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How would the result be affected If a student places a sugar cube into one of the unknown solutions in the experiment?
From my previous lab, i'm assuming it's the same, there are 4 tests: monosaccharaide, starch, lipid, and protein.
If a sugar cube is to be placed into the unknown solution and then tested by the 4 tests, there would be NO affect:
* Note: Some will think that placing a sugar cube into the solution will change the results of the monosaccharaide test, but there won't be. Remember, the monosaccharide only tests positive in the presence of a monosaccharaide, but sucrose is a DISACCHARIDE, so there will be no affect.
As for the other tests, they are indicators of starch, lipids, and proteins, again, nothing else. Therefore, sugar has no affect on the results whatsoever.
What else can I help you with?
Which of the unknown colorless solutions are acidic?
To determine if a colorless solution is acidic, you can test its pH using a pH indicator strip or a pH meter. If the pH is below 7, the solution is acidic. Common acidic solutions include hydrochloric acid, sulfuric acid, and acetic acid.
In this experiment you compare several unknown powders to known powders. What is the name given to all of the known materials used for comparison in this experiment?
The known materials used for comparison in this experiment are typically referred to as reference standards or control samples. These known materials help in identifying and characterizing the properties of the unknown powders by comparing them to the known standards.
Why is a titration performed?
Titration is performed to determine the concentration of a substance in a solution. It involves reacting two solutions - one with a known concentration and the other with an unknown concentration - until they reach an equivalence point, allowing for the calculation of the unknown concentration.
A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing the tan liquid remains separated from the water?
The unknown tan-colored liquid may be immiscible in water, meaning it does not mix or dissolve in water. This could be due to differences in polarity or solubility between the two substances. Further testing and analysis would be needed to identify the specific properties of the unknown substance.
How can you determine the relative concentrations of solutions when the ratios of solute to solvent are not known?
One method is to use a spectrophotometer to measure the absorbance of the solutions at a specific wavelength and compare them. Another option is to conduct a visual comparison, looking for differences in color intensity or turbidity between the solutions. Additionally, you could perform a titration to determine the relative concentrations by observing the volume of a known concentration solution required to react completely with the unknown solution.
Which variable is unknown until the experiment is performed?
A responding variable
To eliminate the possibility of hidden or unknown variables the scientist must run what kind of experiment?
To eliminate the possibility of hidden or unknown variables the scientist must a control experiment.
What variable is unknown until the experiment is performed?
The independent variable is the variable that is unknown until the experiment is performed. This is the variable that is manipulated by the researcher to observe its effect on the dependent variable.
How are people affected by unfair trade?
The answer to this question is ATM unknown
Why is it inportant to control variables in a experiment?
Because if you have any unknown factors you wont know how the experiment will react in any given situation.
What is salt solutions?
A salt solution is what is commonly known as salt water.
A student studies an unknown material during a science experiment She discovers that the material is ductile and can conduct heat and electricity She can identify the substance as?
There are a quite a few answers that fit this question. Gold is very ductile and is an excellent conductor of heat and electricity.
What was special about Ivan Pavlov's experiment?
Ivan Pavlov's experiment demonstrated a significant new phenomenon, the conditioned response, that had previously been unknown to science.
Student Council?
the studdies are unknown the studdies are unknown
How do I identify relative concentrations of solutions vs cells in an experiment?
If you place the cells in the unknown solution and it shrinks/shrivels up, then the unknown solution is hypertonic. That means it has higher concentrations of permeable ions than does the cell. If the cell ruptures/bursts, then the opposite is true. In that case, the unknown solution has a lower concentration of ions (hypotonic). If nothing happens to the cell and it maintains the original morphology, then the unknown solution is isotonic and has approximately the same ionic concentration as inside the cell. These observations are based on the principle of osmosis.
Which of the unknown colorless solutions are acidic?
To determine if a colorless solution is acidic, you can test its pH using a pH indicator strip or a pH meter. If the pH is below 7, the solution is acidic. Common acidic solutions include hydrochloric acid, sulfuric acid, and acetic acid.
What is the part of an experiment that serves as the point of comparison for the results?
The 'Variable' is the difference in the experiment that acts as the unknown factor. Results are drawn based on what the Variable does. -Vanack
