Question

This was a analysis questioned asked on my lab report ? I need help, I included part C on there and the whole procedure of how it works. Will you please help me how to determine the concentration in a concentration % ?

Heres the question:

4. For the 10 mixtures that were created in Part C: Classification of Mixtures procedure, determine the concentration in
a concentration % (m/m, v/v, or m/v). Include a unit with your value and a brief explanation as to why that unit was the
best representation for the concentration. (Note: Density H20 = 1.00 g/mL) ?

Heres Part C:

Part C: Classification of Mixtures

Table 6.2

Test Tube Mixtures

1. Obtain 10 large test tubes and label them with the numbers 1–10.

2. Add 15 mL of distilled water to a small beaker and heat on a hot plate.

3. In the 10 test tubes, make the mixtures in Table 6.2.

Tube #	Volume (mL) of Water	Solute
1	10.00	0.50 g powdered chalk
2	10.00	0.50 g sucrose
3	5.00	5.00 mL whole milk
4	5.00	5.00 mL liquid starch
5	5.00	5.00 mL ethanol
6	7.50	2.50 mL vegetable oil
7	10.00	0.10 g borax
8	10.00	3 drops food coloring
9	10.00	0.50 g soil
10	10.00*	0.20 g gelatin
* Water for this tube needs to be boiling hot; use the water that was being heated in Step 2.

4.Using a glass stirring rod, mix the contents of each tube thoroughly.

5. Observe the general appearance of each tube. Does the mixture appear to be transparent, translucent, or opaque? Are the particles distinguishable from one another? Record these observations in the data table.

6.Record which of the 10 test tubes have contents that settle after standing.

7.In a darkened box or darkened area of the room, shine a flashlight through each sample. Note what happens to the beam of light as it passes through the sample. Record the results in Table 6: Comparison of Mixtures on the Solutions, Colloids, and Suspensions Lab Worksheet.

8.Obtain a funnel, ring stand, ring clamp, filter paper, and a small beaker.

9.Fold the filter paper into a cone and place it in the funnel (see Figure 6.6). Pour the mixture from Test Tube 1 into the funnel. Note if there are particles from the mixture that are trapped by the filter paper. Record these observations in Table 6: Comparison of Mixtures on the Solutions, Colloids, and Suspensions Lab Worksheet. Repeat this process for the mixtures in Test Tubes 2–9.

Answer 1

Test tube #1:

The concentration in m/m = 0.5 g chalk powder/10 g water = 0.05 g/G, Where g is gram for denoting the solute and G is gram for denoting the solvent

The concentration in m/v = 0.5 g chalk powder/10 mL water = 0.05 g/mL

Test tube #2:

The concentration in m/m = 0.5 g sucrose/10 g water = 0.05 g/G

The concentration in m/v = 0.5 g sucrose/10 mL water = 0.05 g/mL

Test tube #3:

The concentration in v/v = 5 mL whole milk/5 mL water = 1 ml/ML

Test tube #4:

The concentration in v/v = 5 mL liquid starch/5 mL water = 1 ml/ML

Test tube #5:

The concentration in v/v = 5 mL ethanol/5 mL water = 1 ml/ML

Test tube #6:

The concentration in v/v = 2.5 mL vegetable oil/7.5 mL water = 0.33 ml/ML

Test tube #7:

The concentration in m/m = 0.1 g borax/10 g water = 0.01 g/G, Where g is gram for denoting the solute and G is gram for denoting the solvent

The concentration in m/v = 0.1 g chalk powder/10 mL water = 0.01 g/mL

Test tube #9:

The concentration in m/m = 0.5 g soil/10 g water = 0.05 g/G, Where g is gram for denoting the solute and G is gram for denoting the solvent

The concentration in m/v = 0.5 g soil/10 mL water = 0.05 g/mL

Test tube #10:

The concentration in m/m = 0.2 g gelatin/10 g water = 0.02 g/G, Where g is gram for denoting the solute and G is gram for denoting the solvent

The concentration in m/v = 0.2 g gelatin/10 mL water = 0.02 g/mL