Finding mass of glucose in standard solutions

[DespicableMe]

Homework Statement

This is for an experiment that separates sugars in a sample using TLC.
We are given a glucose standard solution with a concentration of 1mg/ml as well as 3 standard sugar solutions (glucose, fructose and maltose) all with the same concentration (10mg/ml) in 10% v/v isopropanol)

We are asked to find μg of glucose (reducing sugar) in each of the standards.

Homework Equations

I don't think there are any equations, just conversions.

The Attempt at a Solution

Convert the mg/ml to μg/ml or to μg/μl
But I'm not sure if I'm overthinking it or if it's the way the question is worded because it's worth only 1 mark.

 

[Borek]

Hard to say anything not knowing how the question is worded. From your description it can be anything and everything.

 

[DespicableMe]

We're given a juice sample and we use thin layer chromatography to identify the sugars in there. They gave us the concentrations of the standard sugar solutions and we were asked to find the μg of glucose (the reducing sugar) in each of the standards. They said to refer to the glucose concentration given to us which was 1 mg/ml. The concentration of the standards were 10 mg/ml though.

 

[Borek]

From what you wrote there is no glucose in the other standard solutions.

 

[DeeNos]

As a scientist, the first step would be to understand the objective of the experiment and the materials provided. In this case, the objective is to separate sugars in a sample using TLC and the materials provided are a glucose standard solution and 3 other standard sugar solutions with the same concentration in isopropanol.

To find the mass of glucose in each standard solution, we can use the equation: mass = concentration x volume. In this case, the concentration is given in mg/ml, so we will need to convert it to μg/ml or μg/μl depending on the desired unit. This can be done by multiplying the given concentration by 1000 (since 1 mg = 1000 μg).

Once we have the concentration in the desired unit, we can then multiply it by the volume of the standard solution provided. This will give us the mass of glucose in each standard solution.

For example, to find the mass of glucose in the glucose standard solution (1mg/ml), we would first convert the concentration to μg/ml by multiplying it by 1000, giving us 1000 μg/ml. Then, if we are given a volume of 1 ml of the standard solution, we would multiply 1000 μg/ml by 1 ml to get a mass of 1000 μg of glucose in the glucose standard solution.

It is important to pay attention to the units and conversions in order to accurately calculate the mass of glucose in each standard solution.