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Svetllana [295]
3 years ago
13

A chemist has a small amount of compound ( b.p. = 65 oC) that must be fractionally distilled. Yet, the Chemist does not want to

lose any of the compound to hold up on the column. What the chemist should do?
Chemistry
1 answer:
koban [17]3 years ago
6 0

Answer:

The chemist can either:

a. Use a small fractionation apparatus.

b. Add a compound with a much higher boiling point.

Explanation:

Using a smaller fractionation apparatus or Vigreux column will help to minimize loss of the distillate.

If a compound with a higher boiling point is added, the vapors of this liquid will displace the vapors of this small amount of compound with a lower boiling point. This compound with a higher boiling point is known as a Chaser.

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The formula for binary ionic compound formed between cesium and fluorine
OleMash [197]

Answer:

Cesium fluoride(CsF)

Explanation:

A binary compound is a compound that is composed of 2 distinct element. An ionic compound is composed of ions, usually one is a metal why the other is a non metal. One element gives out electron to form cation and the other receives electron to form anion in a binary compound.

Cesium is a group 1 element and it has one valence electron and it can easily donate this 1 electron to form a bond with other element. Group 1 element are generally very reactive. Cesium is a metal

Fluorine is in  group 7 of the periodic table and is a non metal .Fluorine have 7 valency electron and requires  1 electron to form a stable octet.

When cesium and fluorine bond to form a binary compound cesium donate 1 electron and fluorine receives the 1 electron for both element to form a stable octet. The formula for the binary ionic compound of cesium and fluorine can therefore be expressed as Cesium fluoride(CsF)

7 0
3 years ago
Cerebrospinal fluid of the central nervous system and synovial fluid of joint capsules are both examples of _______.
murzikaleks [220]

Cerebrospinal fluid of the central nervous system and synovial fluid of joint capsules are both examples of <u>extracellular </u><u>fluid</u>

  • Extracellular fluid called cerebrospinal fluid is present throughout the CNS
  • It acts as a protective layer for CNS ftom injury and shock
  • Cerebrospinal fluid is clear, colorless fluid produced by the choroid plexus.
  • It surrounds the brain and spinal cord.

Synovial fluid is a viscous solution found in cavities of synovial joints. The principal role of synovial fluid is to reduce friction between articular cartilages of synovial joints during movement.

  • Synovial fluid is a small component of transcellular fluid component of extracellular fluid.

learn more extracellular fluid at

brainly.com/question/14445684

#SPJ4

3 0
1 year ago
How do scientific models help us teach students about systems?
kotegsom [21]

D)By increasing or decreasing the size of systems that are difficult to study we make it easier for students to see how they work and therefore make it easier for them to learn.

Explanation:

Scientific models makes it easier to teach students about systems because their sizes can be adjusted and this makes it easier for students to see how they work.

A model is a simplification of the real work. It takes a part of the real world and studies it.

Models are highly desired in teaching and understanding very complex systems.

  • Since a tutor owns the control of the model, they can make adjustments on them to a scale that is convenient to work with.
  • Also, a part of a system can be studied one at a time making it simple for students to comprehend.

learn more:

Models brainly.com/question/1858613

#learnwithBrainly

4 0
3 years ago
Given the atomic mass of select elements, calculate the molar mass of each salt.
arlik [135]

Answer:

See explanation

Explanation:

Molar mass is obtained as the sum of relative atomic masses as follow;

For CaBr = 40.08 + 79.90 = 119.98 g/mol

For BeBr =  9.012 + 79.90 = 88.912 g/mol

For CdBr2 = 112.41 + 2(79.90) = 272.21 g/mol

For CuBr2 = 63.55 + 2(79.90) = 223.35 g/mol

3 0
3 years ago
Frrrreeeeeee point freeeeee
ahrayia [7]

Answer:

Ok the answer is 345

Explanation:

7 0
2 years ago
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