solvent front origin

Q: Indicate the proper sequence of steps required to prepare a buret for use in this experiment. It may…

A: The steps of the preparation given are,

Q: NaOH buret 2nd reading 29,45 32.05 NaOH buret 1st reading 0,02 mL 0.01 mL Slighty derker pinh Light…

A: Formula used : RSD = s ×100x¯ where, RSD = Relative Standard Deviations = Standard Deviation x¯=…

Q: For manufacturing 1 litter of Acid free shampoo for bike or car washing, which textile dye i should…

A: When it comes to coloring agents or dyes for formulations, there are several factors to consider…

Q: Organic solids are best purified by a. recrystallization b. vacuum distillation c. fractional…

A: Purification of organic compounds can be done by various methods namely distillation method,…

Q: 3. The following mineral analysis was reported for a water sample taken from a local NJ well.…

A:

Q: Compound A Compound B Compound C Rf Student 1 Rf Student 2 Rf Student 3 0.20 0.21 0.15 0.50 0.52…

A: Retardation or retention factor (Rf) value is the ratio of distance traveled by the analyte to that…

Q: 15 μL of a 1mg/mL bovine serum albumin standard (BSA) were added to 3 mL of Bradford reagent. How…

A: Volume of bovine serum albumin standard (BSA) added =  15 μLConcentration of the BSA standard…

Q: 2. Consider the following example GC Chromatogram from a publication about aggression among…

A: A total of 22 CHCs were recorded by GC-MS analysis in the chemical profile of the ants. The most…

Q: During the lab procedure a filtered pipette was used to measure out 1.0 mL of the saturated…

A: A question based on analytical separation. Separation of saturated organic solution using cotton is…

Q: Weigh out 5g of table salt. Dissolve it in 50mL of distilled water in a container using a stirrer…

A: Given information is as follows: The mass of table salt = 5 g The volume of distilled water = 50 mL…

Q: Please help me calculate this: I have a protein sample that has the concentration of 0.30835 µg/ml.…

A: 1 milliliter is equal to 1000 microliters. In the question given that , initial concentration of a…

Q: What is the full form of ppm ? For what purpose it is used.

A: The term ppm can be described as the types of the mass related units that would be used to determine…

Q: If the original gravity is 1.03 and final gravity is 0.96, calculate the percent alcohol content…

A: Alcohol by volume percent = (original gravity-final gravity)/0.00753

Q: A 1 mL sample of glycogen was calculated to contain 21 µmol (micromole) glucose. To 1 mL of this…

A: This question is from basic mole concept .

Q: 3. Take another 10mL of the temporary hard water and boil for 5 minutes mL of soap solution to the…

A: The given water is temporary hard water sample. Temporary hardness in water is due to dissolved…

Q: A 1 mL sample of glycogen was calculated to contain 35 µmol (micromole) glucose. To 1 mL of this…

A: Given, Volume of sample of glycogen = 1 mL Moles of glucose = 35 micromole HCl volume = 2mL…

Q: How many milligrams of piroxicam is required to make 5 solid ounces of 1:270 (w/w) piroxicam gel?

A:

Q: Complete the table:…

A: Molisch’s test: It is the chemical test used to check for the presence of carbohydrates in a given…

Q: True or false. 1. In an immunoassay for drugs of abuse, any concentration greater than 0 is…

A:

Q: Question 1. a) You think that you have isolated a substance A in the lab. It melts at 75 – 77C.…

A: Melting point of a compound is the temperature at which its liquid state and vapour state are in…

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.