buffer?
A buffer is a substance in a solution that releases and captures hydrogen ions, keeping the pH the same.Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not changeA buffer resists change in pH by accepting hydrogen ions when acids are added to the solution and donating hydrogen ions when bases are added.
Why Na2CO3 is added to solution before Benedicts test is performed?
Na2CO3 is added to the solution before the Benedict's test to create an alkaline environment, which helps to stabilize the blue copper (II) ions in the Benedict's reagent. This stabilization is important for the detection of reducing sugars, as the copper (II) ions must be reduced to form a red precipitate in the presence of reducing sugars.
Carbon dioxide is passed into a solution of bromthymol blue indicator until the acid solution turns yellow A sprig of elodea is placed into yellow solution and it turns blue purpose of experiment is?
The purpose of the experiment is to demonstrate the process of photosynthesis. When the elodea plant is added to the yellow solution (indicating acidity), it will consume carbon dioxide and release oxygen through photosynthesis. This will cause a color change in the solution from yellow to blue as the pH increases due to the removal of carbon dioxide.
