A mixture of two compounds, A and B, was separated by extraction. After the compounds were...
A mixture of two compounds, A and B, was separated by extraction. After the compounds were dried, their masses were found to be: 117 mg of compound A and 93 mg of compound B. Both compounds were recrystallized and weighed again. After recrystallization, the mass of compound A was 95 mg and the mass of compound B was 85 mg. Calculate the percent recovery from recrystallization for both compounds.
Homework Answers
=95/117 *100
=81.19%
Percentage recovery of B
=85/95 *100
=89.47%
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A mixture of two compounds, A and B, was separated by extraction.
After the compounds were...
Is this correct???? A 537 mg of a mixture of fluorene and benzoic acid was weighed...
Is this correct????
A 537 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After this purification was completed the product crystals were dried and analyzed. The purification procedure produced 201 mg of fluorene and 242 mg of benzoic acid. Calculate the percent composition of this mixture.
A 577 mg of a mixture of fluorene and benzoic acid was weighed out and subjected...
A 577 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After this purification was completed the product crystals were dried and analyzed. The purification procedure produced 247 mg of fluorene and 167 mg of benzoic acid. Calculate the percent composition of this mixture. Fluorene Benzoic Acid Number Number 0 0
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solve 3 and 4 1989 Cengage Learning chlorine ions 5. A student was asked to determine...
solve
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1989 Cengage Learning chlorine ions 5. A student was asked to determine the percentage of the components of a mixture of potassium bromide (KBr), magnesium hydroxide, Mg(OH)2, and barium sulfate (BaSOA). The mass of the sa- mple of the mixture used was 3.21 g. The student extracted the KBr from the mixture with water and filtered insoluble Mg(OH)2 and BaSO, from the solution, containing the KBr. After evaporating the filtrate, the student recovered and dried the...
Is this correct????
A 537 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After this purification was completed the product crystals were dried and analyzed. The purification procedure produced 201 mg of fluorene and 242 mg of benzoic acid. Calculate the percent composition of this mixture.
A 577 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After this purification was completed the product crystals were dried and analyzed. The purification procedure produced 247 mg of fluorene and 167 mg of benzoic acid. Calculate the percent composition of this mixture. Fluorene Benzoic Acid Number Number 0 0
6. 50:50 mixture of Naphthalene and 4-Chloroaniline prepared, the extraction occurred using an ether solution. The mixture was prepared by a professional and is both accurate and precise. All glassware was cleaned with acetone. The SDS reports the following MPs: naphthalene = 80-82C and 4-chloroaniline = 67-700 • Mass of mixture: 1.992 g • Recovered Mass of naphthalene: 0.982 g • Mass of 4-chloroaniline: 1.032 Naphthalene MP: 79.5 - 83.9°C • 4-Chloroaniline MP: 63.5 - 71.9°C Calculate the percent yield...
A mixture of compounds containing dimethylamine, phenol, ammonia, and acetic acid is separated using liquid-liquid extraction as follows: Step 1: Concentrated HCl is added followed by draining the aqueous layer. Step 2: Dilute NaOH is added to the organic layer followed by draining the aqueous layer. Step 3: Concentrated NaOH is added to the organic layer followed by draining the aqueous layer. Which compound would you expect to be extracted into the aqueous layer after the addition of dilute NaOH,...
The goal of this experiment is to separate a mixture of two unknown compounds into individual Components and to identify the compounds. Answer the questions below. More than one answer may be possible. Why do we need to be especially careful when working with diethyl ether? Fumes can cause drowsiness & dizziness, and in high concentration, loss of consciousness Because it is highly acidic and can burn the skin Because it is extremely volatile and flammable. Of all of the...
solve
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