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N76 [4]
4 years ago
12

Which is a practical application of boiling-point elevation?

Chemistry
1 answer:
pishuonlain [190]4 years ago
7 0
Boiling-point is the point of a pure liquid matter starts to evaporate and change into gaseous phase. It is where the set of conditions such as the pressure and temperature enough to do so. Boiling-point elevation, on the other hand, is the phenomenon of which the boiling point of a pure liquid matter is elevated because of the dissolved substances. A great example would be the boiling point of a distilled water (pure water) which is lesser than the boiling point of a sea water because of the dissolved salts. A pure water boils at 100°C at atmospheric pressure while a salt water boils at higher temperature than 100°C at the same pressure. Thus, the answer is D.
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What is the new freezing point if you put in 100.O g of sodium chloride into 750. mL of water?
faltersainse [42]

Answer:

No idea

Explanation:

3 0
4 years ago
How do you know if something is complementary
Tju [1.3M]

When something combines the other is said to be complementary.

Explanation:

Complementary is mainly referred to as combination , that is, when one component goes along with the other. One of the day to day example of a complementary good is bread and butter because bread goes along with butter and thus it makes a good combination.

Complementary in English Grammar means to develop a link . In English Grammar complement falls under a clause. There are three type of complements such as subject complement, object complement as well as adjective complement.

5 0
3 years ago
How many atoms are in a sample of 175 grams of sodium (na)? 1.42 × 10^27 atoms 4.58 × 10^24 atoms 6.68 × 10^-21 atoms 1.26 × 10^
Alenkasestr [34]
Atomic mass Na = 22.99 u.m.a

22.99 g ------------------ 6.02x10²³ atoms
175 g -------------------- ?? atoms

175 x (6.02x10²³) / 22.99 => 4.58x10²⁴ atoms

hope this helps!
5 0
4 years ago
Chemical and physical properties for Benzoyl peroxide?
pishuonlain [190]
  1. <u>Physical Properties :</u>
  • It is a crystalline colorless solid structure it is soluble in solution such as ether, alcohol, and chloroform but insoluble in water.
  • It is dangerous when it is dry and is very volatile and decomposes when it reaches 103 c.

    2. <u>Chemical Properties :</u>

  • It causes swelling of the skin and undergoes free radical products that are highly reactive.
  • It is irritant when it contacts the skin it breaks down to yield oxygen and benzoic acid.

<u>Explanation:</u>

  • Benzoyl Peroxide is widely used in industry at large scale.
  • It is formed when there is a reaction between hydrogen peroxide and benzoyl chloride.
  • Benzoyl peroxide is used in bread and cheese as the bleaching agent and also used in cosmetics as hair coloring.  
  • Because of its antibacterial property and a peroxide group it is applied to the human skin to treat acne.

4 0
3 years ago
Which statements about β turns are correct? Their purpose is to reverse the direction of the polypeptide chain. There are two ty
zhuklara [117]

Answer:

The correct answer is - 1, 2, and 4 statements.

Explanation:

Beta and gamma turns are common plots or turns in proteins and contain intra-turn hydrogen bonds. This hydrogen bond is present between CO of residue i and NH of residue i+3 that holds the confirmation in beta turns.

Beta turns, assist the protein to get their globularity, as the aim of beta turns is to reverse the direction of the polypeptide. The two main of beta turns are type-I and type-Il. and their minor images are type-I and type-Il.

Thus, the correct answer is - 1, 2, and 4 statements.

8 0
3 years ago
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