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Brrunno [24]
3 years ago
12

An expression is show below. - 1 2/3 - x

Chemistry
1 answer:
natka813 [3]3 years ago
4 0

Answer:

What’s the answer ‍♀️

Explanation:

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what is the molecular formula if the emperical formula C2H5 and the molcuar molar mass is 58.14 g/mol0​
Ivanshal [37]

Answer:

C4H10

Explanation:

Remark

Every periodic table is different. I'm going to use approximate numbers.

Emperical Formula Mass

2C   =   2 * 12 =  24

H5   =   5     1       5

Emperical Formula Mass = 29

Solution

To get the molecular Molar Mass, you use

Molecular Molar Mass = number of mol of each constituent * empirical molar mass

Molecular mass = 58.14 rounded to 58

empirical mass =  29

moles = constitutent = ?

58 = 29 * mols constituent     Divide by 29

2 = moles constituent

Answer

(C2H5)_2

C4H10

7 0
3 years ago
Cyclohexane (C6H12) undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane (CH3C5H9) according
serious [3.7K]

Answer:

The reaction will shift leftwards, towards the formation of more cyclohexane at 25 °C

Explanation:

Hello,

In this case, for the given chemical reaction, we can write the law of mass action (equilibrium expression) as shown below:

Kc=\frac{[CH_3C_5H_9]}{[C_6H_{12} ]}

Thus, since Kc < 1, we can conclude there are more moles of cyclohexane at equilibrium (denominator is greater than numerator), therefore, the reaction will shift leftwards, towards the formation of more cyclohexane at 25 °C.

Best regards.

3 0
3 years ago
You dissolve NH&amp;CN in water. Will the resulting solution be acidic or basic? You need to explain your answer using the appro
Advocard [28]

NH₄CN is a salt formed from weak base NH₄OH and weak acid HCN so that it undergoes complete hydrolysis

<h3>Further explanation</h3>

The hydrolysis process is a term used for the reaction of substances with water

There are 3 types of hydrolysis salts

1.Salt from strong acids and strong bases does not undergo hydrolysis so that the pH of the neutral solution = 7

2.Salt from strong acids and weak bases (pH <7) or from strong bases and weak acids (pH> 7) will be partially / partially hydrolyzed

3.Salt from weak acids and weak bases (pH depends on the value of Ka and Kb) will be completely hydrolyzed

NH₄CN is a salt formed from weak base NH₄OH and weak acid HCN so that it undergoes complete hydrolysis

NH₄OH + HCN⇒NH₄CN+H₂O

Can be formulated :

\tt [H^+]=\sqrt{\dfrac{Kw\times Ka}{Kb} }

Ka> Kb then [H +]> 7 and pH <7 ⇒ acidic

Ka <Kb then [H +] <7 or pH> 7 ⇒alkaline

Ka = Kb then pH = 7 ⇒neutral

3 0
3 years ago
What do the two tails of a comet consist of ?
djyliett [7]
There are two<span> types of </span>comet tails<span>: dust and gas ion. A dust </span>tail<span> contains small, solid particles that are about the same size found in cigarette smoke. This </span>tail<span> forms because sunlight pushes on these small particles, gently shoving them away from the </span>comet's<span> nucleus.</span>
3 0
3 years ago
Read 2 more answers
CO2−3 Draw the molecule by placing atoms on the canvas and connecting them with bonds. Include all lone pairs of electrons. C C
ivolga24 [154]

Carbon dioxide (CO₂) it is a molecule with liniar geometry in which the carbon atom is bonded to oxygen atoms by double bonds. Each oxygen will have two lone pairs a electrons that are not involved in the chemical bonds.

Chemical diagram with the lone pairs represented, is found in the attached picture.

4 0
3 years ago
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