Actice learning discussion 2

General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate, ATP, to adenosine diphosphate, ADP, as described by the reaction АТР(аq) + H,О() — ADP(aq) + HРО (аq) ADP(aq) + HPO, (aq) for which AG;ixn = -30.5 kJ/mol at 37.0 °C and pH 7.0. Calculate the value of AGrxn in a biological cell in which [ATP] = 5.0 mM, [ADP] = 0.10 mM, and [HPO;-] = 5.0 mM. kJ/mol rxn Is the hydrolysis of ATP spontaneous under these conditions? О yes no Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry | Publisher: University Science Books ?

[References] Cobra venom helps the snake secure food by binding to acetylcholine receptors on the diaphragm of a bite victim, leading to the loss of function of the diaphragm muscle tissue and eventually death. In order to develop more potent antivenins, scientists have studied what happens to the toxin once it has bound the acetylcholine receptors. They have found that the toxin is released from the receptor in a process that can be described by the rate law Rate k[acetylcholine receptor-toxin complex] If the activation energy of this reaction at 37.0°C is 26.2 kJ/mol and A= 0.850 s', what is the rate of reaction if you have a 0.400-M solution of S receptor-toxin complex at 37.0°C? (Enter your answer to two significant figures.) Rate mol/L s Submit Answer Try Another Version 10 item attempts remaining 12:45 PM arch 12/6/2021

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How many Calories should there be in three grams of pure sucrose?A.4B. 12C. 18D. 8E. None of the above.

Lauric acid, the major component of virgin coconut oil, is a carboxylic acid whose condensed structural formula is CH3(CH2)10COOH. That is, it is a carboxylic acid that has a 12-carbon hydrocarbon chain. Lauric acid molecules when dispersed in water would tend to primarily because that __. O aggregate; would decrease the entropy of decane molecules O aggregate; would increase the entropy of water molecules O separate; would increase the entropy of decane molecules O separate; would decrease the entropy of water molecules

BIOC 384 3-4 sentence for each answer please! Write the answers in your own words. Introduction to Biochemical Principles Q1.1- Hierarchical organization and chemical complexity can be exemplified by the Saguaro desert as the ecosystem. Provide an example for each of the other six hierarchies leading up to this ecosystem. Energy Conversion Processes Q1.2- The Second Law of Thermodynamics states that all spontaneous processes in the universe tend toward the dispersal of energy in the absence of energy input, which leads to death for a living organism. What are the two sources of energy for an autotroph over a 24 hour period and what are the chemical processes involved in each? Structure and Function of Water Q1.3 - Planetary scientists are searching for planets with water because it will support our chemical life. Name three properties that make H2O uniquely critical to life on Earth.

What is the name of the process shown below and how does it work (be specific about what happens to the molecules involved)? Which class of biomolecules (protein, lipid, carbohydrate, nucleic acid) are involved in this particular reaction example? List at least 2 types of functions this class of macromolecules might be involved in biologically. CH₂OH CH₂OH CH2OH CH₂OH НО ОН он ОН н ОН OH ОН Н + H2O → HO ОН ОН н OH + НО ОН ОН Н ОН

For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last colum Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O AS 0 both at 37.°C. not enough O information O AS 0 water and 250. mL of brine (very not enough information salty water). O AS 0 pressure kept constant at 2 atm both at 2 atm and 22°C. not enough information Explanation Check 02022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessi IA 99+ to search

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The overall reaction energy (gibbs enegy) is negative How could you explain the favorability of the reaction in terms of enthalphy and entrophy?

The solubility of Ag,CO, in water at 25 °C is measured to be 0.035 Round your answer to 2 significant digits. ☐ Use this information to calculate Ksp for Ag2CO3.

Calculate the change in entropy round your answer to three significant digits and be sure it has the correct unit symbol

3. For the following reactions, ldentify the unknown, the ?, and circle the change for each of the energy systems. Changes in the Strong Energy Interaction are determined by the net amount of bounds broken or formed and changes in the Electric Energy are determined by the separation of like charges. i. 6429Cu → 6428NI + ? + V a. The unknown "?" is b. PEelectric: increases, decreases, no change c. PEstrong: increases, decreases, no change d. Energy: Exothermic e. Mass: increases, decreases, no change ii. 189F + ? → 1830 + v a. The unknown "?" is b. PEelectric: increases, decreases, no change c. PEstrong: increases, decreases, no change d. Energy: Exothermic e. Mass: increases, decreases, no change

A bicyclist is stopped at the entrance to a valley, as sketched below: F B Where would the bicyclist have the highest potential energy? |(choose one) Where would the bicyclist have the lowest potenti energy? (choose one) v Where would the bicyclist have the highest kinetic energy? (choose one) ♥ Where would the bicyclist have the highest speed? |(choose one) v Would the bicyclist's kinetic energy be higher at A or B? |(choose one) Would the bicyclist's potential energy be higher at A or B? (choose one) Would the bicyclist's total energy be higher at A or B? (choose one) Suppose the bicyclist lets off the brakes and coasts down into the valley without pedaling. Even if there is no friction or air resistance to slow him down, what is the farthest point the bicyclist could reach without pedaling? (choose one) ▼

As partial pressure of an ideal gas approaches 0 the chemical potential approaches A. Approaches negative infinity B. Approaches zero C. Approaches the value of the standard chemical potential  D. Approaches one

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b ack C Chrome File Edit View History Bookmarks Profiles Tab Window Help Neuroscience Majo X ● ● ← → с My Drive - Google | X esc 17.4 Solubility and... ! 1 Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide, like this: 3 NO₂(g)+H₂O(1)-2 HNO3(aq)+NO(g) 18.3 Gibbs Free E... O KINETICS AND EQUILIBRIUM Calculating an equilibrium constant from a heterogeneous... Explanation Q A www-awu.aleks.com/alekscgi/x/lsl.exe/10_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInICzlAf0OkuQp6C7cqj0bpH_eGb9DAN... ☆ 18.5 Gibbs Free E...Reading Schedule 19.6 Reduction Po... Y SOLUTION: The le... Math 115 W-S Fall... compound amount NO₂ 19.3 g H₂O 212.3 g HNO3 18.4 g NO 21.1 g Calculate the value of the equilibrium constant K for this reaction. Round your answer to 2 significant digits. K.-0 Neuroscience Pers: X N @ At a certain temperature, a chemist finds that a 5.6 L reaction vessel containing a mixture of nitrogen dioxide, water, nitric acid, and nitrogen monoxide at…

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The hydrolysis of ATP to form ADP requires energy to break the bonds initially, but releases moreenergy as bond are remade making the reaction exothermic overall. The Gibbs free energy for thisreaction is -30.5 kJ/mole, meaning that it is also exergonic (ΔG=-). This energy can be used by otherbiological systems if this reaction is coupled with another less favorable one. In this case, the creation ofglucose-6-phosphate, C6H10O9P, this is a pivotal intermediate in many biochemical pathways. PO43- + C6H12O6 ⇌ H2O + C6H10O9P           ΔG° = +13.8 kJ/moleATP + H2O ⇌ ADP + PO43-                            ΔG° = -30.5 kJ/mole A) What is the overall reaction that takes place? B) Calculate the ΔG° for this reaction C) Will this be a successful coupled reaction?