All categories

3 years ago

Air is a solution and a mixture of gases, what is the solvent in the solution we call air?

Chemistry

1 answer:

MariettaO [177]3 years ago

8 0

Answer:

c. nitrogen gas

Explanation:

Our air is a homogeneous mixture of many different gases and therefore qualifies as a solution. Approximately 78% of the atmosphere is nitrogen, making it the solvent for this solution.

You might be interested in

What is the overall reaction for lactic acid fermentation?

Delicious77 [7]

Breakdown of energy rich molecules without oxygen present. In human muscles, it is the same equation wise as lactic acid fermentation.

7 0

3 years ago

What happens to cabbage indicator when in clear soda. Why?

yaroslaw [1]

Answer:

The experiment report is a detailed discussion of the methodology followed in the experiment.How to write summary of experiment resultsAfter carrying out a laboratory experiment it is often expedient to write a summary of the experiment usually for the purpose of assessment by the instructor.Such reports begin with the title of the experiment followed by the material used in the experiment. Next comes the procedure of the experiment where all the details of the experiment are spelt out in detail.Lastly, you can now write the conclusion and the results obtained from the experiment in the last paragraph of the report.

Explanation:

7 0

2 years ago

What happens when bonds are broken?

gogolik [260]

Answer:

hi Adavaith is it okay for the

Explanation:

using computer

6 0

3 years ago

The expression below was formed by combining different gas laws. V is proportional to StartFraction n T over P EndFraction. Whic

Ronch [10]

Answer:

The Ideal gas law

Explanation:

From the given question, we have:

V $\alpha$ $\frac{nT}{P}$

where each variable has its usual meaning.

Thus,

V = $\frac{nRT}{P}$

where R is the ideal gas constant

cross multiply to have;

PV = nRT

This implies that the volume of the gas is directly proportional to the number of moles of the gas.

Therefore, the law can be used to determine the relationship between the volume and number of moles is the ideal gas law.

3 0

3 years ago

A solution is made by dissolving 4.35 g of glucose (C6H1206) in 25.0 mL of water at 25 °C.Calculate the molality of glucose in t

Roman55 [17]

Answer:

The molality is unchanged (0.96 molal)

Explanation:

Step 1: Data given

mass of glucose = 4.35 grams

volume of water = 25.0 mL

Density of water = 1.00 g/mL

Molar mass of glucose = 180.156 g/mol

Step 2: Calculate number of moles

moles of glucose = mass of glucose / Molar mass of glucose

moles of glucose = 4.35 grams / 180.156 g/mol

moles of glucose = 0.024 moles

Step 3: Calculate mass of water

mass = density * volume

mass of water = 1.00 g/mL * 25.0 mL

mass of water = 25 g = 0.025 kg

Step 4: Calculate molality

molality = Number of moles / mass of water

molality = 0.024 moles / 0.025 kg

molality = 0.96 molal

Suppose you take a solution and add more solvent, so that the original mass of solvent is doubled.

This means double mass of water = 2*0.025 kg = 0.050 kg

Now molality is 0.024 moles / 0.050 kg = 0.48 molal

When the mass of solvent is doubled, the molality is halved from 0.96 molal to 0.48 molal

You take this newsolution and add more solute, so that the original mass of the solute is doubled.

This means double mass of glucose = 2*4.35 g = 8.70 g

8.70 grams of glucose = 8.7 grams * 180.156 g/mol = 0.048 moles

molality = 0.048 moles / 0.050 kg = 0.96 molal

The molality is unchanged

5 0

4 years ago