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What is the partition coefficient of benzoic acid in water and benzene if 250mg of benzoic acid is dissolved in 50ml water and 50ml benzene?
Wiki User
∙ 12y ago
Using the formula : K= compound per ml of organic solvent/ compound per ml of water.
You have 4 mg left in the aqueous layer, hence, 31 mg in the organic layer. Converting mg to g you have: (.031g / 5ml) / (.004g/ 10ml) = 15.5.
Wiki User
∙ 14y ago
To find the partition coefficient, we first calculate the concentrations of benzoic acid in water and benzene. In water, the concentration is 250 mg/50 ml = 5 mg/ml. In benzene, the concentration is also 250 mg/50 ml = 5 mg/ml. The partition coefficient is then the concentration in benzene divided by the concentration in water, which is 5 mg/ml / 5 mg/ml = 1.
Wiki User
∙ 12y agonormality of BA in water / square root of normality of BA in benzene = 0.028 to 0.035
square root of normality of BA in benzene /normality of BA in water = 32 to 39
Wiki User
∙ 11y ago(4mg/10ml)/(31mg/5ml) = .0645 = Kp
Wiki User
∙ 12y agoj
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To make a saturated solution of benzoic acid using benzene as the solvent how much is need of each?
The solubility of benzoic acid in benzene is about 65 g per 100 mL at room temperature. To make a saturated solution, you would need to add 65 g of benzoic acid to every 100 mL of benzene. Keep in mind that this is dependent on the temperature and may vary.
Why does benzoic acid form a dimer in benzene and not in water?
Benzene is a non polar solvent with low dielectric constant, whereas water is a polar solvent with high dielectric constant. So water can reduce the interaction between benzoic acid molecules there by preventing them from dimerizing, which cannot be done by benzene
Is benzene the same as benzoate?
No. Bensene and Benzoate are not the same. Benzene has the formula C6H6 (a ring of 6 carbons, each with a hydrogen bonded to it), and benzoate has the formula C6H5COO−. Benzoate is a benzene molecule that has a carboxylic acid group attached to it (except that the acid group is deprotonated). Benzoate is the conjugate base of benzoic acid. See the Web Links to the left of this answer for more information.
How do you convert benzene to toluene?
Benzene can be converted to toluene by methylating benzene with methyl chloride or methyl alcohol using a Friedel-Crafts alkylation reaction. This reaction is typically catalyzed by a Lewis acid such as aluminum chloride.
Prepare O-nitrotoluene from benzene and show reactions involved?
O-Nitrotoluene can be prepared from benzene via a multistep reaction process. First, benzene is nitrated to form nitrobenzene using a mixture of nitric acid and sulfuric acid. Next, nitrobenzene is methylated to form o-nitrotoluene by reacting it with methyl iodide in the presence of a base like sodium hydroxide. The final product is then separated and purified using appropriate techniques.
How do you determine the partition coefficient of benzoic acid between benzene and water?
To determine the partition coefficient of benzoic acid between benzene and water, you would first measure the concentrations of benzoic acid in each solvent layer after equilibrium is reached. Then, calculate the partition coefficient by dividing the concentration of benzoic acid in benzene by the concentration in water at equilibrium. This ratio represents how the compound distributes between the two solvents.
How can you distinguish between benzoic acid and benzene?
Benzoic acid will give brisk effervescence on reacting with sodium bicarbonate.
What is oxidation of benzene?
Oxidation of benzene involves the addition of oxygen or removal of hydrogen from benzene molecules. This process typically leads to the formation of products with more oxygen-containing functional groups, such as phenol or benzoic acid. Oxidation of benzene can be catalyzed by various reagents or conditions, such as nitric acid or metal catalysts.
To make a saturated solution of benzoic acid using benzene as the solvent how much is need of each?
The solubility of benzoic acid in benzene is about 65 g per 100 mL at room temperature. To make a saturated solution, you would need to add 65 g of benzoic acid to every 100 mL of benzene. Keep in mind that this is dependent on the temperature and may vary.
How do you detect benzene in the Grignard synthesis of benzoic acid?
Not sure what you mean... If you mean 'how is benzene used for the Grignard synthesis of Benzoic Acid,' then the answer is, bromobenzene (C6H5Br) is turned into phenyl Grignard (C6H5MgBr) by the addition of Magnesium in ether, and then dry ice (solid CO2) is added to the reaction mixture to make Benzoate (C6H5COO-), which is the conjugate base of Benzoic Acid. That has got to help you somehow.
How does the structure of salicylic acid differ from that of benzoic acid?
Salicylic acid has a hydroxyl group (-OH) attached to the benzene ring, while benzoic acid has a carboxylic acid group (-COOH) attached to the benzene ring. This difference results in salicylic acid being a phenol derivative and having different chemical properties compared to benzoic acid.
Effect hot solution containing dissolved benzoic acid immediately placed ice bath?
Cooling the hot solution containing dissolved benzoic acid in an ice bath will cause the benzoic acid to crystallize out of solution due to the decrease in temperature. This rapid cooling process helps to promote the formation of pure benzoic acid crystals and allows for easier separation from the solution.
Is benzoic acid an organic or inorganic compound?
Benzoic acid is an organic compound as it contains carbon-hydrogen bonds. It is derived from the benzene ring structure and is commonly used as a food preservative.
Is benzoic acid soluble?
Benzoic acid is soluble in water, as are all acids, by definition. An acid is a chemical which, when dissolved in water, increases the concentration of H+ ions.
What is the functional groups of benzoic acid?
The functional group of benzoic acid is a carboxylic acid group, which consists of a carbonyl group (C=O) and a hydroxyl group (OH) attached to a benzene ring. This gives benzoic acid its acidic properties.
In the laboratory a student named Georgia weighed 5.35 grams of an unknown solid mixture containing benzoic acid copper II sulfate and sand she added 15 ml of acetone to her sample which dissolved?
The benzoic acid in the mixture dissolved in the acetone because it is soluble in acetone. Copper (II) sulfate does not dissolve in acetone like benzoic acid does. The sand in the mixture does not dissolve in acetone as it is insoluble.
Is benzoic acid inorganic or organic?
Any molecule containing carbon that is NOT either carbon monoxide, carbon dioxide, or any allotrope of elemental carbon is considered to be organic. Seeing as benzoic acid is a carboxylic acid created by a benzene ring, it most definetely is organic
