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3 years ago

Which molecule is polar, based on structure?

Chemistry

2 answers:

madam [21]3 years ago

6 0

the answer is A sulfur dioxide ..........................

Ket [755]3 years ago

3 0

Answer: Sulphur Dioxide

Explanation: Polarity of the molecule is basically based on -

a) Electro negativity of the individual atoms

b) Structure of the molecule as change will dipole moment or asymmetric structure will lead to the polar molecule.

Sulfur Dioxide has bent structure with 2 lone pairs and 2 bond pairs. . Thus the molecule is polar

Carbon disulfide has linear structure. Thus there will be no change in dipole moment in the structure thus in non polar.

Ethylene molecule is the most linear molecule thus cannot be polar.

Carbon Tetra chloride is in shape of Tetrahedron thus it is also non polar as no net change in dipole moment can be seen.

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3 years ago

What is the mass number of an ion with 106 electrons, 158 neutrons, and a +1 charge?

Effectus [21]

The mass number would be 265

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4 years ago

Read 2 more answers

Which of the following elements would form the smallest ionic radius and why?

AnnyKZ [126]

Answer:

Sodium

Explanation:

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3 years ago

Brainliest will be given to correct answer :)

Lady_Fox [76]

Answer: $\Delta G$ for the reaction is -90kJ

Explanation:

The balanced chemical reaction is,

$2H_2S(g)+SO_2(g)\rightarrow 3S_{rhombic}(s)+2H_2O(g)$

The expression for Gibbs free energy change is,

$\Delta G=[n\times G_{products}]-[n\times G_{reactants}]$

Putting the values we get :

$\Delta G=[3\times G_f{S,rhombic}+2\times G_f{H_2O}]-[2\times G_f{H_2S}+1\times G_f{SO_2}]$

$\Delta G=[(3\times 0kJ/mol)+(2\times -229kJ/mol)]-[(2\times -34kJ/mol) +(1\times -300kJ/mol)]$

$\Delta G=-90kJ$

Thus $\Delta G$ for the reaction $2H_2S(g)+SO_2(g)\rightarrow 3S_{rhombic}(s)+2H_2O(g)$ is -90kJ

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3 years ago

The following is a list of common errors encountered in research laboratories. Categorize each as a determinate or an indetermin

Kay [80]

Answer:

An unknown being weighed is hygroscopic. - operative error

One component of a mixture being analyzed quantitatively by gas chromatography reacts with the column packing. - methodic error

The tip of the pipet used in the analysis is broken. - instrumental error

In measuring the same peak heights of a chromatogram, two technicians each report different heights - operative error

Explanation:

In chemical analysis, operative errors are that largely introduced into the measurement because of variation of personal judgements of analysts. It is also a personal error that emanates solely due to the analyst.

A methodic error arises as a result of adopting defective experimental methods. For example, a column packing that reacts with a component of the mixture is used in the gas chromatography.

Instrument error refers to the error of a measuring instrument, for instance, the use of a pipette with a broken tip.

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3 years ago