A pure organic amide product (2.85 g) which has a molecular weight of 285.34 g/mol was...
A pure organic amide product (2.85 g) which has a molecular weight of 285.34 g/mol was fully dissolved in 20mL of the boiling solvent, hexanes. This organic amide product then underwent a recrystallization when the solvent was cooled to 0° C. The recrystallized organic product (2.62 grams) was obtained after vacuum filtration.
What is the solubility (mol/L) of the organic amide product in the boiling solvent, hexanes?
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A pure organic amide product (2.85 g) which has a molecular
weight of 285.34 g/mol was...
given that Kb=3.63 8. 12 g of sucrose (CzH201, molecular weight 342 g/mol) is dissolved in 1 of form (CHCla, molecular weight 119 g/mol). What is the boiling point for this chloro solution?...
given that Kb=3.63
8. 12 g of sucrose (CzH201, molecular weight 342 g/mol) is dissolved in 1 of form (CHCla, molecular weight 119 g/mol). What is the boiling point for this chloro solution?
8. 12 g of sucrose (CzH201, molecular weight 342 g/mol) is dissolved in 1 of form (CHCla, molecular weight 119 g/mol). What is the boiling point for this chloro solution?
1. A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The...
1. A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The flask is heated using a boiling water bath until all of the liquid has evaporated. After heating for an additional 1 or 2 minutes, the flask is removed from the boiling water bath, corked, and cooled using a room temperature water bath. Predict the mass of condensed vapor. Temperature of the hot water bath (ºC): 99.5 Volume of...
A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The fl...
A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The flask is heated using a boiling water bath until all of the liquid has evaporated. After heating for an additional 1 or 2 minutes, the flask is removed from the boiling water bath, corked, and cooled using a room temperature water bath. Predict the mass of condensed vapor. Temperature of the hot water bath (ºC): 99.4 Volume of the...
How many moles of benzaldehyde (density d = 1.04 g/ml), (molecular weight mw = 106.12 g/mol)...
How many moles of benzaldehyde (density d = 1.04 g/ml), (molecular weight mw = 106.12 g/mol) are required to react with 1.0 ml of acetone: (density d = 0.79 g/ml), (molecular weight mw = 58.08 g/mol)? 6. What is approximate theoretical yield for problem # 5 if you obtained 2.1 grams of dibenzylidene acetone (mw = 234.29 g/mol)?
An ionic molecular solid AX has a molecular weight 250 g/mol is face centered cubic with...
An ionic molecular solid AX has a molecular weight 250 g/mol is face centered cubic with regard to the anions, X, which have a radius of 300 pm. The cations, A+, have radius 200 pm and are found octahedral interstitial spaces. The edge of each unit cell is as long as the diameter of 1 cation and 1 anion. When 25 grams of AX (as described above) is dissolved into 500 grams of water at 293.15 K 41.36 kJ of...
3) a) The average molecular weight Mm (g/mol) for a thermoplastic material that has the mean weig...
3) a) The average molecular weight Mm (g/mol) for a thermoplastic material that has the mean weight fractions f for the weight ranges listed in the table is: f M Molecular weight range, g/mol 5,000-10,000 10,000- 15,000 15,000-20,000 20,000-25,000 0.30 0.20 0.35 0.15 Σ fi 1.00 What is the mass of one polymer chain in grams? b)
3) a) The average molecular weight Mm (g/mol) for a thermoplastic material that has the mean weight fractions f for the weight ranges...
A compound whose molecular weight is 100 g/mol, has a molar absorptivity of 1.00X10^5 M-1 cm-1....
A compound whose molecular weight is 100 g/mol, has a molar absorptivity of 1.00X10^5 M-1 cm-1. How many grams of this compound should be dissolved in exactly 1 liter of solution so that after diluting it 200 times the solution has an absorbance of 0.500 in a cell of 1.00 cm?
An ionic molecular solid AX has a molecular weight 250 g/mol is face centered cubic with...
An ionic molecular solid AX has a molecular weight 250 g/mol is face centered cubic with regard to the anions, X, which have a radius of 300 pm. The cations, A+, have radius 200 pm and are found octahedral interstitial spaces. The edge of each unit cell is as long as the diameter of 1 cation and 1 anion. How many of each ion exists in the unit cell? What is the density of the unit cell? How many atoms...
4-aminophenol (1.0 g) was dissolved in an inert organic solvent. Pyridine (1.50 mL) and acetyl ch...
4-aminophenol (1.0 g) was dissolved in an inert organic solvent. Pyridine (1.50 mL) and acetyl chloride (1.40 mL) were added, and the reaction was stirred until determined to be complete by TLC. Afteworkupup and purification, you isolated 1.40 g of a product. The experimental melting point was 155 oC, and mass spec analysis indicated that the molecular weight of this product is 193.20 g mol─1. What is the structure of the isolated product? Suggest a specific procedural modification that would...
Its Thermodynamics question (6. 10 points) For pure O2 (molecular weight 32 g/mol) at 300 K...
Its Thermodynamics question
(6. 10 points) For pure O2 (molecular weight 32 g/mol) at 300 K and 3.0 MPa find the specific volume (6a). (5p) using the ideal gas equation (6b). (5p) using the ideal gas equation along with the compressibility chart if the critical point for O2 is 154.6 K and 5.05 MPa.
given that Kb=3.63
8. 12 g of sucrose (CzH201, molecular weight 342 g/mol) is dissolved in 1 of form (CHCla, molecular weight 119 g/mol). What is the boiling point for this chloro solution?
8. 12 g of sucrose (CzH201, molecular weight 342 g/mol) is dissolved in 1 of form (CHCla, molecular weight 119 g/mol). What is the boiling point for this chloro solution?
An ionic molecular solid AX has a molecular weight 250 g/mol is face centered cubic with regard to the anions, X, which have a radius of 300 pm. The cations, A+, have radius 200 pm and are found octahedral interstitial spaces. The edge of each unit cell is as long as the diameter of 1 cation and 1 anion. When 25 grams of AX (as described above) is dissolved into 500 grams of water at 293.15 K 41.36 kJ of...
3) a) The average molecular weight Mm (g/mol) for a thermoplastic material that has the mean weight fractions f for the weight ranges listed in the table is: f M Molecular weight range, g/mol 5,000-10,000 10,000- 15,000 15,000-20,000 20,000-25,000 0.30 0.20 0.35 0.15 Σ fi 1.00 What is the mass of one polymer chain in grams? b)
3) a) The average molecular weight Mm (g/mol) for a thermoplastic material that has the mean weight fractions f for the weight ranges...
An ionic molecular solid AX has a molecular weight 250 g/mol is face centered cubic with regard to the anions, X, which have a radius of 300 pm. The cations, A+, have radius 200 pm and are found octahedral interstitial spaces. The edge of each unit cell is as long as the diameter of 1 cation and 1 anion. How many of each ion exists in the unit cell? What is the density of the unit cell? How many atoms...
Its Thermodynamics question
(6. 10 points) For pure O2 (molecular weight 32 g/mol) at 300 K and 3.0 MPa find the specific volume (6a). (5p) using the ideal gas equation (6b). (5p) using the ideal gas equation along with the compressibility chart if the critical point for O2 is 154.6 K and 5.05 MPa.
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