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3 years ago

Standard units of measure for density

Chemistry

1 answer:

Mrrafil [7]3 years ago

8 0

Answer:

g/cm³ for solids,

g/ml for liquids

g/L for gases.

Explanation:

Though SI unit of density is kg/m³, for convenience we use g/cm³ for solids, g/ml for liquids and g/L for gases. Mathematically, density is defined as mass divided by volume: ρ=m/V

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When of alanine are dissolved in of a certain mystery liquid , the freezing point of the solution is less than the freezing poin

vitfil [10]

Answer:

16.5 g

Explanation:

The van't Hoff factor is a relation between the ideal value of a solution's colligative properties and the observed colligative properties.

Check the attached files for detailed solution

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3 years ago

When two atoms form a covalent bond, they share electrons from all of their orbitals. All of their orbitals, in turn, combine to

erma4kov [3.2K]

Answer:

It's false.

Explanation:

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3 years ago

What is the difference between a positive and negative ion?

ra1l [238]

Positive ions or molecules that have lost one or more electrons where negative ions are actually oxygen atoms with extra negatively charged electrons.

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3 years ago

6. Give reasons.

MArishka [77]

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Explanation:

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2 years ago

Both the acetamido (-NHCOCH3) and bromo (-Br) substituents are ortho, para directors. Even though the acetamido group is much la

sweet [91]

Answer:

Explanation has been given below

Explanation:

Attachment of -Cl group at ortho position to acetamido group can be explained in terms of hydrogen bonding formation.
A hydrogen bonding can be formed between proton attached with N atom in acetamido group and Cl atom at ortho position. This leads to a formation of a stable 5-membered ring structure.
Hence ortho substitution by Cl is favorable process.
There is no hydrogen bonding possible between Br and Cl atom in ortho position. Therefore Cl prefers para position to avoid steric hindrance.
Structure of hydrogen bonded structure has been shown below.

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3 years ago