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What else can I help you with?
What is wrong with how David tested his hypothesis?
David did not measure the solutions' volumes before mixing the solutions.
How can pH of a solution be tested?
By dissolving the pH solution a colour change will occur in the solution that should be tested.Compairing the colour of solution to the colours marked on of pH chart we can find out if the solution we tested is of alkaline nature or of acidic nature or neutral.Solutions of pH7are neutral solutions.Solutions below pH7 are acidic solutions and those above pH7 are alkaline solutions.
What does turmeric turns on with pH paper?
Turmeric turns red in acidic solutions and yellow in basic solutions when tested with pH paper. This color change is due to the chemical structure of turmeric and its reaction with different pH levels.
Why is the solution of universal indicator green?
Universal indicator changes color based on the pH of a substance. Green color indicates a neutral pH (around pH 7), which means the solution is neither acidic nor alkaline. The indicator turns yellow in acidic solutions and blue to violet in alkaline solutions.
What mixes many solutions to compare pH?
A pH meter can mix multiple solutions by taking small samples and measuring the pH of each. Alternatively, a pH indicator solution can be added to each solution to visually compare the color changes and identify differences in pH levels. Another option is to create a standard curve using known pH buffer solutions to compare against the solutions being tested.
How would the bulb light if you tested copper sulfate and vinegar acetic acid for conductivity?
If the bulb lights up when copper sulfate and vinegar acetic acid are tested for conductivity, it indicates that both solutions are conductive. This means that they contain ions that can carry electrical current. Conductivity in these solutions is likely due to the presence of dissolved ions from the copper sulfate and acetic acid.
What test indicator is used to detect protein?
To test for protein. Biuret or solutions of sodium hydroxide and copper sulfate. Tested with a dropper a + result will be purple or something
What is the scientific definition for independent variable?
The independent variable in any item that is changed during a scientific experiment. The dependent variable is the object being tested. In an experiment testing the buoyancy of wood in different solutions, the different solutions would be the independent variable.
How do use solutions to find the colors of the indicators?
First, identify the indicators used in the experiment. Then, prepare a set of solutions with known colors at different pH levels. Finally, compare the color change of the indicators with the color changes in the solutions to determine the pH of the solution being tested.
Sugar in blood and urine is tested with which solution?
Sugar in blood and urine is tested with Benedict's solution.
What is the best acid base indicator?
One commonly used acid-base indicator is phenolphthalein, which is colorless in acidic solutions and pink in basic solutions. Another popular indicator is litmus, which turns red in acidic solutions and blue in basic solutions. The choice of the best indicator depends on the specific experiment and the pH range being tested.
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