A student placed 12.5 of glucose (C6H12O6) in a 100ml volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the calibration mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 50.0ml sample of this glucose solution was diluted to 0.500L . How many grams of glucose are in 100ml. of the final solution?

I see you added the units of volume, as Bob Pursley suggested; however, you omitted the units for the glucose. If that was 12.5 g glucose the was originally weighed, then the final solution is

(12.5/100)*(50/500)*100
Check my thinking.

To calculate the grams of glucose in 100ml of the final solution, we need to first determine the concentration of the glucose solution after it has been diluted.

Given:
- 12.5g of glucose was placed in a 100ml volumetric flask.
- The 50.0ml sample of the glucose solution was diluted to 0.500L.

Step 1: Calculate the concentration of glucose in the original 100ml solution.
The concentration (C1) can be calculated using the formula:

C1 = (mass of solute) / (volume of solution)

C1 = 12.5g / 100ml

C1 = 0.125 g/ml

Step 2: Calculate the concentration of the final solution after dilution.
The concentration of the final solution (C2) can be calculated using the formula:

C2 = (C1)(V1) / V2

Where:
- C1 is the initial concentration of the solution.
- V1 is the initial volume of the solution.
- V2 is the final volume of the solution after dilution.

C2 = (0.125 g/ml)(50ml) / 500ml

C2 = 0.0125 g/ml

Step 3: Calculate the grams of glucose in 100ml of the final solution.
The amount of glucose in 100ml of the final solution can be calculated using the formula:

grams of glucose = (concentration of glucose) x (volume of solution)

grams of glucose = 0.0125 g/ml x 100 ml

grams of glucose = 1.25 grams

Therefore, there are 1.25 grams of glucose in 100ml of the final solution.

To find the number of grams of glucose in 100ml of the final solution, we need to use the information given. Let's break down the problem step by step.

Step 1: Find the concentration of the glucose solution.
The concentrated glucose solution is prepared by dissolving 12.5 grams of glucose in a 100ml volumetric flask. Therefore, the concentration can be calculated as follows:

Concentration = Mass of solute (glucose) / Volume of solution

Concentration = 12.5g / 100ml

Step 2: Convert the concentration to g/L.
To use the concentration in further calculations, we need to convert it to grams per liter (g/L). We know that there are 1000ml in 1L, so we can multiply the concentration by a factor of 10 to obtain the concentration in g/L:

Concentration = (12.5g / 100ml) x (1000ml / 1L)

Concentration = 125g/L

Step 3: Calculate the mass of glucose in the final solution.
We are given that a 50.0ml sample of the glucose solution is diluted to a total volume of 0.500L. Using the concentration (125g/L) calculated in the previous step, we can calculate the mass of glucose in the final solution.

Mass of glucose = Concentration x Volume of solution

Mass of glucose = 125g/L x 0.500L

Mass of glucose = 62.5g

Step 4: Find the mass of glucose in 100ml of the final solution.
Since we have found the mass of glucose in the final 0.500L solution, we can now calculate the mass in 100ml:

Mass in 100ml = (Mass of glucose / Volume of solution) x 100ml

Mass in 100ml = (62.5g / 0.500L) x 100ml

Mass in 100ml = 125g

Therefore, there are 125 grams of glucose in 100ml of the final solution.