Please calculate the Ka for a weak acid given the following data: pH = 6.84, and an initial acid concentration of 1.43 x 10* M (note: please express your answer with 3 sig figs.; the equilibrium reaction is shown below:) НА (аq) + H,0 () H,O* (aq) + A (aq)

Q: x+ Home X CHE101 02: Intro to General Che x X 101 Chem 101 My Questions | bartleby app.101edu.co…

A: The given reaction is as follows:

Q: QUESTION 22 For the Claisen condensation, which step is irreversible? O O O OCH3 nava and submit.…

A: mechanism of the Claisen reaction involves three steps which are enolate formation, nucleophilic…

Q: To what volume should you dilute 139 mL of an 6.85 M CuCl₂ solution so that 51.5 mL of the diluted…

A:

Q: 3. Describe how AS and AH° will be calculated from a plot of In(Ksp) vs. (1/T).

A: Gibbs free energy can be expressed in terms of Ksp of a salt. The expression is as follows:…

Q: An incomplete Lewis structure is shown below. The structure only shows the atoms and how they are…

A:

Q: To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.210M silver…

A: We have to tell what type of reaction is given, and tell due to element, it is classified that type…

Q: www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IQUHIQg6bJxmeSyVPHOEB1plef9xyC5Ca9QIIXeFeRg…

A: Higher the atomic number or collective atomic mass, higher will be its priority. Thus priority of…

Q: www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-lisiMBgkyhvITCeeBZbufuBYTi0Hz7m7 eams Word…

A: Step 1: Step 2: Step 3: Step 4:

Q: Problem 6.146 - Enhanced - with Feedback 1 of 15 HCI SCI2 NH3 CF4 CHC LiCI Dipole-dipole attractions…

A: The forces of attraction (or) repulsion that acts among the neighboring particles are intermolecular…

Q: Q3. Predict the products for the following reactions. KMN04 i) heat он co; (gas) Mg CH2CI iv) i) H,C…

A: (3)  (i) When cyclohexane derivatives treated with potassium permanganate, then there is no…

Q: Calculate the amount of heat needed to boll 28.6 g of octane (CH₁g), beginning from a temperature of…

A: Given: 28.6g of Octane at -51.2 °C

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 438.0 mg sample…

A: The given data contains, mass = 438 mg = 0.438 gInitial temperature =19.3°C =292.3 KFinal…

Q: Understanding the difference between a molecular and empiric... What are the molecular and empirical…

A:

Q: Setting up the math for a one-step quantitative problem The average adult heart pumps about 84. mL/s…

A:

Q: Select true or false for each of the following. Heat and temperature are the same thing. Energy can…

A: 1. Heat is measure of energy while temperature is measured of degree of hottness and coldness of…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Given :

Q: A chemist adds 125.0 mL of a 2.9 x 10 'M mercury(I) chloride (Hg,Cl,) solution to a reaction flask.…

A: For Hg2Cl2 Solution : Volume = 125 mL              = 0.125 L Molarity = 2.9 × 10-7 M…

Q: A sample of an unknown compound is vaporized at 200. °C. The gas produced has a volume of 1110. mL…

A:

Q: Why is it necessary to allow enough time for your samples to dry?

A: during the organic synthesis, product may contain the impurity due the presence of the solvent

Q: Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. Three…

A: 25. Given that : We have to give the proper symbols of the following elements along with their…

Q: A reaction bétween liquid reactants takes place at 18.0 °C in a sealed, evacuated vessel with a…

A: T = 18oC = 18 + 273.15 = 291.15 K volume = 50 L mass of dinitrogen monoxide gas = 10 gmolar  mass =…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A: Given : mass of water = 3 kg

Q: Arrange the following from lowest to highest entropy: SiO2(s), SiBr4 (4), SICI, (g), SiC(s). Assume1…

A: Given that : We have to arrange the following in order of increasing entropy : 1. SiO2(s) 2.…

Q: Consider a 214.6 g sample of the compound manganese(IV) perchlorate. Using the formula Mn(CIO), (MM…

A:

Q: Com X Bb Mas X Mas X Hom X K! Kahx Exan X K! Kah X Mitc X КI Kah X K Kah x K! Kah x Kah x K Kahx C…

A: Dipole moment:The charge separation of the molecule produces dipole moment. Dipole moment arises…

Q: A technical machinist is asked to build a cubical steel tank that will hold 390 L of water.…

A: To calculate the smallest possible length of the tank that is having a volume of 390 L.

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.