Question

If you react 0.025 moles of 2-methylbromobenzene, 0.7 mg of Mg, and 10g of dry ice,...

If you react 0.025 moles of 2-methylbromobenzene, 0.7 mg of Mg, and 10g of dry ice, what is your theorectical yield of 2-methylbenzoic acid?

What would be a proper purification method to obtain pure corboxylic acid from Grignard Reaction? (obtions: crystallization, extractions, distillation)

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Theoretical Yield: It is how much product will be synthesized in ideal conditions.

To determine theoretical yield, multiply the amount of moles of the limiting reagent by the ratio of the limiting reagent and the synthesized product and by the molecular weight of the product.

1mole of 2-Bromomethyl benzene = 1mole of 2-methyl benzoic acid (M.wt=136.2g/mol)

Therefore, theoritical yield = 0.025*1mol 2-MBA/1mol2-BMB*136.2g2-MBA/1mol2-MBA

= 0.025*1/1*136.2 = 3.405g

Therefore, in a perfect experiment, 3.045 g of 2-Methylbenzoic acid will be synthesized.

Since Grignard reagent and carboxylic acid are soluble in organic solvents they can be purified by recrystallization.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
(a) In a chemical reaction 3 moles of one gas and 2 moles of a second...
(a) In a chemical reaction 3 moles of one gas and 2 moles of a second gas react to form 4 moles of a third gas and 2 moles of liquid. Would you expect DS to be positive, negative, or close to zero for this reaction? DS for this reaction should . (b) In which of the processes described below should the entropy increase? Choose all of the correct possibilities. ice cubes melting at -5 oC and 1 atm pressure...
(a) In a chemical reaction 3 moles of A(g) and 2 moles of B(g) react to...
(a) In a chemical reaction 3 moles of A(g) and 2 moles of B(g) react to form 4 moles of C(g) and 1 mole of D(g). Would you expect DS to be positive, negative, or close to zero for this reaction? DS for this reaction should . (b) In which of the processes described below should the entropy increase? Choose all of the correct possibilities. ice cubes melting at -5 oC and 1 atm pressure a spark causes hydrogen and...
After re-weighing your crude 4-bromoacetanilide (214.06 g/mol), you obtain 163 mg of crude product. After recrystallization,...
After re-weighing your crude 4-bromoacetanilide (214.06 g/mol), you obtain 163 mg of crude product. After recrystallization, you isolate 121 mg of pure product. If you started with 125 mg of acetanilide (135.17 g/mol), calculate the percent yield of 4-bromoacetanilide (214.06 g/mol) for this reaction. Assume an excess of bromine. Enter your answer as digits only, no percent sign, using the proper number of significant figures. Can you please explain it step by step. Reaction: Acetanilide + Br2 >>>>>>>CH3COOH with room...
You mix 6.0mL of 0.50M Na2SO4 with 8.0mL of 0.50M Pb(NO3)2 and collect and dry the...
You mix 6.0mL of 0.50M Na2SO4 with 8.0mL of 0.50M Pb(NO3)2 and collect and dry the PbSO4 precipitate. Calculate the following: a. Moles of Na2SO4 used b. Moles of Pb(NO3)2 used c. Moles of PbSO4 precipitate expected from Na2SO4 d. Moles of PbSO4 precipitate expected from Pb(NO3)2 e. What mass of PbSO4 do you expect to obtain from this reaction? f. If the actual mass of the precipitate you recover is 0.78g, what is the percent recovery of the precipitate?
Sodium Borohydride Reduction Reaction 1. Dissolve 600 mg of your carbonyl compound in 3 mL of...
Sodium Borohydride Reduction Reaction 1. Dissolve 600 mg of your carbonyl compound in 3 mL of methanol. Cover the flask with aluminum foil when not adding reagents or taking TLC samples to keep any water from getting in. 2. Cool your flask to 0° C using ice/water. 3. Allow to stir in the ice for 2 minutes then slowly add 0.4g of NaBH4 to your solution, then remove from ice bath and stir at room temperature. 4. After 10 min,...
please answer these questions 1-Consider the following balanced equation: 2 Fe(s) + 3 Cl2(g) → 2...
please answer these questions 1-Consider the following balanced equation: 2 Fe(s) + 3 Cl2(g) → 2 FeCl3(s) How many moles of iron(III) chloride are obtained when 7.67 moles of chlorine gas react with excess solid iron? Assume the reaction is 100% efficient. 2- What mass of hydrochloric acid must have reacted with magnesium if 9.56 grams of hydrogen were produced? Include units with your answer. The UNBALANCED equation is provided: Mg(s) + HCl(aq) → H2(g) + MgCl2(aq) 3- What volume...
I have posted the procedure of the lab below. Please tell me what the theoretical yield...
I have posted the procedure of the lab below. Please tell me what the theoretical yield is for aspirin based on this procedure and explain how you got it. I am not sure I am doing this right. SYNTHESIS OF ASPIRIN Procedure: Start heating a water bath in your 250 mL beaker by filling it with ~150 mL of tap water. Carefully weigh out 1.0 gram of salicylic acid. Transfer to a 50 mL Erlenmeyer flask. In the fume hood,...
1.Calculate how many moles of NH3 form when each quantity of reactant completely reacts according to...
1.Calculate how many moles of NH3 form when each quantity of reactant completely reacts according to the equation: 3N2H4(l)→4NH3(g)+N2(g) 4.10 mol N2H4 65.8 g N2H4 Hydrobromic acid dissolves solid iron according to the following reaction: 2.Fe(s)+2HBr(aq)→FeBr2(aq)+H2(g) What mass of HBr (in g) would you need to dissolve a 3.2 −g pure iron bar on a padlock? Express your answer using two significant figures. What mass of H2 would be produced by the complete reaction of the iron bar? Express your...
In Part 1 of Lab 2 you will make and standardize a solution of NaOH(aq). Suppose...
In Part 1 of Lab 2 you will make and standardize a solution of NaOH(aq). Suppose in the lab you measure the solid NaOH and dissolve it into 100.0 mL of water. You then measure 0.2013 g of KHP (KC8H5O4, 204.22 g/mol) and place it in a clean, dry 100-mL beaker, and then dissolve the KHP in about 25 mL of water and add a couple of drops of phenolphthalein indicator. You titrate this with your NaOH(aq) solution and find...
2) Fill in the reaction table below. Make sure you correctly calculate the molar amounts of...
2) Fill in the reaction table below. Make sure you correctly calculate the molar amounts of your reactive materials. name Formula mol.-eq Mw mmol amount Stilbene 1.00 600 mg Pyridiniym Bromide Perbromide 1.10 1.2 g Glacial acetic acid -- -- -- 12 ml Product 3) Based on your answers to Q2, which is the limiting reagent in this reaction? 4) Calculate the Theoretical Yield of your product, i.e. the mass you would expect to recover, assuming 100% conversion to product.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT