do not answer with ai Derive the Gibbs-Thomson relation (Equation 1) between vapor pressure and the size of aspherical nanodroplet (pictorially, assume the nanodroplet is adhered to a solid surface).Equation 1: In (P)=2yvmRTrThe following will be helpful: AP = Pin - Pext = 2 and dGin = Vin dPin; dGext =Vext dPext

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Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

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Problem 1P

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Calculate the percentage of stated content in paracetamol tablets using the calbration curve given above and the following data: Data • Weight of 20 tablets¼12.2243 g • Weight of tablet powder taken¼152.5 mg • Stated content per tablet¼500 mg • Initial extraction volume¼200 ml. Dilution steps • 20 ml into 100 ml • 10 ml into 100 ml • Area of chromatographic peak for paracetamol extracted from the tablets¼44 519.
What is the chemistry principle behind when (treatment: heavy cream) is subjected to CHILLED TEMPERATURE? What is the effect in beating time, stability (%drain) and volume foam (specific gravity) is important? see the data below Treatment (Heavy Cream) Beating Time (min) Stability (%drain) Volume of Foam (Specific Gravity) (Room Temperature) 20 No drain 0.94 Heavy Cream (chilled) 20 No drain 0.76 Heavy Cream with sugar and vanilla 20 No drain 0.88 Heavy Cream (over-whipped) 25 No drain 0.83
The standard curve to determine the amount of betacyanin is shown below. You extracted a red pigment from a beet disc (the mass of a disc is 2 g) using 10 ml of 20% ethanol solution. You measured absorbance of the solution above the beet disc every minute for a total time of 20 minutes. The increase in absorbance was linear during a period of time from 1 min to 10 min. The absorbance at 10 min was 0.8. Calculate the amount of betacyanin extracted from 1g of a beet tissue per minute. Explain your calculations. You can use Excel or a calculator.
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at 257 nm) is dissolved in 2.5 mL of buffer. A 250 microliter aliquot is removed and placed in a 1.0 cm A sample of adenosine triphosphate (ATP) (MW 507, ɛ = 14,700 M'cm cuvette with sufficient buffer to give a total volume of 2.0 mL. The absorbance of the sample at 257 nm is 2.0. Calculate the weight of ATP in the original 2.5 mL sample. (Choose the correct value from the drop-down list provided. The values of weight are listed in units of milligrams.) Weight of ATP: v mg
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Derive the Gibbs-Thomson relation (Equation 1) between vapor pressure and the size of a spherical nanodroplet (pictorially, assume the nanodroplet is adhered to a solid surface). Equation 1: In (P) = 2yvm RTr The following will be helpful: AP = Pin - Pext = 2 and dGin = Vin dPin; dGext = Vext dPext