0
What else can I help you with?
How do you identify a unknown white powder?
Thomas, but his friends just call him Tom.
Is it advisable to use just one type of indicator to determine the nature of an unknown solution?
No; every test must be confirmed by another test.
Is the Benedict's solution test qualitative?
Benedicts solution changes through a range of colours (blue, green, orange, red) according to how much reducing sugar is present in the sample. This can be used to give a rough answer to the question "How much sugar is in the sample?", but is not accurate enough (because of the blending between one colour and the next), to be called a quantitative test.
How would you test an unknown solutions for protein?
The biuret test is a chemical test used for detecting the presence of peptide bonds. In the presence of peptides, a copper(II) ion forms violet-colored coordination complexes in an alkaline solution.[1] Several variants on the test have been developed.The Biuret reaction can be used to assay the concentration of proteins because peptide bonds occur with the same frequency per amino acid in the peptide. The intensity of the color, and hence the absorption at 540 nm, is directly proportional to the protein concentration, according to the Beer-Lambert law.
What are the risks of testing unknown solutions and how might you manage these risks?
any unknown solution may be poisinous , highly acidic that may burn ur tongue etc. hence without verification of any soln it is dangerous to taste it directly. their are many ways of tasting the properties of soln like litmus test, hydrogen test , ph test, metal test.. etc thanx
How do you carry out quantitative test method for Widal test?
That is a good question! The answer is simple. You do step by step dilution of the serum with probably normal (isotonic) saline solution and test the same for Widal test. This is how you do quantitative test for many other tests also.
What are the Quantitative tests?
quantitative test is test where it determine the quantity of substance in expereiment
Why is Benedict's test a semi quantitative test?
Benedict solution is considered as a Simi quantitative test because of it's change in colour range depending to the number of reducing sugar in the sample being tested ,this can be use to determine the amount of reducing sugars but never totally conclusive
How do you identify a unknown white powder?
Thomas, but his friends just call him Tom.
What are the step in quantitative analysis?
Define problem, develop model, optain data, develop solution, solve equtions, test solution, analize results, implement results and change if necessary
Is it advisable to use just one type of indicator to determine the nature of an unknown solution?
No; every test must be confirmed by another test.
Why is the MPN test qualitative rather than quantitative?
The interest is in getting quality information. This is instead of having a lot of information like other studies might do.
Difference between quantitative and qualitative test?
Qualitative test represents the substance and a quantitative test shows the amount.First Deals with descriptions, second one with numbers
How would you test an unknown solution for each of the following sugar fat starch protein?
Sugars - Benedict's solution Fats - Brown Paper Starch - Iodine Protein - Biuret Solution
Why is Benedicts test considered to be a semi-quantitative test rather than quantitative test?
Benedict's test is considered semi-quantitative because it gives a general idea of the amount of reducing sugar present based on color changes, but it is not precise enough to give an exact concentration of sugar present. The test relies on color changes to estimate the relative amount of reducing sugar, making it qualitative and semi-quantitative rather than fully quantitative.
Is a flame test a qualitative or quantitative test?
The flame test in analytical chemistry is only qualitative.
You are given an unknown solution and asked to determine if it is an acid or base You test the solution with a piece of litmus paper You notice the litmus paper turns blue in color This tells you t?
The solution is a base. ( If it turned red, then the solution would be classified as an acid.)
