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3 years ago

Identify the molecules with a dipole moment: (a) SF (b) CF (c) CCCB (d) CHCI (e) H.CO

Chemistry

1 answer:

trapecia [35]3 years ago

6 0

Answer: An atom has either tendency of accepting or losing electron, on the basis of this virtue it is named as

Electronegative: An atom has tendency to attract the shared pair of electron towards itself is called electronegative.

Electropositive: An atom that has tendency to give the shared pair of electron towards an electronegative atom is called electropositive.

For the existence of dipole within a molecule there must be a difference in electronegativity of the atoms participating in it. All the molecules here have dipole moment because the atoms participating in them have a difference in electronegative.

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Which statement below correctly describes how amino acids join?

Shtirlitz [24]

Answer:

Amino acids join by linking the acid group of one amino acid to the amino group of another.

Explanation:

Amino acids are organic molecules that form the basic molecules for making proteins and there are. An amino acid comprises of an acidic carboxyl (-COOH) functional group and an amino group (-NH2) as well as a side an organic side chain (R group).

In the formation of proteins, several amino acids join together by the formation of peptide bonds between each amino acids to form a long polypeptide. These peptide bods are formed by the linking of the acidic carboxyl group of one amino acid to the amino group of another amino acid, during this process water is removed.

6 0

3 years ago

A 151.6-g sample of a metal at 75.3°C is added to 151.6 g at 15.6°C. The temperature of the water rises to 18.9°C. Calculate the

denis-greek [22]

Answer:

4.60 J/°C g

Explanation:

This a simple calorimetry excersise. If all the heat, which is lost by the metal, is gained by the water, we assume that

Q from water = Q from metal

Q = m . C . ΔT

where C is heat capacity and ΔT, the differences between the temperatures. Let's determine the heat gained by water.

Q = 151.6 g . 4.18 J /°C g . (18.9°C - 15.6°C)

Q (+) = 2091 Joules

As this heat, was gained by the water, this heat was lost by the metal (-)

- 2091 Joules = 151.6 g . C . (Final T° - 75.3°C)

We do not know at what T° was the meta, by the end, but all the heat was gained from the water, as water was increased by 3°C, metal decreases -3°C

- 2091 Joules = 151.6 g . C . - 3°C

-2091 J / -3°C . 151.6g = 4.60 J/°C g

5 0

3 years ago

The reaction described in part a required 3.77 l of magnesium chloride. what is the concentration of this magnesium chloride sol

katrin [286]

Assuming you are talking about the atomic mass of magnesium chloride
M = n/V
M = 1/3.77
M = .265

6 0

3 years ago

Which is not a strong electrolyte

Allushta [10]

Here N H 4 O H { NH }_{ 4 }OH NH4OH is not a strong electrolyte because it doesn't dissociates completely.

3 0

3 years ago

Read 2 more answers

-1.42, 3, 32.5%, √4, 2³, −0.375, 3/8 as a decimal least to greatest

nignag [31]

Answer:

-1.42, -0.375, 32.5% (.325), 3/8 (.375), √4 (2.0), 3 (3.0), 2³ (8.0)

8 0

1 year ago