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 with 2 places past the decimal point.

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

A: The functional group of the given molecule is 

Q: Part A Identify the Brønsted-Lowry acid, the Brønsted-Lowry base, the conjugate acid, and the conjug...

A: We need to identify the Bronsted Lowry acid, base and the conjugate acid and base for the given reac...

Q: A balloon flying a long distance contains 1.2 x 107 L of helium. If the helium pressure is 737 mmHg ...

A: Given, Pressure (P) = 737 mmHg = 0.97 atm Volume (V) = 1.2 × 107 L Temperature (T) = 25°C = (25 + 27...

Q: ng acid strength ( str

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Q: Magnesium phosphate is an ionic compound which is widely used in medication to support the relaxatio...

A: The formula of ionic compounds is written by following electrical neutrality principle, which states...

Q: Which reaction schemes is best to give the product? 2. HO. NO 2 O The following reaction scheme: Br2...

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Q: State

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Q: percent composition

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Q: I Review I Cor Part A MISSED THIS? Watch KCV 16.6, IWE 16.3; Read Section 16.6. You can click on the...

A: Given :  For solution 2 :  [OH-] = 3.8 x 10-7  For solution 4 :  pH = 7.15 

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: 1. For the reaction shown, find the limiting reactant for each: 4 Al (s) + 3 O2 (g) → 2 Al203 (s) a....

A: The specie which is present in less amount is the limiting reagent.

Q: Balance the equation below for the combustion of propane in a camping stove. Then answer questions a...

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Q: 10.1 Draw the major product(s) each reaction below. ROOR HBr hv or A ROOR hv or A b. HBr Li. NH,

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Q: Me HN From 2-Ethoxybenzoic acid 3. Pr O=S-N NMe

A: This is the synthesis of Viagra. It is a PDE5 inhibitor

Q: If 250.grams of sodium azide undergoes decomposition, how many grams of sodium are produced?

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Q: If 75.0 grams of water is heated from 32.6°C to 78.9°C, how many kilojoules of heat does the water a...

A: Given - - > Mass, m = 75 g Initial temperature, T1 = 32.6°C Final temperature, T2 = 78.9°C Specif...

Q: H3C CH3 H3C CH3

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Q: 0.05 Μ of a weak acid solution (HA) ionizes 0.2 percent in water. Find its acid dissociation constan...

A: Concentration of weak acid, c = 0.05 M Percentage ionisation = 0.2% x = 0.002    

Q: 6. Magnesium oxide can be produced by heating magnesium metal in the presence of oxygen. The balance...

A: The balance chemical reaction :  2Mg(s) + O2(g) ---> 2MgO(s)  Mass of Mg = 10.1 g  Mass of O2 = 1...

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

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Q: consider the following exothermic reaction at 0.00 °C and 1.00 atm Se04 (g) Se(g) + O2 (g) , Kc = 2....

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Q: 1. A solution was prepared by dissolving 1210 mg of K3Fe(CN)6 (MM=329.2 g/mol) in sufficient water t...

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Q: Syneresis is a process by which there is the loss of water trapped within the gel matrix through the...

A: Syneresis is process of extraction of water .

Q: What is the final organic product of the reaction sequence shown? 1) CH3O Na+ 2) CH2=CHCH,Br 3) CH,O...

A: Given starting compound is methyl acetoacetate. In the given reaction there are two alkylation take ...

Q: HCI ionizes completely and is irreversible. Why? Select one: a. CI- is a strong conjugate base,...

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Q: * 00 Aqueous potassium iodate (KIO_) and potassium iodide (KI) react in the presence of dilute hydro...

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Q: Aniline is an amine that is used to manufacture dyes. It is isolated as anilinium chloride, [C6H5NH3...

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Q: When does the value of Q = K? %3D

A: Given-> Q=Kc

Q: metal, or metal. Representative element (main Transition metal Inner-transition metal group element)...

A: Representative element ( main group element) - Se, At, Ra

Q: Write the formula for the conjugate acid of each of the following bases. Part D CO3²- Express your a...

A: Step by step solution are below

Q: Which reaction schemes is best to give the product? HO. NO2 O The following reaction scheme: CH3 KMN...

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Q: Which of the following diene(s) cannot undergo the Diels-Alder reaction? II IV

A: For a Diene to undergo Diels Alder rxn it should have cis double bond along single bond.

Q: A buffer solution is prepared by taking 0.438 moles of acetic acid (pKa=3.45) and 0.736 moles of sod...

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

Q: The reaction A(aq) + B(aq)= C(aq) + D(aq) has a AHrxn = -85 kJ/mol. This reaction is [Select ] If th...

A: Here the equilibrium reactions is given and we have to see the effect of temperature on this given e...

Q: Which best represents a step in the Claisen condensation? CH3 CH3 H3C CH3 1. H3C H3C H3CO CH3 CH3 H3...

A: abstraction of apha hydrogen by base for generation of nucleophile  attack of nucleophile to the sec...

Q: are spectator ions?

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Q: What is the ph of a 0.214 M weak base solution? The Kb of the weak base is 0.000033.

A: Given :-  Concentration of weak base = 0.214 M  Kb = 0.000033  To calculate :-  pH of solution 

Q: set up end up with an equilibrium concentration of [Fe(SCN)]2+ of 8.3x10-5 M. Based on these results...

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Q: Identify the correct structures in each step of the reaction sequence shown. 1) NaOCH2CH, CH3CH,OH 1...

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Q: A 20.83 mL sample of 0.55 M HCl is titrated with 0.55 M NaOH. Calculate the pH after the addition of...

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Q: Bronsted Lowry conjugate acid base

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Q: 1. Circle the substrate that will not result in a tertiary alkyl chloride when treated with HCI. A В...

A: In the given all three reactions, H —Cl is added. 

Q: a) NBS ROOR b) NBS ROOR c) NBS ROOR

A: NBS produces bromine radical and the order of stability of radicals is allylic>tertiary>second...

Q: A chemistry graduate student is given 100. mL of a 1.20M ammonia (NH solution. Ammonia is a weak bas...

A: 31 gm of NH4Br added to NH3 to make a buffer solution of desired pH.

Q: What mass of LP gas is necessary to heat 1.3 L of water from room temperature (25.0 °C) to boiling (...

A: 62.7 gm of LP will combust to heat water from 25⁰C to 100⁰C.

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: Part B Without consulting the table of acid-dissociation constants, match the following acids to the...

A: Given acids: H2SO4 H2S H2SO3 We have to match the Ka1 values with the given acids.  

Q: 3. Use the balanced equation below to answer questions a-d. 4 NH3(2) + 3 O22) 2 N2 + 6H2O a. How man...

A: To solve this problem we will use the given balanced chemical equation .

Q: How many moles of gas are in a gas sample occupying 0.738L at 135 mmHg and 30°C? O 190 mol O 4.01 mo...

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Q: Ammonia reacts with oxygen as follows: 4NH3(g) + 702(g) → 4NO2(g) + 6H2O(g) AH° = -1132 kJ Calculate...

A: 4 moles of ammonia on reacting with oxygen produce 4 moles of nitrogen dioxide gas and 6 moles of wa...