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posledela
2 years ago
8

Functional groups create ____________ sites in molecules. The polar part of a molecule that can hydrogen bond to water is said b

e ____________ . Pi (π) bonds create ____________ sites and will react with electron-deficient species. A electronegative heteroatom like nitrogen, oxygen, or a halogen makes a carbon atom ____________ . The nonpolar part of a molecule that is not attracted to water is said to be ____________ . A lone pair on a heteroatom makes it basic and ____________ .
Chemistry
1 answer:
zhenek [66]2 years ago
5 0

Functional groups create reactive sites in molecules.

The polar part of a molecule that can hydrogen bond to water is said be hydrophilic.

Pi (π) bonds create active sites and will react with electron-deficient species.

A electronegative heteroatom like nitrogen, oxygen, or a halogen makes a carbon atom electrophilic.

(carbon will have less electronic density, which is attracted by the more electronegative heretoatoms, and it will tend to attract electron rich chemical species, and in this situation we say that the carbon atom is electrophilic).

The nonpolar part of a molecule that is not attracted to water is said to be hydrophobic.

A lone pair on a heteroatom makes it basic and nucleophilic.

(the heteroatom with the lone pair will tend to attract electron poor chemical species, and in this situation we say that the heteroatom is nucleophilic).

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2 years ago
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Carbon monoxide and molecular oxygen react to form carbon dioxide. A 50.0 L reactor at 25.0 oC is charged with 1.00 bar of CO. T
Umnica [9.8K]

Answer:

CO = zero

CO2 =1 bar

O2  = 2.02 bar

Explanation:

We are given

initial pressure of CO = 1bar

total pressure = 3.52 bar

so initial pressure of O2 = 3.52 - 1 = 2.52 bar

the reaction is

2CO + O2 →  2CO2

using the unitary method

2 moles of CO2 → 1 mole of O2

1  bar of CO → \frac{1}{2} * 1= 0.5 bar (required)

but we have more oxygen present , that means CO is the limiting reagent

  • Final pressure of CO will be zero as it is the limiting reagent so it will be consumed completely
  • 1 bar of CO → \frac{2mol CO2}{2mol CO} * 1= 1 bar of CO2
  • 2.52 bar O2 (initially) - 0.5 bar (reacted) = 2.02bar O2
6 0
2 years ago
What mass (g) of barium iodide is contained in 188 ml of a barium iodide solution that has an iodide ion concentration of 0.532m
Katarina [22]

Answer:

What mass (g) of barium iodide is contained in 188 mL of a barium iodide solution that has an iodide ion concentration of 0.532 M?

A) 19.6

B) 39.1

C) 19,600

D) 39,100

E) 276

The correct answer to the question is

B) 39.1  grams

Explanation:

To solve the question

The molarity ratio is given by

188 ml of 0.532 M solution of iodide.

Therefore we have number of moles = 0.188 × 0.532 M = 0.100016 Moles

To find the mass, we note that the Number of moles = \frac{Mass}{Molar Mass} from which we have

Mass = Number of moles × molar mass

Where the molar mass of Barium Iodide = 391.136 g/mol

= 0.100016 moles ×391.136 g/mol = 39.12 g

8 0
2 years ago
Write down the dissolution equation for rubidium chromate dissolving in water. (Chromate is a polyatomic ion with the formula Cr
ycow [4]

Answer:

Four moles of the cation

Explanation:

2Rb2CrO4(s)<--------> 4Rb^+(aq) + 2CrO4^2-(aq)

Now looking at the reaction equation, it can be seen that one mole of rubidium chromate contains two moles of rubidium ions and one mole of chromate ions.

The dissolution of two moles of rubidium chromate should then yield four moles of rubidium ions and two moles of chromate ions since the ratio of ions present is 2:1.

This explains the reaction equation written above for the dissolution of two moles of rubidium chromate as shown.

5 0
2 years ago
When you tapped the stick on one end of the tape, did you see a wave that
rusak2 [61]

Answer:

Yes.

Explanation:

Yes, I did see a wave that formed and rolled down the line because of tapping the stick on one end of the tape. The wave that had been created goes from one side of the tape to the other end of the tape. This movement occur in the tape due to the disturbance at one end of the tape so we can say that wave formed in the tape and rolled down the line.

7 0
2 years ago
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