Which class of organic compound is least likely to be used as an organic solvent? aldehyde ketone alkyl halide ether

Chemistry

2 answers:

Nady [450]3 years ago

5 0

Answer:

The organic compund that is the least likely to be used as an organic solvent is:

aldehyde

Explanation:

The reason behind this is that even though aldehydes are used in the perfumery industry. They are not very good solvents because the majority of them are hazardous. Only a minimal fraction of them can be tolerated by organisms and that can even make them have weak poisoning reactions. However, using them as solvents in bigger quantities will make them hazardous for organisms considering their high concentration of ketones.

Over [174]3 years ago

3 0

i think its a

Aldehyde

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What is the change in internal energy for each of the following situations? 1. q-7.9 J out of the system and w 3.6 J done on the

adoni [48]

Answer:

A i. Internal energy ΔU = -4.3 J ii. Internal energy ΔU = -6.0 J B. The second system is lower in energy.

Explanation:

A. We know that the internal energy,ΔU = q + w where q = quantity of heat and w = work done on system.

1. In the above q = -7.9 J (the negative indicating heat loss by the system). w = 3.6 J (It is positive because work is done on the system). So, the internal energy for this system is ΔU₁ = q + w = -7.9J + 3.6J = -4.3 J

ii. From the question q = +1.5 J (the positive indicating heat into the system). w = -7.5 J (It is negative because work is done by the system). So, the internal energy for this system is ΔU₂ = q + w = +1.5J + (-7.5J) = +1.5J - 7.5J = - 6.0J

B. We know that ΔU = U₂ - U₁ where U₁ and U₂ are the initial and final internal energies of the system. Since for the systems above, the initial internal energies U₁ are the same, then we say U₁ = U. Let U₁ and U₂ now represent the final energies of both systems in A i and A ii above. So, we write ΔU₁ = U₁ - U and ΔU₂ = U₂ - U where ΔU₁ and ΔU₂ are the internal energy changes in A i and A ii respectively. Now from ΔU₁ = U₁ - U, U₁ = ΔU₁ + U and U₂ = ΔU₂ + U. Subtracting both equations U₁ - U₂ = ΔU₁ - ΔU₂

= -4.3J -(-6.0 J)= 1.7 J. Since U₁ - U₂ > 0 , U₂ < U₁ , so the second system's internal energy increase less and is lower in energy and is more stable.

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2 years ago

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Aleksandr [31]

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the balanced chemical equation for the reaction is : -

CH4 + 2 O2 =》CO2 + 2 H2O

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3 years ago

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How many moles of atoms are in 6.00 g of 13C?

Lyrx [107]

Answer: 0.462 moles

Explanation: 13C indicates an isotope of carbon and its mass number is 13. It means the mass of 1 mol of 13C is 13 gram.

The question asks to calculate the number of atoms present in 6.00 grams of 13C.

To calculate the number of moles we divide the given grams by the mass of 1 mol of the element. The set could be shown easily using dimensional analysis as:

$6.00gram(\frac{1mol}{13gram})$