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rewona [7]
4 years ago
13

What acids in alcohol make it evaporate

Chemistry
1 answer:
fgiga [73]4 years ago
6 0

The acids found in alcohol that make it evaporate are called organic acids.

An organic acid is an organic compound that has acidic properties. There are two types: one has a carboxyl (COOH) group, and the other type has a phenol group.

The most common organic acids are those with a carboxyl group and include acetic acid, formic acid, lactic acid and all fatty acids.  Perfumes  include organic acid in their composition to make them volatile. Volatile substances evaporate easily, and this is important for perfumes. They need to dissipate easily into the surrounding environment and spread their good smell. 




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The molarity of a solution containing 7.1 g of sodium sulfate in 100 mL of an aqueous solution is
Sergio [31]

Answer:

0.5 M

Explanation:

First we have to start with the <u>molarity equation</u>:

M=\frac{mol}{L}

We need to know the<u> amount of moles and the litters</u>.

If we have 100 mL we can convert this value to “L”, so:

100~mL\frac{1~L}{1000~mL}

0.1~ L

Now we can continue with the moles, for this we have to know the <u>formula of sodium sulfate</u> Na_2SO_4, with this formula we can <u>calculate the molar mass</u> if we know the atomic mass of each atom on the formula (Na: 23 g/mol, S: 32 g/mol, O: 16 g/mol). We have to multiply each atomic mass by the amount of atoms in the formula, so:

molar~ mass~=~ (23*2)+(32*1)+(16*4)= ~ 142~ g/mol

In other words:

1~mol~ Na_2SO_4=~142~g~ of~Na_2SO_4

Now we can <u>calculate the moles</u>:

7.1~g~ of~Na_2SO_4\frac{1~mol~ Na_2SO_4}{142~g~ of~Na_2SO_4}

0.05~mol~ Na_2SO_4

Finally, we can <u>calculate the molarity:</u>

M=\frac{0.05~mol~ Na_2SO_4 }{0.1~ L}

M=0.5

I hope it helps!

4 0
3 years ago
Read 2 more answers
Why would a scientist method of data collection change based on where they conduct their experiment?
serious [3.7K]

Answer: scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis.

Explanation:

When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.

8 0
3 years ago
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.0 L of sol
dlinn [17]

Answer: below is the calculation for Ka

Explanation:

Download pdf
7 0
3 years ago
Air contains nitrogen, oxygen, argon, and trace gases. Ifthe partial pressure of nitrogen is 592 mm Hg, oxygen is160 mm Hg, argo
Katena32 [7]

Answer:

760 mmHg

Explanation:

Step 1: Given data

  • Partial pressure of nitrogen (pN₂): 592 mmHg
  • Partial pressure of oxygen (pO₂): 160 mmHg
  • Partial pressure of argon (pAr): 7 mmHg
  • Partial pressure of the trace gas (pt): 1 mmHg

Step 2: Calculate the atmospheric pressure

Since air is a gaseous mixture, the atmospheric pressure is equal to the sum of the gases that compose it.

P = pN₂ + pO₂ + pAr + pt = 592 mmHg + 160 mmHg + 7 mmHg + 1 mmHg = 760 mmHg

6 0
3 years ago
Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points. K2SO4 NH4I CoCl3
katrin [286]
The substance that releases the greatest amount of ions will have the greatest attractive forces within its solution, resulting in a reduced freezing point.
K₂SO₄ yields 3 ions
NH₄I yields 2 ions
CoCl₃ yields 4 ions

Freezing points:
CoCl₃ < K₂SO₄ < NH₄I
8 0
3 years ago
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