High School

1. How many grams of NaCl are necessary to make 1 liter of a 140 mM solution?
- The molecular weight of Na⁺ and Cl⁻ are 23 grams/mol and 35 grams/mol, respectively.

2. One 8-ounce serving of orange juice contains 24 grams of sugar. How many moles of sugar is this?
- The molecular weight of glucose is 180 grams per mol.

3. Using the amount of moles from question 2, can you estimate the effect on blood glucose concentration?
- Assume that all of the glucose is absorbed.
- Estimate total blood volume, and for this question, ignore the fact that the liver will absorb the glucose in the blood immediately after it is absorbed from the jejunum.
- How does this compare to the 'normal' blood glucose level of 100 mg/dL (or about 5 mM)?

Answer :

The effect on blood glucose concentration can be estimated by calculating the increase in glucose concentration based on the amount of glucose consumed and assuming it is fully absorbed into the bloodstream. This estimate needs to be compared to the normal blood glucose level of 100mg/dl (or about 5 mM).

To estimate the effect on blood glucose concentration, we need to calculate the number of moles of glucose consumed in question 2. Given that one 8-ounce serving of orange juice contains 24 grams of sugar and the molecular weight of glucose is 180 grams/mol, we can calculate the number of moles by dividing the mass of sugar by its molecular weight:

Moles of sugar = Mass of sugar / Molecular weight of glucose

Moles of sugar = 24 g / 180 g/mol

Moles of sugar ≈ 0.133 mol

Assuming all the glucose is absorbed into the bloodstream and ignoring liver absorption, we can estimate the effect on blood glucose concentration. However, to determine the exact effect, we need to know the total blood volume of an individual. Without this information, we cannot provide a specific estimation of the effect on blood glucose concentration.

Comparing the estimated blood glucose concentration to the normal level of 100mg/dl (or about 5mM), further analysis and calculations are required based on individual-specific factors such as total blood volume, metabolism, and glucose utilization to determine the impact on blood glucose concentration accurately.

To know more about blood glucose click here:

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