What number of molecules (or formula units) are present in 1.80 g of each of the following compounds? O H ON а. molecules O H N b. molecules с. (NHA), Сr,О, formula units

Q: 12) Solid chromium reacts with aqueous copper (II) nitrate to produce chromium (III) nitrate and sol...

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Q: Hexamethylenediamine (C6H16N2) is one of the starting materials for the production of nylon. It can ...

A: Adipic acid reacts with ammonia and hydrogen to form hexamethylenediamine and water. The equation fo...

Q: Question 4 459 C of charge is passed through a solution of AICI3(aq). Determine the number of moles ...

A: Given data  : Charge = 459 C Faraday's constant = 96485 C/mole e-

Q: 6.95 M solution of C12H22O11 is dissolved in water. What is its boiling point?

A:   Molarity = 6.95 M For very dilute solution,  Molarity(m) = Molality(M)= 6.95 m Boiling Elevation c...

Q: The Schrodinger equation for a moving particle in 1-D is given by h d'w -+Vụ = Ey 2m dx where h is t...

A: Schrodinger equation for a moving particle in 1-D:  

Q: Calculate the molarity of 81.0 g of HCl in 1.50 L of an HCl solution.

A: Given: Mass of HCl = 81.0 g. And volume of solution = 1.50 L.  

Q: 1) Consider the following 5 compounds: NH2 H3C- -H- NHh = white Cos H=red NH2 NH2 NH2 COOH H- -COOH ...

A: A question based on stereochemistry of organic compounds that is to be accomplished.

Q: Part A A compound of X and Y isX by mass. The atomic mass of element X is the atomic mass of element...

A: Let us assume the empirical formula of the compound will be XaYb  X = 3/4 Y The compound is 2/3 X by...

Q: Concentration Initial Final Volume Mass percent of acetic acid of Heinz volume Volume(mL) (mL) of in...

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Q: 2H2 + O2 --> 2H2O + 245kJ How many kilojoules of heat are produced when 23.0g of O2 react with hydr...

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Q: An aqueous sodium chloride solution is electrolyzed using a current of 4.42 A. How much time (min) i...

A: An aqueous sodium chloride solution is electrolyzed using a current of 4.42 A. How much time (min) i...

Q: 1.) NH3(g) and HCI(g) react to form the iconic solid NH4CI(s). Which substance is the Bronsted- Lowr...

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Q: 28.2 g NO2 Express your answer in moles to three significant figures. ΑΣφ mol NO2 Submit Request Ans...

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro n...

Q: Given the following reactions, calculate AH for Mn + O2 MnO2 3 MnO2 + 4 AI 3 Mn + 2 Al2O3 AH = - 179...

A: ΔH for the given reaction can be obtained using Hess's law.  Hess's law states that the overall enth...

Q: Calculate the concentration of acid in each buffer solution. The pKa of acetic acid is 4.745.

A: Total volume of solution = volume of HIn sample + (Volume of acetic acid + volume of acetate)       ...

Q: Maleic acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.367 mole...

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Q: Recent use and development of perfumery

A: Perfume is an ancient art that is fairly slow to develop, despite major technological advances such ...

Q: Give 2 identity test for Orange II Dihydrate and provide the following: regeants used mechanism of...

A: The atomic recipe of the synthetic mixtures depend on the sort of components present in them , their...

Q: I Revie Part A What is the concentration of K* in 0.15 M of K2S? Express your answer to one decimal ...

A: Given-volume=650mL = 0.650L  Concentration of Na^+=0.5M

Q: Explain the mechanism of analysis of sulfate gravimetrically in [Cu(NH3)4]SO4.H2O complex and determ...

A: For the gravimetric determination of sulfate ion in [Cu(NH3)4]SO4.H2O complex, we have to separate a...

Q: grams of

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Q: Write the chemical reactions whose equilibrium constants are Kp and Ką for imidazole (C,H,N,) and im...

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Q: 38.3 g KNO3 Express your answer in moles to three significant figures. mol KNO3 Submit Request Answe...

A: Given,  Mass of potassium nitrate(KNO3) = 38.3 g Number of moles of KNO3 = ? 

Q: Part A A compound of X and Y is X by mass. The atomic mass of element X is the atomic mass of elemen...

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Q: The Kjeldahl method was used to determine the nitrogen content of a soil sample. 25 g soil sample wa...

A: Solution: We know Kjeldahl method is used to determine the nitrogen content of the any sample. Overa...

Q: How many H20 molecules are there in 3 moles of H20 sample? O 6.02 x 1023 molecules O 2x 6.02 x 1023 ...

A: Given: Moles of water, H2O = 3 mol.  

Q: Write the molecular equation for the neutralization of NaOH(ag) solution by aqueous perchloric acid....

A: Given - Reaction between NaOH(aq) and Perchloric acid.  

Q: If the pH of a solution is 3.3, then the pOH is [ Select ] and the solution is [Select ]

A: Given that, PH of solution=3.3 POH=? nature of Solution=?

Q: The percent by mass of nitrogen for a compound is found to be 63.7%. Which of the following could be...

A: Given -> Percent by mass of nitrogen = 63.7%  

Q: A student ran the following reaction in the laboratory at 1082 K: 2 S03 (g)=2 SO, (g) + 02 (9) When ...

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Q: Calculate the pH of a 0.00646 M solution of nitric acid. Express your answer to the correct number o...

A: Nitric acid is strong acid

Q: For the reaction: CS2(g) + 2 H2S(g) CH4(g) + 4S(s) AH = -175 kJ and AS = - 495J/K a. At what tempera...

A: For a reaction to occur spontaneously, delta G should be less than 0

Q: Determine enthalpy of activation, entropy of activation, free energy of activation (25 degC)

A: Given:  

Q: Classify the relationship between (2R,3R)-2,3-dibromohexane and (25,3S)-2,3-dibromohexane. Constitut...

A: What is the relation between both compound -

Q: 3Cl2 + 2N2N2 → 2N2Cl3N2Cl3 Molar masses: chlorine gas = 70.9 g/mol nitrogen gas = 28.02 g/mol dini...

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Q: Write the chemical reactions whose equilibrium constants are Kp and Ką for imidazole (C,H,N,) and im...

A:

Q: What will be the main product of the reaction. Give detailed solution in clear handwritten!

A: Friedel-Craft alkylation reaction: When the benzene reacts with an alkyl halide in presence of Lewis...

Q: Calculate potentials after the addition of 10.00, 25.00, 50.00, and 50.10 mL of the reagent. Where ...

A: (b) 50.00 mL of 0.1000 M [Fe(CN)6]4- with 0.05000 M Tl3+ To Calculate potential after the addition o...

Q: A solution contains 12.6 g of non-volatile C10H160 in 87.2 g of benzene, C6H6. The vapor pressure of...

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Q: A chemist prepares a mixture of ethanol and water at a temperature of 23.0 °C. He measures out 38.5 ...

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Q: H3C, CH3 H3C N. HN. HO, N. N. ČH3 ČH3

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Q: True or False 1.) The phase diagram of a pure solvent shows a lower freezing point compared to solu...

A: Given Statement  1.) The phase diagram of a pure solvent shows a lower freezing point compared to so...

Q: Calculate the pH of an aqueous solution that contains 0.0060 M concentration of a certain acid (pKa ...

A: Given- Concentration of acid = 0.0060M pKa = 4.40    

Q: What is the pH of a 0.200 M solution of sodium acetate?

A:

Q: In the titration of HF with NaOH, which species are present at the equivalence point? HF, NaOH, and ...

A: Titration of HF with NaOH   

Q: How many moles of KClO₃solid must be reacted according tothe following balanced chemical reaction to...

A:

Q: Classify the relationship between (2R,3S)-2,3-dibromohexane and (2S,3S)-2,3-dibromohexane. O Identic...

A: Option D is correct answer Diastereomers

Q: 5. Using the following data, calculate the equilibrium constant at T=1500 K for the reaction H2 (g) ...

A: Given data:

Q: Consider the weak acids below and their corresponding Ka values. Rank the acids from weakest to stro...

A: Given Ka values: HNO2: (Ka = 4.0 x 10-4 ) HIO : (Ka = 2.0 x 10-11 ) C6H5COOH : (Ka = 6.5 x 10-5 ) Mo...

Q: Using the Gibbs-Helmholz equation: a. Explain how a reaction could always be spontaneous. b. Explain...

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".