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Alisiya [41]
3 years ago
5

**25 POINTS**. I doubt anyone will do this but it's worth a try to ask. To do this exercise, you will need fifteen containers, f

ive large, five medium, and five small. The "large" containers should be about the size of a soda pop can. The containers do not have to be transparent but they need to be shaped so that you will be able to easily pour water from them into a graduated cylinder. You will also need at least one 100-mL graduated cylinder. Ideally, you will also have a larger and smaller cylinder to use. (If, perhaps, you are using kitchen measuring cups instead of graduated cylinders, they need to have metric markings on them. Be sure to use the metric markings!) Be sure to read the volumes at eye level and at the bottom of the meniscus.
Make a supply of colored water to use in this experiment. Colored water will make it easier to read the meniscus.
Before you start, make a chart in which to record your estimates and actual values. You will also need your phone to take a picture of the large, medium, and small containers you are using to estimate the volume of water, as well as a picture of the graduated container you are using for the actual measurement.
Fill one of the large unmarked containers with colored water, estimate the volume in milliliters (mL) and put it into your chart.
Then carefully pour it into the graduated container to measure the actual water volume. Put the measurement into your chart.
Repeat this procedure with the other four "large" containers. When you have completed this task with the large containers, move on to the medium and small containers.
For the large containers, record your estimated volumes first, then determine the actual volumes and record these figures. Include the pictures that you took. For the medium containers, record your estimated volumes first, then determine the actual volumes and record these figures. Include the pictures that you took.
For the small containers, record your estimated volumes first, then determine the actual volumes and record these figures. Include the pictures that you took.
Chemistry
1 answer:
Travka [436]3 years ago
6 0

Answer:

done not that hard

Explanation:

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Calculate the mass of a 0.297-mL sample of a liquid with a density of 0.930 g/mL.
tekilochka [14]

Answer: 0.27621 g

Explanation:

0.297 ml *0.930 g/ml=0.27621 g

8 0
1 year ago
A chemist dilutes 185 of the 3.0 M solution with water until a new volume of 750 is obtained. Calculate the new concentration
svlad2 [7]

Answer:

0.74M

Explanation:

Step 1 :

Data obtained from the question.

Initial concentration (C1) = 3M

Initial volume (V2) = 185mL

Final volume (V2) = 750mL

Final concentration (C2) =..?

Step 2:

Determination of the new concentration of the solution.

The new concentration of the solution can be obtained by using the dilution formula as shown below:

C1V1 = C2V2

3 x 185 = C2 x 750

Divide both side by 750

C2 = 3 x 185 / 750

C2 = 0.74M

Therefore, the new concentration of the solution is 0.74M

7 0
3 years ago
Which planetary body was opportunity designed to explore?
11111nata11111 [884]
The rover was designed to explore A.Mars
3 0
3 years ago
Question 3 (1 point)
Hoochie [10]

Answer:

50 mol

Explanation:

Mass of methane = 800 g

Number of moles of CO₂ produced = ?

Solution:

Chemical equation:

CH₄ + 2O₂      →      CO₂ + 2H₂O

Number of moles of methane:

Number of moles = mass/molar mass

Number of moles = 800 g/ 16 g/mol

Number of moles = 50 mol

Now we will compare the moles of methane and carbon dioxide from balanced chemical equation.

                CH₄        :         CO₂

                   1           :          1

                 50          :        50

4 0
3 years ago
Why do nitrogen and oxygen form negative ions, not positive ones, in simple binary compounds.
gavmur [86]

Answer:

it is easier for them to have an octet of electrons(8e)

Each ion will: obtain the noble gas structure, each atom has high ionization energy

Explanation:

.

5 0
2 years ago
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