- (11) Deduce the number of dyes in food colouring H. (iii) Suggest why food colouring F does not move during the experiment. (iv) Explain which two food colourings contain the dye that is likely to be the most soluble the solvent. (b) Determine which food colouring contains a dye with R, value closest to 0.67 Show your working. ​

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Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Which of two curves exhibits exponential growth