Propose a practical use where you might want to use an indicator to determine the pH of a solution in a biological system.

Q: What is the importance of enthalpy change in pharmaceutical sciences? Explain

A: Differential thermal analysis (DTA) is a technique for identifying and quantitatively analyzing the…

Q: How can I Using the trendline equation, calculate the concentration of protein in the Unknown…

A: A standard curve is based on linear regression analysis. In linear regression, we examine whether…

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Q: For the below product (a shampoo): If you were the lead scientist and developed this product. How…

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Q: Describe how you would make 500.0 mL of a 0.200 M NaOH solution from a 6.0 M stock NaOH solution and…

A: Dilution is the process of decreasing the concentration of a solute in a solution usually simply by…

Q: What is the importance of Moisture Content analysis in pharmaceuticals. Give examples of products…

A: The measure of moisture content during thermogravimetric analysis defines moisture as the loss of…

Q: When reacted, how does the use of potassium (K+) vs sodium (Na+) change the soap product?

A: Saponification is a biochemical process which deals with the conversion of  oil, lipid, and fats…

Q: How many moles of ATP can be obtained from palmitic acid? Show your solution.

A: The fatty acids that are released in the digestion of triglycerides are broken down in a series of…

Q: What biological molecules can you measure a concentration of using a spectrophotometer?

A: Introduction: A scientific method called spectrophotometry is used to quantify the amount of light…

Q: Calculate the amount of phycocyanin in Sample 1 in mg where A620=0.204 and A650=0.061, taking into…

A: Phycocyanin is a blue pigment found in cyanobacteria and certain algae. It is a phycobiliprotein…

Q: Specificity Specificity is the ability to measure accurately and specifically the analyte of…

A: To calculate the recovery percentage for each solution, you need to compare the peak areas obtained…

Q: If at the end of an experiment it is found that the bottle where laboratory waste must be placed is…

A: There are many chemical experiments where waste are produced. Waste is any excess, unusable or…

Q: Compute for the lactic acid content of these samples given the values below. Show your solution…

A: The amount of substance present in the mixture of substances can be defined in terms of…

Q: Describe two methods of water analysis.

A: Water could dissolve most of the biological molecules in it and so it is known as a universal…

Q: Bubbles of CO2  are formed during the reaction between vinegar, water and Alka Seltzer. Provide an…

A: Alka Seltzer is a tablet that is normally used in so many science experiments, it causes a bubbling…

Q: Use excel to plot the following titration data. Once you have done your plot, make sure to label the…

A: pH = If [H+] concentration in a solution is high, the pH will be low and the solution will be…

Q: Which of the following can most likely increase the yield of recrystallized benzoic acid?  CHOICES:…

A: Recrystallization is a method that is used for the purification of solid compounds by the removal of…

Q: ing an experiment to test water from various sources for the presence of lead (a heavy metal that…

A: It is the cause that is the independent variable. Its value is unaffected by the other study…

Q: Automation in the clinical laboratory also brought about the advantage of requiring only a minute…

A: A pipette (pipet) is a laboratory tool commonly used in all fields of life science to transfer a…

Q: Can you solve and show your solutions how to get the buffer regions/effective pH range of Cys?

A: Buffer zone/region in a range where the pH of the solution remains constant despite the dilution or…

Q: What is the definition of solute concentration?  A. The total amount of solute inside a cell B.…

A: A solvent is the component of a solution that is present in the greatest amount. It is the substance…

Q: What is the independent variable in this experiment? a) Data collected such as the health and growth…

A: Before going through the question to answer it, it is important to understand that what is the term…

Q: Explain what a pH indicator ( in general, not just an essay) and how pH indicators work

A: Introduction: pH: pH stand for the potential of hydrogen (concentration of hydrogen ions in a…

Q: Suppose that the pH of distilled water is 6.2, what will be its resulting color using phenol red.

A: The pH of a solution refers to the H+ ion concentration in the solution. A solution with a pH lower…

Q: Describe how measuring the biochemical oxygen demand (BOD) of a sample of water indicates something…

A:

Q: MATERIALS: Red Cabbage (sliced) PROCEDURE: 1. Wash red cabbage well. 2. Bring the water to a boil.…

A: Red cabbage is rich source of pigment called Anthocyanin. It is water soluble compound and depending…

Q: Which compound should be used to extract lipids from cells? 1. Water 2. A buffer with high…

A: Lipid is a macromolecule that was essential for the biological functions of the human body. where…

Q: Use the References to access in What is the common name of the following compound? Submit Answer Try…

A: Polymers are  materials made of long, repeating chains of molecules. The materials have unique…

Q: Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na.…

A: NOTE: since you have asked multiple question, we will solve the first question for you. if you want…

Q: A solution commonly used to grow plants in hydroponics is the Hoagland solution. A recipe for this…

A: The hydroponic nutrient solution is liquid with all of the necessary nutrients, so that plant roots…

Q: Define water activity and briefly describe how it can be determined. Why is it difficult for…

A: The tiny organisms that cannot be observed by unaided eyes are the microorganisms. The microbes…

Q: A student is designing an experiment to test water from various sources for the presence of lead (a…

A: For performing any scientific experiment the construction of hypothesis, selection of dependent…

Q: Write out a recipe to create the following solution: 5ml of 300mM Sodium Citrate (molecular weight -…

A: Molarity It can be calculated using the formula: M=n/V(L) n=w/mol.wt. M =w/mol.wt. × v We have to…

Q: Measurement of Bacterial Growth in LB, pH 3.2 Plot of Absorbance vs. Time (mins) c 37c 45'c 0.6 0.4…

A: The bacterial growth curve consists of four distinct growth phases: Lag Phase, Exponential Phase,…

Q: Explain why dichloromethane is a good solvent to remove the fat from the milk? Can you use organic…

A: Dichloromethane is a good option for milk fat removal. The reason is: Dichloromethane is a polar and…

Q: Procedure Water Fill a cup with 1/2 cup water. Add a few drops of blue food coloring to the cup.…

A: The hydrogen atom's electron density is drawn away from it by the oxygen atom of an alcohol's…

Q: Which of the following correctly states the purpose of the titration of vinegar experiment? O To…

A: Titration is a quantitative process used to determine the amount of solute present in the given…