Take the 1/100 dilution factor into consideration Molarity (M) will open the doors for you to get to mass in g. Once at M assume 1L of solution. (this will help you when converting from M to moles) You will also need to calculate the molar mass of glucose which has the formula C6H12O6 There are 5 steps in total
Take the 1/100 dilution factor into consideration Molarity (M) will open the doors for you to get to mass in g. Once at M assume 1L of solution. (this will help you when converting from M to moles) You will also need to calculate the molar mass of glucose which has the formula C6H12O6 There are 5 steps in total
Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.16QAP
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- There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels).
- The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink).
- You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar).
Glucose Concentration in mM of drink = 2.500 mM
From here, you need to convert the concentration of the drink from mM of the diluted drink into g/100mL of the undiluted drink.
Convert the experimental glucose concentration (mentioned above) from mM (millimolar) to g/100 mL.
Make sure to:
- Take the 1/100 dilution factor into consideration
- Molarity (M) will open the doors for you to get to mass in g.
- Once at M assume 1L of solution. (this will help you when converting from M to moles)
- You will also need to calculate the molar mass of glucose which has the formula C6H12O6
- There are 5 steps in total
Don't need to actually work out solution (just for context/information), just complete the task below:
Task: Write a step-by-step (at least 5 steps) procedure/guide with key words on how to carry out these calculations and find the solution needed for the above text. You can use diagrams, a table or just type the steps out. As long as the steps are clearly written and easy to follow.
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