If a 0.59 M solution of a monoprotic acid HA has a pH of 4.57, what is the Ka value of the acid HA?

Q: 18. Consider the following reaction which has a has Ke = 0.054 at a certain temperature: PCISG) = PC...

A: Given,  Value of concentration equilibrium constant = Kc = 0.054  Initial moles of PCl5 = 0.500 mole...

Q: Does the effect of intermolecular attraction on the properties of a gas become more significant or l...

A: Gases have negligible intermolecular attractions. The order of intermolecular attractions are in the...

Q: The protein content of the unknown samples were determined using BSA as standard. The absorbance val...

A: Given data for standard:

Q: If 20.0 g of H, reacts with 40.0 g of CuO which reactant is limiting?

A: Limiting reactant is the reactant which is present in less amount and is consumed first in the react...

Q: Be sure to answer all parts. For a certain reaction, the frequency factor A is 7.0 x 10° s and the a...

A: To solve this question, use the formula for rate constant which contains k, A, Ea and T terms in it.

Q: Please draw a curved arrow mechanism for the posted aldol reaction: H,C CH3

A:

Q: The concentration of a drug additive in an animal feed is 12.5 ppm. How many milligrams of the drug ...

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Q: d) A(n) reaction is one where the products have lower energy than the reactants. is a device used to...

A: (d) --> An exothermic reaction is one where the products have lower energy than the reactants. (e...

Q: write the nuclear balanced reaction for I-131 undergo a,a,ß,positron emission, y. And determine the ...

A: Write nuclear balanced reaction for I-131 undergo different emissions--

Q: Precipitates used in the gravimetric determination of uranium include NazU2O7 (MM = 634.0 g/mol), (U...

A: Calculate : which weighing forms having the greatest mass of precipitate from a given quantity of ur...

Q: What molar ratio of salt to acid would be required to prepare a buffer solution with a pH of 5.9? Th...

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the ...

Q: needs to synthesize 2-pentanone from 1-butyne. help her by suggesting a synthetic scheme she has to ...

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Q: OH

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Q: 24. The oxidation number of phosphorous in the phosphate anion, PO43 is; а. -3 b. +3 с. +5 d. -5 e. ...

A:

Q: 10. An ore containing magnetite, Fe304, was analyzed by dissolving a 0.9859-g sample in concentrated...

A: Answer: This question is based on stoichiometric calculation where we have find out the number of mo...

Q: 7. Identify the element Xwhich forms a polyatomic ion with the following Lewis Structure? [:CI-X-Cl:...

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...

Q: For the cell: Al | Al+3 || Cu2+ | Cu Calculate E for the cell where [Cu*2] = 0.17 mol/L and = 0.27 m...

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Q: The rate of a certain reaction is given by the following rate law: rate = k[NO]°[0,] Use this inform...

A: Order of reaction is the power raised to the concentration.

Q: Explain in a few sentences and/or with a diagram all conditions that must be met for a chemical reac...

A: The solution is given below - 

Q: Chloroform liniment contains 30% (v/v) of chloroform. How many mL of chloroform liniment can be prep...

A: Chloroform liniment contains 30% (v/v) of chloroform. 1 lb = 454g

Q: Substantiate the following: (i). Cyclopentadienyl anion is stable (ii) Cyclopropenyl cation is stabl...

A: Rules For Aromaticity Molecule must be cyclic. Every atom in the ring must be conjugated. Molecule ...

Q: 9. The % w/w of I- in a 0.2144-g sample was determined by Volhard titration. After adding 50.00 mL o...

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Q: Which acid would be best to use when preparing a buffer with a pH of 4.77? A list of K, values can b...

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Q: A student dissolves 12.3 g of potassium chloride (KCl)in 250. g of water in a well-insulated open cu...

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Q: Solve it asap

A: Suppose a solution contains 0.28 M Pb2+ and 0.50 M Al3+ . Calculate the pH range that would allow Al...

Q: Calculate the Mg (OH) 2 content of MOM, 13.2 g of which was dissolved in 55.00 mL of 1.2642 N H2S04 ...

A: Mg(OH)2 is first reacted with H2SO4. The excess H2SO4 is then reacted with NaH.

Q: Explain how a polyamide is able to bind to minor grooves and disrupt transcription.

A: Polyamide is a polymer in which a repeating unit is an amide group with a general chemical formula C...

Q: For the reaction CO (g) + H2O (g) → CO2(g) + H2 (g), calculate the following reaction's thermodynami...

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Q: excess reactant

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Q: Complete the table below. Round each of your entries to 2 significant digits. You may assume the tem...

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Q: Why is adding mineral oil necessary during process of esterification?

A: A mineral acid catalyst is generally needed to make the reaction occur at a very useful rate. Esters...

Q: 14. 15. Ha PO 16. Br Br (BuONa (2 equiv) t-BUOH heat 17. HO 312 NO2 O2N

A:

Q: Scientists determine the quantity of atmospheric sulfur dioxide (SO, ), a large contributor to acid ...

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Q: Why is the concentration of the water neglected in the rate law for the reaction studied in this exp...

A: Generally the terms involved in equilibrium expression should undergo change in their concentration ...

Q: heat i

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Q: Why are the boiling points of immiscible mixtures lower than the boiling points of the two individua...

A: Boiling point is the temperature at which the vapor pressure of liquid become equal to the external ...

Q: What metal ion is responsible for the red firework?   Street lights are yellow/orange in color and n...

A: What metal ion is responsible for the red firework?   Street lights are yellow/orange in color and n...

Q: What volume of a 0.470M HCl reacted with enough Zn metal to produce 1.50 g ZnC12 based on the follow...

A: Given mass of ZnCl2 = 1.50 gram Molar mass of ZnCl2 = 136.39 g/mol  

Q: What is the change of internal energy in J of a system that releases 675 J of heat and has 875 J of ...

A: According to first law of thermodynamics, we have : dU = q + w  ----(1) Where dU is change in intern...

Q: Which alkyl bromide(s) can form the alkene under E2 elimination conditions

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Q: 1. Consider the equilibrium N2O4g) 2NO2G) AH°xn 58.0 kJ In which direction will the equilibrium shif...

A: According to Le-chatelier's principle, when any type of stress is applied at equilibrium then equili...

Q: What is the pH of a solution that is  0.41 M in sodium acetate and 0.65 M in acetic acid? (for aceti...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: 4. Calculate the molar concentration of oxygen in water at 25°C for a partial pressure of 0.22 atm. ...

A: The formula used is:-  C = KH P  Where C = concentration  KH = Henry's constant P = pressure 

Q: Calculate for the theoretical and percent yield. Please show detailed calculations

A: To Calculate for the theoretical and percent yield.,

Q: X= muclaophile 3. C-C-2-e + ビメ → + HX > what in the diterence? 00 ニ- 2HaC 0ー ーとーロH +N-Cビ-0H → N-C-と-...

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Q: 7. The separate samples of nitric and acetic acids are both titrated with a 0.100 M solution of ...

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Q: One gallon of certain lotion contains 946 mL of benzyl benzoate. Calculate the percentage (v/v) of b...

A: Solution - According to the question - Given - One gallon = 3.8 liter 3.8 liter contains 946 mL of b...

Q: Some unknown compound reduces the freezing point of benzene from 5.53 to 4.80˚C. What is the molalit...

A: Molality of a solution can be defined as number of moles of solute dissolved per kilogram of solvent...

Q: Write the reaction rate expressions for the reaction below in terms of the disappearance of the reac...

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Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.