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April 18, 2014

Search: Equation for reaction of benzoic acid.

Number of results: 58,646

chemistry
What mass of benzoic acid can be made from a reaction where 4.87g benzyl alcohol is combined with 300mL of bleach? The reaction is conducted in water and dichloromethane. Describe a method of separating the benzoic acid from the sodium chloride byproduct after the reaction is ...
Sunday, February 7, 2010 at 4:55pm by Linda

chemistry
What mass of benzoic acid can be made from a reaction where 4.87g benzyl alcohol is combined with 300mL of bleach? The reaction is conducted in water and dichloromethane. Describe a method of separating the benzoic acid from the sodium chloride byproduct after the reaction is ...
Monday, February 8, 2010 at 1:45am by Chad

Chemistry
acid + base = salt + water HBz + NaOH ==> NaBz + H2O NaBz + HCl ==> HBz + NaCl Benzoic acid is C6H5COOH and it is the right most H that is involved in the reaction. I have let Bz stand for C6H5COO. The idea behind this is that benzoic acid reacts with NaOH to produce the...
Monday, February 8, 2010 at 9:31pm by DrBob222

Chemistry
First, you write the equation. PhCOOH + NaOH ==> PhCOONa + H2O So you used 20 mL of 0.5 mole/L which means you used 0.50 x 0.02 = 0.01 mole NaOH. Since the reaction is a 1:1 mole ratio, it will require 0.01 mole benzoic acid. How many grams is 0.01 mole benzoic acid? You ...
Wednesday, January 13, 2010 at 8:52pm by DrBob222

Chemistry
Please help !!!! The acid impurity in your unknown was benzoic acid. a) Write an equation for the reaction that occurs during the NaOH extraction. b) Write an equation for the reaction that occurs after the addition of HCL. Thanks.
Monday, February 8, 2010 at 9:31pm by Amanda

Chemistry
The HH equation is the Henderson-Hasselbalch equation. pH = pKa + log[(base)/(acid)] The base is benzoate ion. The acid is benzoic acid. pKa is pKa for benzoic acid. Post your work if you get stuck.
Wednesday, May 5, 2010 at 8:14pm by DrBob222

organic chemistry
breifly describe how you would separate a mixture of sand and benzoic acid(benzoic acid is soluble in hot water) to obtain pure benzoic acid
Saturday, September 15, 2007 at 3:07pm by dee

Chemistry
Benzoic acid and quinine are dissolved in a solution of dichloromethane. (benzoic acid pKa = 4.2; quinine pKa = 8.5) a) Besides the normal neutral forms for benzoic acid and quinine, will there be any other chemical form(s) present in the dichloromethane solution? a) What ...
Thursday, September 5, 2013 at 4:16am by Jemma

Chem
I am having the following problem: I need to calculate 2 Keq values based on the experiment that I conducted. I reacted 0.082 moles of benzoic acid with 0.618 moles of methanol and obtained 0.055 moles of methyl benzoate. When I calculate the first Keq based on the following ...
Thursday, April 16, 2009 at 5:50pm by Sara

Chemistry
Which of the two, benzoic acid and sucrose, has the largest heat of combustion and why? Can you look up the heats of combustion. I found -3226.9 kJ/mol for benzoic acid and -5637 kJ/mol for sucrose but you should look for yourself and confirm those numbers. Write the combusion...
Monday, March 26, 2007 at 5:32pm by Amy

chemistry
A 0.25 mol/L solution of benzoic acid, KC7H5O2 and antiseptic also used as a food preservative, has a pH of 2.40. Calculate the Ka of benzoic acid at SATP How does the benzoic acid ionization go?
Sunday, April 6, 2008 at 10:50pm by Sarah

Chem
With straight H3O^+ there is no reaction with benzoic acid. It shifts the equilibrium of the benzoic acid to the left but that's all. C6H5COOH + H2O ==> H3O^+ + C6H5COO^-
Thursday, February 7, 2013 at 12:15pm by DrBob222

Chemistry
Enough water is added to 0.35 g of benzoic acid to make 1000 mL of solution. What is the pH? Ionization Constant for Benzoic Acid Ka = 6.5 × 10–5 Molar Mass Benzoic Acid 122. g·mol–1 (A) 1.9 (B) 2.6 (C) 3.4 (D) 4.2
Tuesday, April 15, 2008 at 12:29am by LT

chemistry
What you may mean is to ask if crude benzoic acid has a higher or lower melting point than recrystallized benzoic acid. The purer benzoic acid has a higher melting point than impure benzoic acid.
Thursday, July 21, 2011 at 12:58am by DrBob222

Chemistry
Benzoic acid is a solid. Nitrobenzene is a liquid; therefore, mols benzoic acid is 12.2 g/molar mass benzoic acid. The solvent is nitrobenzene and you have 0.250 kg.
Monday, October 27, 2008 at 12:02am by DrBob222

AP CHEM
Asirin (acetyl salicylic acid)is formed when salicylic acid reacts with acetic acid in a strong acid medium.This reaction converts the hydroxyl group on the salicylic acid to an ester while the benzoic acid group on the salicylic acid survives the reaction. Therefore, the ...
Friday, April 5, 2013 at 2:58pm by Anthony

Chemistry
I know that benzaldehyde decomposes into benzoic acid and benzyl alcohol via Cannizzaro Reaction.. But, can benzyl alcohol go through a Cannizzaro Reaction to form benzaldehyde and benzoic acid?
Friday, April 30, 2010 at 12:08am by Sarah

chemistry
I see, Sir Eng, that you are back on the same kick. But that's good if you don't understand it. Here's the deal. With the iron, you ADDED heat from an outside source to the iron. The iron ABSORBED the heat which makes q + for the iron portion of the reaction. But conditions ...
Wednesday, March 10, 2010 at 2:09am by DrBob222

Chemistry
The solubility of compounds containing the carboxylic acid group can be increased by reaction with a) sulfuric acid b) nitric acid c) sodium hydroxide d) water e) benzoic acid
Sunday, March 21, 2010 at 8:27pm by Kristin

chemistry
Write the equation and balance it. Convert 4.87 benzyl alcohol to moles. moles = grams/molar mass. Using the coefficients in the balanced equation (I think it is 1:1 but you can tell from the balanced equation you wrote), convert moles benzyl alcohol to moles of the product, ...
Monday, February 8, 2010 at 1:45am by DrBob222

chemistry
A student performed the nitration of Benzoic Acid. She/he started with 7.2 g of starting material and obtained 4.8 g of product. Assuming Benzoic Acid is the limiting reagent; calculate the theoretical and percent yields. Show the equation and all steps of your calculations.
Wednesday, January 18, 2012 at 12:25pm by marisol

Chemistry
The combustion reaction for benzoic acid C6H5CO2H(s) + 15 2 O2(g) → 7 CO2(g) + 3 H2O(ℓ) has ∆H0 = −3226.7 kJ/mole. Use Hess’s Law to calculate ∆H0 f for benzoic acid.
Sunday, October 7, 2012 at 7:43pm by Austin

chem
Forty-two grams of benzoic acid is treated with concentrated nitric acid in some sulfuric acid. Forty-two grams of the major expected organic product is isolated. What is the percentage yield for this experiment? Give an equation with structural formulas for the major reaction...
Monday, August 6, 2007 at 10:20pm by Damon

Chemistry
If you are looking for percent recovery benzoic acid as a percent of the original sample it is (0.05/0.2)*100 = 25% but that may not be percent recovery of the benzoic acid since you don't know how much benzoic acid was in the sample initially. If you can assume the fluorenone...
Friday, October 25, 2013 at 4:09am by DrBob222

Chemistry
Assume the solubility of benzoic acid in ice-cold water is 1.70 g/L and the solubility of benzoic acid in hot water is 68.0 g/L. Calculate the minimum volume of water (in mL) needed to recrystallize 0.950 g of benzoic acid.
Sunday, August 12, 2012 at 12:44am by Jen

Chemistry
Assume the solubility of benzoic acid in ice-cold water is 1.70 g/L and the solubility of benzoic acid in hot water is 68.0 g/L. Calculate the minimum volume of water (in mL) needed to recrystallize 0.350 g of benzoic acid.
Wednesday, January 30, 2013 at 5:24am by Anonymous

Science
Separation scheme for isolating benzoic acid Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard reagent phenylmagnesium bromide with dry ice (CO2) in ether? Thanks!
Friday, October 22, 2010 at 3:57pm by Jessica

Chemistry
You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three 50 ml extractions ...
Monday, November 22, 2010 at 8:11am by Nat

Chemistry
You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three 50 ml extractions ...
Monday, November 22, 2010 at 8:53pm by Nat

Organic Chemistry
Separation scheme for isolating benzoic acid Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard reagent phenylmagnesium bromide with dry ice (CO2) in ether? Thanks!
Friday, October 22, 2010 at 3:58pm by Jessica

organic chemistry
write a balanced equation for the reaction of benzoic acid with 3 M sodium hydroxide solution
Wednesday, May 27, 2009 at 10:36pm by cindy

Organic Chemistry
An impure sample contains 0.95g of benzoic acid and 0.05 of salicylic acid. Solubilities in water of the two compounds are given in the following table. Solubility at 20 degrees (g/10mL) benzoic acid: 0.029 salicylic acid: 0.22 Solubility at 100 degrees (g/10mL) benzoic acid: ...
Sunday, September 18, 2011 at 3:03pm by Anonymous

chem
If 20.5 mL of a 5.256 M solution of benzoic acid is used in an experiment similar to experiment 4, how many grams of benzoic acid is in the starting solution? (molar mass of benzoic acid = 122.12 g/mol) Be sure to pay attention to significant figures. The answers are all in ...
Monday, February 4, 2013 at 12:41am by alice

Organic Chemistry
Benzoic acid is much less soluble than salicylic acid; therefore, add enough water at the 100 C to dissolve the benzoic acid and the S. A. will take care of itself.
Tuesday, January 10, 2012 at 9:47pm by DrBob222

organic chemistry
Show the reaction equation and mechanisms of a mixture of napthalene,p-nitroaniline and benzoic acid dissolved in dichloromethane?
Thursday, December 2, 2010 at 9:50pm by Agnes

organic chemistry
Show the reaction equation and mechanisms of a mixture of napthalene,p-nitroaniline and benzoic acid dissolved in dichloromethane?
Thursday, December 2, 2010 at 9:50pm by Agnes

Chemistry
i have to separate benzoic acid from a mixture with quinine. so benzoic acid and quinine are qissolved in Ch2Cl2. i think the question is asking wether there's any other chemical forms in the mixture apart from the neutral forms for benzoic acid and quinine, but i am really ...
Tuesday, March 31, 2009 at 7:29am by Nancy

organic chemistry
I need to design a method to separate a mixture of benzoic acid and caffeine based on the results of a solubility experiment I did and Im not sure where to start. Ok, I know that the caffeine acts as a base as it was soluble in HCL and the Benzoic acid is an acid as it was ...
Wednesday, September 19, 2007 at 10:50am by AMY

Chemistry
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol.
Sunday, April 10, 2011 at 7:48pm by Nadine

Chemistry
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol
Sunday, April 10, 2011 at 7:48pm by Mike

Chemistry
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol
Sunday, April 10, 2011 at 9:36pm by Mike

chemistry
a student dissolves 0.625 g of pure benzoic acid in distilled water and titrated the resulting solution to the equivalence point using 40.8 mL of the standardized NaOH solution from Part a, assuming that benzoic acid has only one ionizable hydrogen, answer the following: ...
Friday, November 4, 2011 at 1:19am by Anonymous

Organic Chemistry
It's a stoichiometry problem. Actually, two of them. I'll do the first and leave the second for you. By the way, the lasrt one I worked almost completely for you BECAUSE I wanted to print it out (with the solution) and put in a notebook I keep. I think benzoic acid is C6H5COOH...
Tuesday, May 18, 2010 at 1:25pm by DrBob222

Chem
.240g Benzoic acid is dissolved in water at 100C and crystals of it formed when cooled to 20C that weighed .172g. What is the percent recovery (given solubility of benzoic acid at 20C is 2.9mg/mL) I understand the %recovery equation, but am not sure how to set up the ...
Wednesday, January 30, 2013 at 11:25pm by JaJa

Chem
Calculate mols benzoic acid used. Convert delta H/mol to delta H/mols benzoic acid used. I'll call that q. 1365 J/C x Y degrees = q. Solve for Y. Don't forget to keep the units straight. The calorimeter constant is given in J/C while the benzoic acid delta H is in kJ/mol.
Sunday, October 12, 2008 at 7:00pm by DrBob222

Chemistry
Benzoic acid (C6H5COOH)is a monoprotic weak acid with Ka=6.30*10^-5. What is the pH of a solution of benzoic acid that is 0.559M and has 2.25*10^-2M NaOH added?
Tuesday, May 8, 2012 at 4:51pm by Pippi

chemistry
reaction of benzoic acid with propylamine. if there no reaction why
Saturday, April 20, 2013 at 2:35am by felice

Chemistry
The pH of a 0.002 50 mol/L solution of benzoic acid is 3.65. Calculate the Ka for benzoic acid.
Tuesday, December 20, 2011 at 4:42pm by Maria

chemistry
Benzoic acid and quinine are dissolved in a solution of dichloromethane. Besides the normal neutral forms for benzoic acid and quinine, will there be any other chemical form(s) present in the dichloromethane solution? (benzoic acid pKa = 4.2; quinine pKa = 8.5)
Sunday, August 22, 2010 at 7:07am by Kay

Chemistry
The solubility of compounds containing the carboxylic acid group can be increased by reaction with a) sulfuric acid b) nitric acid c) sodium hydroxide d) water e) benzoic acid Would it be sodium hydroxide since it is a base?
Sunday, March 21, 2010 at 9:21pm by Kristin

Orgo - recrytalization
180mg of crude benzoic acid was recrystallized in an appropriate solvent, with a percent recovery of 67%. How much benzoic acid was recovered?
Monday, September 27, 2010 at 5:56pm by Julia

chemistry
A 0.25 mol/L solution of benzoic acid, KC7H5O2 and antiseptic also used as a food preservative, has a pH of 2.40. Calculate the Ka of benzoic acid at SATP
Saturday, April 5, 2008 at 6:42pm by Geroge B.

Chemistry
Calculate the pH of a buffer solution that contains 0.23 M benzoic acid (C6H5CO2H) and 0.28 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Please help?
Monday, March 21, 2011 at 12:40am by Adrianna

General Chemistry 1412 inorganic
Find the pH of a solution that is 0.30 M benzoic acid (HBz) and 0.25 M sodium benzoate(NaBz). Ka for benzoic acid = 6.5 x 10-5
Wednesday, April 18, 2012 at 9:33pm by generalchem1412

Organic Chemistry
How do I write a balanced equation for the synthesis of benzoic acid using the grignard reagent. To make the grignard reagent I used 0.5g of Mg, 2 ml of ether, and 3.9g of bromobenze. then to make the benzoic acid I used CO2 and H3O+. I will really appreciate if anyone can ...
Friday, February 10, 2012 at 3:59pm by lidia

Chemistry
Thanks! I see what I did wrong. I used moles instead of molarity for part a... although I am still uncertain why I should use benzoic acid as the acid in part b? I thought the reaction was C6H5COOH + KOH ==> C6H5COO- + K + H2O ... and that I should use the acid and base (...
Thursday, October 4, 2012 at 3:09am by Zell

Organic Chemistry
An impure sample contains 0.95g of benzoic acid and 0.05 of salicylic acid. Solubilities in water of the two compounds are given in the following table. Solubility at 20 degrees (g/10mL) benzoic acid: 0.029 salicylic acid: 0.22 Solubility at 100 degrees (g/10mL) benzoic acid: ...
Tuesday, January 10, 2012 at 9:47pm by Anna

ap chemistry
What is the concentration of H+ ions in a buffer solution containing 0.305 M benzoic acid (with ionization constant 6.5 × 10−5)and 0.834 M sodium benzoate (a salt of benzoic acid)?
Tuesday, February 4, 2014 at 6:56pm by gabriella

Organic Chemistry
well the compounds being used are benzoic acid, p-tertbutylphenol and p-dimethoxybenzene!! I think doing so would extract p-tertbutylphenol first and then benzoic acid because it NaOH is a strong base so it reacts with weak acid first ?? Is that correct?
Tuesday, October 25, 2011 at 10:23pm by Anonymous

Chemistry
sodium hydrogen carbonate was added so the benzoic acid would dissolve hence leaving the acetanilide and dichloroethane. the benzoic acid and the sodium hydrogen bicarbonate was separated buy adding hydrocholoric acid and then using a suction funnel therefore leaving the "pure...
Wednesday, January 23, 2013 at 6:47pm by Simone

chemistry
how to get benzoic acid from a mixture of benzoic acid and salt?
Saturday, November 14, 2009 at 7:16am by peter

chem
What does the concentration of the benzoic acid in the original liquid and the extracting liquid relate to after the extraction is completed? Answer a. The density of the original liquid. b. The density of the extracting liquid. c. The solubility of benzoic acid in each liquid...
Monday, February 4, 2013 at 12:28am by alice

Organic Chemistry
I think you should extract first with NaHCO3, which will remove the benzoic acid but not the phenol. Then extract with the NaHCO3. If you extract with NaOH first, you form a salt with both the phenol AND the benzoic acid. When you acidify the extract, both benzoic acid and the...
Tuesday, October 25, 2011 at 10:23pm by DrBob222

Organic Chemistry
I realize this is a general chemistry stoichiometry question, however I can not fully grasp it. I am supposed to calculate the theoretical amount (volume) of 3M sodium hydroxide (NaOH) needed to convert 1.5g of benzoic acid to its salt. I got 0.012 moles of bezoic acid present...
Thursday, January 20, 2011 at 10:59pm by Me

Chemistry
Given acidity constant,Ka of benzoic acid is 6.28 X 10^-5. pH of 0.15 molar solution of this acid is ? Here is my method: Benzoic acid is a weak acid,hence it dissociates very little. So: C6H5COOH---> C6H5COO- + H+ [H+] and [C6H5COO-] are yet to be calculated,so let them be...
Friday, March 23, 2012 at 12:28am by Meenaakshi

Chem
What structure do you get when you mix benzoic acid with H3O+? Where benzoic acid is a benzene ring with COOH attached to one of the hydrogens in the ring? Please help!
Thursday, February 7, 2013 at 12:15pm by Anonymous

Chemistry
This problem relies on the Henderson-Hasselbalch Equation which relates the pKa of a buffer to changes in the solution such as the addition of strong acids or strong bases. So the first thing to do in this problem is to find the pKa of benzoic acid. That can be done using a ...
Thursday, November 1, 2012 at 1:00pm by Anonymous

OCHEM
Does the mixture contain impurities as well as fluorene and benzoic acid? Do you know the solubility of fluorene and benzoic acid. Are you to assume 100% yield?
Sunday, August 12, 2012 at 12:43am by DrBob222

chemistry
Benzoic Acid (HC6H5OO, 122.0 g/mol) has a Ka = 6.3 x 10-5. What is the pH of a solution that has 3.050 g of benzoic acid in enough water to make a 0.250 L solution?
Saturday, March 31, 2012 at 9:59pm by Anonymous

Organic Chemistry - Extraction
You have 100 mL of a solution of benzoic acid in water; the amount of benzoic acid in the solution is estimated to be about 0.30 g. The distribution coefficient of benzoic acid in diethyl ether and water is approximately 10. Calculate the amount of acid that would be left in ...
Sunday, October 3, 2010 at 3:08pm by Camille

chemestry
When you lowered the pH of your combined aqueous NaOH extracts, you observed precipitation of benzoic acid. Explain what happened during this acidification and why the precipitation of benzoic acid occurred.
Wednesday, March 30, 2011 at 6:32pm by Ami

chemistry
No. 6 mg benzoic acid is not equal to 6 mg sodium benzoate. If you dissolve 6 mg sodium benzoate in acid and you can recover 100% of the product, benzoic acid, you will have 6 mg sodium benzoate x (molar mass benzoic acid/molar mass sodium benzoate) = ? which is less than 6 mg...
Tuesday, July 24, 2012 at 3:36am by DrBob222

Organic Chemistry
What is the mechanism of action between between benzoic acid (C6H5COOH) and sodium bicarbonate (NaHCO3)? I need to know where the electrons go in the acid-base reaction.
Tuesday, October 11, 2011 at 10:54pm by BOB

chemistry
The enthalpy of combustion of benzoic acid,C6H5COOH, which is often used to calibrate calorimeters, is -3227kJ/mol. When 1.236g of benzoic acid was burned in a calorimeter, the tempurature increased by 2.345K. What is the specific heat of the calorimeter?
Sunday, November 2, 2008 at 11:09pm by annemarie

university chemistry
many cola soft drinks contain caffeine and benzoic acid (pKa 4.2), explain how you would isolate separately pure caffeine and benzoic acid from an aqueous solution containing both compounds
Tuesday, March 12, 2013 at 6:24pm by angela

organic chemistry
1)Why benzoic acid is soluble in NaOH? 2)Why HCl is insoluble in titration of benzoic acid and NaOH? Benzoic is soluble in a solution of NaOH because the base forms the sodium salt with the acid to form sodium benzoate. The sodium salt is soluble. The second part of your ...
Wednesday, February 21, 2007 at 3:13am by kim

college chemistry
The enthalpy of combustion of benzoic acid,C6H5COOH, which is often used to calibrate calorimeters, is -3227kJ/mol. When 1.236g of benzoic acid was burned in a calorimeter, the tempurature increased by 2.345K. What is the specific heat of the calorimeter?
Monday, November 3, 2008 at 5:33am by annemarie

chemistry
How do I do a question like this please help and explain it!! Calculate the pH of a buffer solution that contains 0.22 M benzoic acid (C6H5CO2H) and 0.24 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Round your answer to two places past the decimal.
Sunday, March 25, 2012 at 8:13pm by Brittany

chemistry help !!!!!!!!!!!!!!!!
Benzoic acid react with NH2 group Draw the product of this reaction, name the new functional group produced, state the type of reaction that has occurred, name any other products of the reaction and briefly explain how you arrived at your answer.( one or two sentences.)
Monday, January 21, 2013 at 6:11pm by john

chemistry
Use the Henderson-Hasselbalch equation. pH = pKa + log [(base)/(acid)] (base) = concn of the salt. (acid) = concn benzoic acid.
Wednesday, June 22, 2011 at 10:37am by DrBob222

Chemistry
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (C6H5COONa). a) Find the pH of the benzoic acid solution BEFORE adding the salt. b) Use the Henderson-Hasselbalck equation to ...
Wednesday, February 13, 2013 at 12:40am by Lacy

Chemistry
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (C6H5COONa). a) Find the pH of the benzoic acid solution BEFORE adding the salt. b) Use the Henderson-Hasselbalck equation to ...
Wednesday, February 13, 2013 at 12:47am by Lacy

Chemistry
Since benzoic acid is an acid and quinine is a base, there is the possibility of them reacting to produce a salt. I don't have a set of tables, perhaps you do, that will give you the conjugate acid strengths. Bacid + quin ==> Bconj base + qconj acid acid + base ==> conj ...
Tuesday, March 31, 2009 at 7:29am by DrBob222

Chemistry
Have you changed compounds. Your earlier question concerned 4-aminoethyl benzoate. Straight benzoic acid would form a salt since it is an acid reacting with a base, NaOH. ArCOOH + NaOH ==> H2O + ArCOONa where Ar is the benzene ring. c). If HCl is added to the tube, HCl ...
Thursday, February 5, 2009 at 12:55am by DrBob222

chem
I have no idea what experiment 4 is nor what role the benzoic acid played in the experiment. However, g benzoic acid in the 20.5 mL is M x L x molar mass = grams. 5.256M x 0.0205 L x 122.12 = ?grams.
Monday, February 4, 2013 at 12:41am by DrBob222

Organic Chemistry
The separation of a mixture of benzoic acid and benzoin in dichloromethane into its pure compounds by a combination of solvent extraction , distillation and recrystallization. Why is carbon dioxide evolved when the organic solution is shaken with sodium bicarbonate? what is ...
Wednesday, November 17, 2010 at 2:15pm by Davia

chem 12
You start over. Benzoic acid is an acid, not a base. Let's call benzoic acid HB. ..........HB ==> H^+ + B^- init.....0.15.....0.....0 change....-x......x.....x equil....0.15-x...x.....x Ka + (H^+)(B^-)/(HB) Substitute the equilibrium line above into the Ka expression and ...
Tuesday, October 11, 2011 at 2:03pm by DrBob222

chemisry
Q2. Distinguish between the following- 1. CH3OH and C2H5OH 2. Phenol and methanol 3. 1-Propanol and 2-Methyl-2-propanol 4. Ethenol and 1-propanol 5. Propanol and propanone 6. Acetaldehyde and benzaldehyde 7. Benzaldehyde and benzoic acid 8. Propanoyl Chloride and propanoic ...
Sunday, July 7, 2013 at 12:50pm by neha

Organic Chemistry
Both benzoic acid and triphenyl are organic solutes, and therefore will dissolve in organic solvents. (ie: diethyl ether) Benzoic acid (an acid) will react with a strong base (ie: NaOH) to form sodium benzoate (which is a water soluble salt) and aqueous NaCl. Therefore, if you...
Friday, October 22, 2010 at 3:58pm by Anonymous

Chemistry
mols benzoic acid = grams/molar mass = 1.316/122.123 = ? delta H combustion = 3227 x mols benzoic acid. Then Ccal = delta H/delta T.
Friday, August 3, 2012 at 5:23pm by DrBob222

Chemistry
Mols benzoic acid = 12.2g/122.12g = 0.0999 Int. Concentration of Benzoic acid = 0.0999 mol/ 0.500L = 0.1998 M Ka = 6.3 x 10-5 = (x)(x)/0.1998 – x X = [H+] = * M pH = -log(*) = * Sorry, this question is just really confusing me..
Wednesday, May 16, 2012 at 2:53pm by Jake

Chemistry
Mols benzoic acid = 12.2g/122.12g = 0.0999 Int. Concentration of Benzoic acid = 0.0999 mol/ 0.500L = 0.1998 M Ka = 6.3 x 10-5 = (x)(x)/0.1998 – x X = [H+] = * M pH = -log(*) = * Sorry, this question is just really confusing me..
Wednesday, May 16, 2012 at 3:35pm by Jake

Chemistry
I don't understand ice table at all..can anyone please guide me in how to solve the following question? : The pH of a 0.00250 mol/L solution of benzoic acid is 3.65. Calculate the Ka for the benzoic acid. (This question does not state that the given concentration is an ...
Tuesday, June 15, 2010 at 2:14am by Jessica

chem
Benzoic acid = HB millimols HB = 50 x 0.015 = 0.750 mmols KOH = 30 x 0.015 = 0.45 ............HB + KOH ==>KB + H2O initial...0.75...0.45....0....0 change...-0.45..-0.45.+0.45..+0.45 equil.....0.30....0.....0.45..0.45 So what you end up with is benzoic acid (0.30 mmols--a ...
Tuesday, April 17, 2012 at 7:30pm by DrBob222

Chemistry
Separating a mixture of benzoic acid, acetanilide in dichloromethane An over zealous student decided to conduct this experiment by distilling all the dicholoromethane at the very beginning and then separating the solid residue of benzoic acid and acetanilide by ...
Wednesday, January 23, 2013 at 6:47pm by Simone

CHEM-102
Calculate the pH of a solution prepared by mixing 10.00mL of 0.50M NaOH and 20.00mL of 0.50M benzoic acid solution. (Benzoic acid is monoprotic; its ionization constant is 6.7x10^-5).
Sunday, March 27, 2011 at 5:55pm by Christian

chemistry
predict the order of increasing acidity of the compounds. Give a brief explanation why. Butanoic acid-Nexanoic acid-Benzoic acid-Acetic acid. thx
Saturday, November 6, 2010 at 12:26pm by david

Chemistry
what are the other chemistry forms present in the dichloromethane solution besides the normal neutral forms for benzoic acid and quinine? (benzoic acid,pKa 4.2; quinnie, pKa 8.5)
Tuesday, March 31, 2009 at 7:29am by Nancy

Chemistry
An etheral solution contains benzoic acid, 9-fluorenone, abd ethyl 4-aminobenzoate. Why would benzoic acid and 9-fluorenone not be extracted from this etheral solution by aqueous HCl ?
Tuesday, May 15, 2012 at 5:10pm by Samantha

chemistry
additional notes: - dichloromethane (CH2Cl2) is the organic solvent in which quinine dissolves; like dissolves like. - NaOH (aq) reacts with benzoic acid to form sodium benzoate and water (acid-base reaction).
Tuesday, March 31, 2009 at 7:34am by Debs

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