What is the pH of a solution that is 0.20 M potassium cyanate, KCNO and 0.16 cyanic acid HCNO? The Ka for HCNO is 3.5x10-4. You do not need to solve the quadratic equation for this problem. Express your answer to two decimal places.

Q: Calculate (H30+] for a solution with a pH of 7.59. Express the concentration using two significant f...

A: Given, pH of the solution = 7.59 [H3O+] = ? The formula used here is pH = -log[H3O+] [H3O+] = 10-pH

Q: Calculate the solubility (in M) of cobalt(11) hydroxide, Co(OH)2(s) in H2O. Kp 3.80x1016 at a specif...

A: Given, the Ksp of cobalt(II) hydroxide = 3.80×10-16 We have to calculate the solubility of cobalt(II...

Q: 4 6 7 8. 10 11 12 13 Complete the table below. Round each of your entries to 2 significant digits. Y...

A: Acid are those which release H+ ion and form conjugate base.  Base are those which take H+ ion and f...

Q: In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reaction...

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Q: A gas expanding against a constant pressure of 2.00 atm from 15.0 to 21.6 L absorbs 350 calories of ...

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Q: During the decomposition of CaO2(s) into Ca(s) and O2(g), 100.0 mL of gas is collected by the displa...

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Q: When optically active (S)-2-methylcyclopentanone is treated with aqueous base, the compound loses it...

A: In the given step OH- takes proton to form enolate ion 

Q: What is the pH of a 2.22 molar solution of NH4Cl(aq)? The Kb for NH3 is 2.7 x 10-5. Report answer wi...

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Q: Draw the structure of the major organic product(s) of the reaction. OH • CH,OH NaOCH . You do not ha...

A: Carboxylic acid reacts with alcohol in the presence of acid or base catalyst to form an ester. The r...

Q: P Question // Q 10) Find the value of the equilibrium constant expression. Fe3+ SCN- FESCN2+ 1.3 x 1...

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Q: 3.50 g of PH3BCI3(s) decomposes completely at 275°C in a 6.50 L, sealed vessel, initially under vacu...

A: The balanced equation for the decomposition reaction of PH3BCl3(s) is: PH3BCl3(s)  ---> PH3(g) + ...

Q: How many moles of acetate ions are pre your answer to four significant figures.

A:   1. number of moles can be calculate by  Number of moles (n) = Given mass/ molecular mass    2. Mol...

Q: Calculate the concentration of PCI5 in the given reaction at equilibrium at 78C. PC|3(g) + Cl2(g) PC...

A: Given- PCl3+ Cl2 <->PCl5 Kc = 3.572 × 104 At equilibrium - [PCl3] = 0.302 M [Cl2] = 0.226 M  

Q: 4. Two tanks are connected by a closed valve. Each TANK A tank is filled with gas as shown in the gi...

A:

Q: Explain the compounds/ions present in solution when: 0.050M HNO3 is mixed with 250mL of water 0.050...

A: HNO3(aq) is a strong acid, whereas NH3(aq) is a weak base. 

Q: Use Hess's Law to calculate the heat of formation of CO(g) given the following information: C(s) + O...

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Q: a. H,PO.(aq) + Fe(NO,)2(aq) → O H,PO,(aq) + Fe(NO,)2(aq) → HNO3(aq) + Fes (PO.)2() Rule 6: Most phos...

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Q: NABHA PCC OCH CH,OH CH;Cl2 1) LIAIH. ether 2) H,0 2. PCC LOCH3 CH,CI, 1) DIBALH, ether H+ 3. OCH3 2)...

A: ->NaBH4 is reducing agent but can not reduce ester. ->PCC can oxidize alcohol to carbonyl comp...

Q: How many mL of 55% by mass ethanol (density =0.952) is needed to mix with 620 mL of 70% by mass etha...

A: Given,  The volume in mL of 55% by mass ethanol (density =0.952) is needed to mix with 620 mL of 70%...

Q: A 25.0-mL bubble is released from a diver’s air tank at a pressure of 4.00 atm and a temperature of ...

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Q: + COz cg) 3:) Use the following thermo chemical equation to solve the problems that fro llow. 7 CaO ...

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Q: 1.0 M aqueous solutions of the following substances are prepared. Which one would you expect to have...

A: Given 1.0 M aqueous solutions of  NaOH  CH3CH2OH (ethanol)  KBr CH3COOH (acetic acid)  HClO4 We need...

Q: OH 7.

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Q: Identify the battery that is in most automobiles. NiCad battery lithium-ion battery fuel cell lead-a...

A: Automobiles are of various kinds and hence the kind of batteries used in automobiles will also be of...

Q: Calculate the standard entropy change for the reaction at 25 °C. C;H,(g) + 50,(g) • 3 CO,(g) + 4 H,O...

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Q: Identify the functional group of the given molecule and indicate the classification if there is any....

A: The given structure is:

Q: Which of the methods shown will successfully complete the following synthesis? HO, NH 1) 3) 1) PBr3 ...

A: Some details about reagent used,   H2CrO4 oxidise primary alcohol to corboxylic acids. PCC oxidise p...

Q: 41-50. When exactly 750.0 mL of a solution containing 0.5840 N of magnesium hydroxide was combined w...

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Q: Calculate the solubility (in g/L) of CaSO,(s) in 0.450 M Na, SO, (aq) at 25°C. The Ksp of CaSO, is 4...

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Q: Calculate the theoretical ph of each solution a. 0.200M sodium bicarbonate (carbonic scid: pka1= 6.3...

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Q: In your own words, differentiate between an endothermic and exothermic reaction in one complete sent...

A: In this question, we have to differentiate between an endothermic and exothermic reaction in one com...

Q: Provide the IUPAC name for: HO NO,

A: The IUPAC name of the above compound is given below

Q: * 00 Ili Σ | A 0.00100 mol sample of Ca(OH) requires 20.00 mL of aqueous HCI for 2. neutralization a...

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Q: Which of the following carbaxylic acid derivatives are present in che molecule shown? CI 1. Lactone ...

A: In this question, we have to identify the carboxylic acid derivatives present in the shown molecule.

Q: The solubility of lead(II) iodide is 1.39 x 10-3 mol/L at a certain temperature. What is the solubil...

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Q: Consider the reaction 2 S(g) + 3 O2(g) → 2 SO3(g). Using the standard enthalpies of formation listed...

A: standard enthalpy of formation of SO3(g) = -395.7 kJ/mol standard enthalpy of formation of O2(g) = 0...

Q: It takes 2.1 ml of 1.00M NaOH (aq) stock solution to reach the second equivalence point in a titrati...

A: To reach the 2nd equivalence point, we need two times the total moles of phosphoric acid, H3PO4 avai...

Q: We prepare a solution with the following ion concentrations: (Pb2] = 1.0x10 M and [Cl] = 0.1 M. If k...

A: Solubility Product (Ksp) is the dynamic equilibrium that exists when a chemical compound in solid st...

Q: AP Questions // Questions 10 - 11) A student creates four solutions with varying concentration of Fe...

A: According to Lambert Beer's law,  Absorbance is directly proportional to the Concentration of the sa...

Q: Molarity Data Table: Moles of Molarity solute added to 300 mL. Molarity of CuSo, of NICI; Molarity M...

A: for the calculation of molarity: Find the number of moles of solute dissolved in the solution. Fin...

Q: A buffer was prepared by mixing 1.00 mole of ammonia (Kb = 1.8x10-5) and 1.00 mole of ammonium chlor...

A: We have to predict the pH of the solution.  

Q: Identify the functional group of the given molecule and indicate the classification if there is any.

A: group of atoms responsible for the characteristic reactions of a particular compound.

Q: What is the pOH of an aqueous solution of 0.277 M hydrobromic acid? pOH =

A: Given, 0.277 M HBr  acid.....

Q: The molar heat capacity of a diatomic molecule is 29.1 J-K-1.mol-1, Assuming the atmosphere contains...

A: Heat energy released or consumed in a process is given by the following equation. Q = n×c×ΔTwhere,Q=...

Q: Gamma radiation has frequencies in the 1020 Hz range. What is the wavelength in meters of gamma radi...

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Q: A 1.007 g sample of an unknown gas exerts a pressure of 715 mmHg in a 452 mL container at 23 ̊C. Wha...

A: Given :  Mass of gas = 1.007 g  Pressure = 715 mm Hg  Volume = 452 mL  Temperature = 23°C  To calcul...

Q: Differentiate sweet molecules in Column A using the criteria in column B. Acesulfame-K and Aspartame...

A: The above molecules are various artificial sugars that are used now a days.

Q: What is the wavelength in nanometers of photons with an energy of 50.8 kJ/mol?

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Q: Mg + Fe + Mgo Type of reaction: + 02- O'H Type of reaction: <--- 'Osqd PBSO3 + O2 Type of reaction:

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost...

Q: 0. Toilet bowl cleaners often contain hydrochloric acid to dissolve the calcium carbonate deposits t...

A: Given that,  Mass of HCl = 5.8 g  We need to find the mass of CaCO3 in grams that can be dissolved b...

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.