A student reacts zinc with HCl in a coffee cup calorimeter: Zn(s) + 2HCI(aq) → ZnCl2(aq) + H2(g) The student measures the mass of the empty calorimeter with lid and stir bar to be 4.057 g. The student combined 1.492 g of zinc with enough HCI solution to make all of the zinc react in the calorimeter. The temperature of the solution was monitored and graphed over time (in seconds). Its temperature remained at 22.04 °C until the zinc was added, which occurred 64.0 seconds after the timer was started. After zinc was added, the temperature went up immediately, and then slowly returned to room temperature. A best fit line was drawn through the points as the temperature returned to room temperature, and the equation of that line was y =-0.0075x + 39.9. Before discarding the solution at the end, the mass of the calorimeter, lid, stir bar, and solution was found to be 54.057 g. Find AHan for this reaction as written. Assume the specific heat capacity of the solution is 4.18 J/g.°C.
Neutral Amino Acids
Amino acids which do not have any charge on them are neutral amino acids.
Globular Protein
The globular proteins refer to the shape of protein specifically spherical in nature apart from spherical form fibrous, disordered and membrane-bound proteins exist. These globular proteins are miscible in water and form a colloidal solution rather than other types which might not exhibit solubility. Many classes of the fold are found in globular proteins, which render them a sphere shape. Globular fold containing proteins usually are referred to by the term globin.
Dimer
Dimers are basic organic compounds, which are derivates of oligomers. It is formed by the combination of two monomers which could potentially be strong or weak and in most cases covalent or intermolecular in nature. Identical monomers are called homodimer, the non-identical dimers are called heterodimer. The method by which dimers are formed is known as “dimerization”.
Dipeptide
A dipeptide is considered a mixture of two distinct amino acids. Since the amino acids are distinct, based on their composition, two dipeptide's isomers can be produced. Various dipeptides are biologically essential and are therefore crucial to industry.
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![A student reacts zinc with HCl in a coffee cup calorimeter:
\[ \text{Zn(s) + 2HCl(aq) → ZnCl}_2\text{(aq) + H}_2\text{(g)} \]
The student measures the mass of the empty calorimeter with lid and stir bar to be 4.057 g. The student combined 1.492 g of zinc with enough HCl solution to make all of the zinc react in the calorimeter. The temperature of the solution was monitored and graphed over time (in seconds). Its temperature remained at 22.04 °C until the zinc was added, which occurred 64.0 seconds after the timer was started. After zinc was added, the temperature went up immediately, and then slowly returned to room temperature. A best fit line was drawn through the points as the temperature returned to room temperature, and the equation of that line was \( y = -0.0075x + 39.9 \). Before discarding the solution at the end, the mass of the calorimeter, lid, stir bar, and solution was found to be 54.057 g. Find \( \Delta H_{\text{rxn}} \) for this reaction as written. Assume the specific heat capacity of the solution is 4.18 J/g°C.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4623fc6-165c-41ee-ad2c-ab19e78f0a44%2F43445d7e-2288-4719-8915-1e6dd6ae84c3%2Fyatpvoh_processed.png&w=3840&q=75)
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