Homework Answers
The given data shows about effect of molecular weight of PLGA on degradation rate:
- The degradation effects can be studied by usings solvents including chlorinated solvents, tetra hydrofuran, acetone or ethyl acetate.
- lower molecular weight PLGAs degrades more quickly
- Larger molecular weight PLGAs could not increase the loading content and encapsulation efficiency and it have low degradation rate.
- Due to its favourable degradation characteristics PLGAs are used as biocompatible device for drug delivery.
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Time (d) 0 1 3. Molecular weight of PLGA 6240 + 105 5450 + 138 5381...
Time (d) Inflow (cfs) 104 Outflow (cfs) 104 105 116 138 173 232 361 481 738...
Time (d) Inflow (cfs) 104 Outflow (cfs) 104 105 116 138 173 232 361 481 738 831 730 612 528 468 441 413 366 334 297 247 210 170 150 129 115 0.333333333 143 182 235 414 486 858 908 700 563 495 440 430 409 345 324 288 226 198 152 144 120 110 101 0.666666667 1.333333333 1.666666667 2.33333333.3 2.666666667 3.3333333313 3.666666667 4 4.333333333 4.666666667 5.333333333 5.666666667 6.333333333 6.666666667 7.333333333 7.666666667 Route the given inflow hydrograph using the Muskingum-Cunge...
Effect of Molecular weight on Diffusion Time (Minutes) 0 10 20 30 40 50 60 Percent...
Effect of Molecular weight on Diffusion Time (Minutes) 0 10 20 30 40 50 60 Percent increase Methylene Blue 14.022.0125.0 20.0 20.-22 -100 9.0|14.0/16.0 18.0 /19.0/19.000122.221 Potassium Permanganate According to your data, what molecule (methylene blue or potassium permanganate) diffused the fastest? Check Your Understanding 1.1 Based on the data, what generalization can be made about the relationship between diffusion rate and molecular weight? 1.2 By observing the rate of diffusion from the data collected, does diffusion rate change over...
Determination of Molecular Structure from molecular formula, mass, IR, and Mass Spec data. Molecular Weight: 134.22...
Determination of Molecular Structure from molecular
formula, mass, IR, and Mass Spec data.
Molecular Weight: 134.22
Molecular Formula: C10H14
I need help finding the structure.
IR Data (3300-2650 Range):
*No peaks between 2650 and 2100*
IR Data (2100-600 Range):
MS Data (Two different views):
MS Peaks Labeled:
Transmittance 60 80 100 3250 43088.1; 95. +3060.1; 93.5 -3022.9; 93.9 2961.4; 64.843 3200 3150 3100 3050 3000 Wavenumber (cm-1) 2950 TTTTTTTTTTTTTIIIIIITTTTTTTTTTTTTTTTTTTTTTTTTTT 29002850 2800 2750 2700 2650 2903.6; 86.663 2866.3; 86.398 20... 40...
1. Time Cash Flows 0 ($200,000) 1 0 2 0 3 0 4 0 5 0...
1. Time Cash Flows 0 ($200,000) 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 $5,000,000 The internal rate of return of this cash flow stream is between 37% and 38%. True False 2. Time Cash Flows 0 ($100,000) 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 $400,000 The internal rate of return of this...
1. The empirical formula of an unknown substance is HSO4. If the molecular weight of the...
1. The empirical formula of an unknown substance is HSO4. If the molecular weight of the substance 194 glmol, what is its molecular formula? 2. How many grams of ammonia are produced when 32g of nitrogen react with excess hydrogen? N2 3H23 2NH, 3. The empirical formula of an unknown substance is determined to be CH2. What is its molecular formula if the molecular weight is 84 gmole? 4. Nicotine has an empirical formula of CsHTN and a molecular weight...
The molecular weight of butane is 58.14 g/mol. Based on the number of grams of gas...
The molecular weight of butane is 58.14 g/mol. Based on the number of grams of gas measured, how many moles is this? (moles = mass / molecular weight) Choose the closest answer. A. 5.5 * 10^-1 moles 0.361g B. 8.1 * 10^-4 moles C. 6.2 * 10^-3 moles D. 9.4 * 10^-2 moles
PARTB Experiment 1 (201). Molecular Weight Determination The 1-1. You will be in the wild with...
PARTB Experiment 1 (201). Molecular Weight Determination The 1-1. You will be in the wild with me is found in rabbit serum. This protein is called serumbumin. The sandard unknown proteins and the rabbit serum prins for this experimentarehe pre- tined to allow you to follow the portion during crophews Background Information A first step in the analysis of a protein in the molecular biology laboratory frequently involves determination of its sie or molecular weight. The molecular weight of a...
calculate the number average molecular weight of a copolymer erm Remmaining Time 13:27:41 Calculate the number-average...
calculate the number average molecular weight of a
copolymer
erm Remmaining Time 13:27:41 Calculate the number-average molecular weight of a copolymer of butadiene and dimethylsilaxane in which 1/5 of the repeat units are butadiene, and the rest are dimethylsilacane. Assume the number-average degree of polymerization is 101.500. 8.01E6 amu 9.53E6 amu 7.12E6 amu O 6.66E6 amu Cuit & Save Back Question Menu SUbmit Assgnment
8. Bellman-Ford Algorithm a) For iteration 1, fill arrays d and p. 5 2 3 2 3 3 Edge Weight 0-1 5 0-22 1-03 1--34 2-3 6 b) Draw the resultant graph based on the values in arrays d and p: 8. Bellm...
8. Bellman-Ford Algorithm a) For iteration 1, fill arrays d and p. 5 2 3 2 3 3 Edge Weight 0-1 5 0-22 1-03 1--34 2-3 6 b) Draw the resultant graph based on the values in arrays d and p:
8. Bellman-Ford Algorithm a) For iteration 1, fill arrays d and p. 5 2 3 2 3 3 Edge Weight 0-1 5 0-22 1-03 1--34 2-3 6 b) Draw the resultant graph based on the values in arrays d...
1. (4 points) Given that the average molecular weight of an amino acid is 110 daltons...
1. (4 points) Given that the average molecular weight of an amino acid is 110 daltons (Da), determine the following. Remember to convert between daltons and kilodaltons (kDa) where necessary. Each of your answers must be numerically correct and expressed in proper units (1 pt) and show how the value was arrived at using the amino acid molecular weight above (1 pt) for you to receive full credit. A. A molecule of human a-tubulin has a molecular weight of 50.1...
Time (d) Inflow (cfs) 104 Outflow (cfs) 104 105 116 138 173 232 361 481 738 831 730 612 528 468 441 413 366 334 297 247 210 170 150 129 115 0.333333333 143 182 235 414 486 858 908 700 563 495 440 430 409 345 324 288 226 198 152 144 120 110 101 0.666666667 1.333333333 1.666666667 2.33333333.3 2.666666667 3.3333333313 3.666666667 4 4.333333333 4.666666667 5.333333333 5.666666667 6.333333333 6.666666667 7.333333333 7.666666667 Route the given inflow hydrograph using the Muskingum-Cunge...
Effect of Molecular weight on Diffusion Time (Minutes) 0 10 20 30 40 50 60 Percent increase Methylene Blue 14.022.0125.0 20.0 20.-22 -100 9.0|14.0/16.0 18.0 /19.0/19.000122.221 Potassium Permanganate According to your data, what molecule (methylene blue or potassium permanganate) diffused the fastest? Check Your Understanding 1.1 Based on the data, what generalization can be made about the relationship between diffusion rate and molecular weight? 1.2 By observing the rate of diffusion from the data collected, does diffusion rate change over...
Determination of Molecular Structure from molecular
formula, mass, IR, and Mass Spec data.
Molecular Weight: 134.22
Molecular Formula: C10H14
I need help finding the structure.
IR Data (3300-2650 Range):
*No peaks between 2650 and 2100*
IR Data (2100-600 Range):
MS Data (Two different views):
MS Peaks Labeled:
Transmittance 60 80 100 3250 43088.1; 95. +3060.1; 93.5 -3022.9; 93.9 2961.4; 64.843 3200 3150 3100 3050 3000 Wavenumber (cm-1) 2950 TTTTTTTTTTTTTIIIIIITTTTTTTTTTTTTTTTTTTTTTTTTTT 29002850 2800 2750 2700 2650 2903.6; 86.663 2866.3; 86.398 20... 40...
1. The empirical formula of an unknown substance is HSO4. If the molecular weight of the substance 194 glmol, what is its molecular formula? 2. How many grams of ammonia are produced when 32g of nitrogen react with excess hydrogen? N2 3H23 2NH, 3. The empirical formula of an unknown substance is determined to be CH2. What is its molecular formula if the molecular weight is 84 gmole? 4. Nicotine has an empirical formula of CsHTN and a molecular weight...
PARTB Experiment 1 (201). Molecular Weight Determination The 1-1. You will be in the wild with me is found in rabbit serum. This protein is called serumbumin. The sandard unknown proteins and the rabbit serum prins for this experimentarehe pre- tined to allow you to follow the portion during crophews Background Information A first step in the analysis of a protein in the molecular biology laboratory frequently involves determination of its sie or molecular weight. The molecular weight of a...
calculate the number average molecular weight of a
copolymer
erm Remmaining Time 13:27:41 Calculate the number-average molecular weight of a copolymer of butadiene and dimethylsilaxane in which 1/5 of the repeat units are butadiene, and the rest are dimethylsilacane. Assume the number-average degree of polymerization is 101.500. 8.01E6 amu 9.53E6 amu 7.12E6 amu O 6.66E6 amu Cuit & Save Back Question Menu SUbmit Assgnment
8. Bellman-Ford Algorithm a) For iteration 1, fill arrays d and p. 5 2 3 2 3 3 Edge Weight 0-1 5 0-22 1-03 1--34 2-3 6 b) Draw the resultant graph based on the values in arrays d and p:
8. Bellman-Ford Algorithm a) For iteration 1, fill arrays d and p. 5 2 3 2 3 3 Edge Weight 0-1 5 0-22 1-03 1--34 2-3 6 b) Draw the resultant graph based on the values in arrays d...
1. (4 points) Given that the average molecular weight of an amino acid is 110 daltons (Da), determine the following. Remember to convert between daltons and kilodaltons (kDa) where necessary. Each of your answers must be numerically correct and expressed in proper units (1 pt) and show how the value was arrived at using the amino acid molecular weight above (1 pt) for you to receive full credit. A. A molecule of human a-tubulin has a molecular weight of 50.1...
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