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sergij07 [2.7K]
3 years ago
7

In a robinson annulation, an α,-unsaturated carbonyl compound reacts with a carbonyl compound to afford a (new) cyclic α,-unsa

turated ketone by a michael–aldol–dehydration sequence. draw the structure of the reactants that would combine to form the a ring of the steroid desoxy-19-nortestosterone (below) by a robinson annulation.

Chemistry
1 answer:
Marina CMI [18]3 years ago
4 0
Robinson Annulation reaction is mainly done for the synthesis of six membered rings. This reaction is the combination of two reactions 1). Michael Addition Reaction and 2). Aldole Condensation.

The synthesis of <span>desoxy-19-nortestosterone by Robinson Annulation is shown below,</span>

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Rank the following substances in order from most soluble in water to least soluble in water: ethane, C2H6; 2-butanol, C4H9OH; po
stealth61 [152]

Answer:

Potassium chloride > Butanol >Propane > Ethane

Explanation:

Water is a polar solvent and it is likely to dissolve polar molecules.

KCl is ionic in nature and is completely polar and the solubility of the salt, potassium chloride is the highest.

Butanol can form hydrogen bonding with the water despite having a carbon chain. Thus, butanol will be at second.

Taking about, ethane and propane, both are non polar and least likely to dissolve in water. But, the extent of the London forces increases with the increase in the molecular weight. So, propane will dissolve faster than ethane.

The order is:

Potassium chloride > Butanol >Propane > Ethane

8 0
3 years ago
Can you use molecular orbital theory to explain why fluorine is such a highly reactive gas?
vivado [14]
The F2 molecular orbital diagram shows 4e- are in the highest energy antibonding (destabilizing) molecular orbitals resulting in a bond order = 1.

Single bonds are easier to break and therefore more reactive. So the answer is yes.
7 0
3 years ago
Need help with this question
hichkok12 [17]
What question? Lhh this is hilarious.
4 0
3 years ago
How to solve x² in differential​
g100num [7]

Answer:

x² = mutiphy by them self

Explanation:

4 0
3 years ago
What mass of oxygen is needed to burn 4g of hydrogen, given the equation below
aleksandrvk [35]

32g of oxygen is required to burn 4g of hydrogen.

Define molecular mass.

A specific molecule's mass is expressed in daltons and is known as the molecular mass (m) (Da or u). Due to the varying isotopes of an element that they contain, multiple molecules of the same substance can have distinct molecular weights.

The total atomic mass of every atom in a molecule, calculated using a scale with hydrogen, carbon, nitrogen, and oxygen having atomic masses of 1, 12, 14, and 16, respectively. For instance, water has a molecular mass of 18 (2 + 16), which consists of two hydrogen atoms and one oxygen atom. known also as molecular weight.

In ,2H2+O2-----> 2H2O

H 2 molecules have a mass of 2 g/mol.

The molecular weight of oxygen is 32 g/mol.

When the chemical equation is balanced,

To totally react, 32 g of oxygen are needed for every 22=4 g of hydrogen.

To know more about molecular mass use link below:

brainly.com/question/21334167

#SPJ1

7 0
1 year ago
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