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kodGreya [7K]
3 years ago
10

What structural feature of lecithin allows it to behave like an emulsifying agent?

Chemistry
1 answer:
stepladder [879]3 years ago
6 0
Lecithin is an emulsifier agent that's composed of 5 smaller molecules: phosphoric acid, choline, glycerol( is the backbone), and two fatty acids. 

The fatty acids, which are hydrophobic (afraid of water), makes this substance more similiar to fats and represent the non-polar part of the lecithin.
The phosphate group is the polar portion of the molecule and it's the negatively charged. The choline is positively charged, which readily dissolve in water<span>.

</span><span>Lecithin is a good emulsifier because of these structural features. the hydrophobic contacts with the oil, while the hydrophilic end contacts with the water.</span>

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Using the diagram above, answer the following questions:
Vesnalui [34]

Answer:

6. false.  

chemical energy to heat and mechanical. Mechanical that runs the factory in the photo, and Heat energy that rises up in the atmosphere to join the other carbon

molecules in the air. 7. True. The arrow letter A is the transfer of solar power

from the sun, to a chemical reaction to produce food for the plant, which is

called photosynthesis. The leaves in the plant has chlorophyll that absorbs light

energy and transforms it to food.8. The answer would be letter C and F. C because It is

during the burning of the fossil fuels that the carbon dioxide is release into

the atmosphere. When burning the fossil fuels the carbon that was inside the

fossils is released. This also happens with diesel and other forms of natural

gas. While, F is because plant

respiration releases some of the carbon remains of the photosynthesis. While

plants do absorb carbon dioxide, part of their end product also includes reformed

carbon dioxide. Most of the other processes in the phot uses carbon or absorbs

carbon dioxide to aid their sustenance.9. A carbon cycle for living things would be A or B to F

wherein the plants absorb carbon dioxide to aid their production of food, and

then releasing carbon dioxide again as a by product of their food production.

This also happen to aquatic plants.An example of a non-living carbon cycle would be, D or E to

C. This would be the absorption of the carbon on our sea waters or to our soil,

this then gets trapped in there until it is release like through the forms of

fossil fuel burning.10. The law of conservation of mass and energy states that

matter can neither be created nor destroyed, this is very much evident in the

carbon cycle. Because the carbon from the light energy from the sun, or in our

atmosphere, ends up back to our atmosphere just to continue its cycle. The fact

that the carbon cycle is a cycle not just a linear equation proves that energy

can neither be created nor destroyed.

Explanation:

8 0
3 years ago
For each of the following balanced chemical equations, calculate how many moles and how many grams of each product would be prod
anastassius [24]

Answer : The number of moles of NH_4Cl and mass of NH_4Cl is 0.50 mole and 27 grams respectively.

Solution : Given,

We are assuming that the reactant indicated in boldface is NH_3. So,

Moles of NH_3 = 0.50 mole

Molar mass of NH_4Cl = 53.5 g/mole

First we have to calculate the moles of NH_4Cl

The balanced chemical reaction is,

NH_3(g)+HCl(g)\rightarrow NH_4Cl(s)

From the reaction, we conclude that

As, 1 mole of NH_3 react to give 1 mole of NH_4Cl

So, 0.50 moles of NH_3 react to give 0.50 moles of NH_4Cl

The number of moles of NH_4Cl  is, 0.50 moles.

Now we have to calculate the mass of NH_4Cl

\text{ Mass of }NH_4Cl=\text{ Moles of }NH_4Cl\times \text{ Molar mass of }NH_4Cl

\text{ Mass of }NH_4Cl=(0.50moles)\times (53.5g/mole)=26.75g\approx 27g

The mass of NH_4Cl  is, 27 grams.

4 0
4 years ago
Why is vapor pressure higher in oil than water if water has stronger IMF’s?
Aleksandr-060686 [28]

Answer:

A liquid's vapor pressure is directly related to the intermolecular forces present between its molecules. The stronger these forces, the lower the rate of evaporation and the lower the vapor pressure.

Explanation:

4 0
3 years ago
Read 2 more answers
How many moles are in 7.2 x 10^23 carbon molecules?
choli [55]

Explanation:

It is known that in 1 mole there are 6.023 \times 10^{23} atoms or molecules.

It is given that there are 7.2 \times 10^{23} carbon molecules. Therefore, calculate the moles as follows.

     Number of moles = \frac{7.2 \times 10^{23} molecules}{6.023 \times 10^{23} molecules/mol}

                                   = 1.196 mol

Thus, we can conclude that there are 1.196 mol in 7.2 \times 10^{23} carbon molecules.

7 0
3 years ago
How many liters of a 0.50 solution are needed to give 3.5 moles of solute
sertanlavr [38]
0.50 Molar means 0.50 moles/liter
(.5 moles/liter)/3.5 moles= 1/7 Liters
3 0
3 years ago
Read 2 more answers
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