How much energy is evolved/absorbed (answer is  ___________ ) when 444 g of NBr3 is produced ?

Q: 2. are the percent compositions of the flue (dry basis) if the fuel is burned stoichiometrically? As...

A: The solution of the question is given below: The information given is:  C = 83 % H2 = 7% O = 5% S = ...

Q: Draw the chemical structure of 2-ethyl-N-

A:   Organic nomenclature is two ways 1. IUPAC name  2. Common name   IUPAC name is based on certain ru...

Q: Describe the steps in the reaction to make the following compounds • through the reduction reaction ...

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Q: The amino acid glutamine has ionization constants ?a1=6.46×10−3Ka1=6.46×10−3 and ?a2=1.00×10−9Ka2=1....

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Q: Determine

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Q: For the reaction pictured, the experimental enthalpy is -41.3 ± 1.3 kJ mol-1. When using the Gaussia...

A: The correct answer is given below

Q: 8. A 2.856-g sample of limestone was analyzed for Fe, Ca, and

A: A 2.856-g sample of limestone was analyzed for Fe, Ca, and Mg.

Q: 17.0 g of carbon dioxide gas is stored in a cylinder (a malfunctioned fire extinguisher) with a volu...

A: Given- Weight of carbon dioxide gas =17.0g Volume=15.0L Pressure=2.00atm R=0.0821 L.atm/(mol.K)  

Q: Dichloroacetic acid has a dissociation constant of K = 3.32 x 10-2. %3D Calculate the degree of diss...

A: Dichloroacetic Acid dissociates to Cl2CHCOO- and H3O+.  

Q: CI Н. CH,CH, CH,

A: IUPAC name -  (S)-2-Chlorobutane

Q: How many moles of carbon dioxide could be produced if 10 moles of octane, C gH 18, are combined with...

A: Given No. of mole octane = 10 moles  No. of moles oxygen= 20 moles  find no. of moles CO2     

Q: Describe the difference between solvation of ionic compounds and solvation of covalent compounds, Fo...

A: Ionic compound is made up of ions while covalent compound is made up of molecules. Compound which is...

Q: What would be the net ionic equation?

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Q: The area of an object is calculated from experimental data to be 24.6623 cm2. The t absolute error i...

A: ANSWER:-    We can determine the area  by using  Absolute error = Experimental data - Theoritical da...

Q: If the molecule XY, which has an enthalpy of ionization of 1,500 kJ/mol as per the reaction below, c...

A: Given the ionization enthalpy of the molecule, XY = 1500 kJ/mol First, we have to convert the ioniza...

Q: A student uses a balance with a stated uncertainty of #0.002 g to weigh a quantity of a reagent by d...

A: Empty beaker weight = 40.301 g Beaker + Reagent weight = 40.689 g

Q: Calculate AG°pxn for the following reaction at 449.0°C. CH20(g) 2 H2 (g) → CH4(g) H20(g) AH° = - 94....

A: Answer: Given data: ∆H°=-94.9kJ∆S°=-224.2J/KT=449°C

Q: A solution of 0.20 M hydrazoic acid, HN3, has a pH of (3.20x10^0). What is the Ka for hydrazoic acid...

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Q: A photon has a frequency of 8.95 × 10° Hz. What is the energy of this photon in Joules? (h = 6.626 ×...

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Q: The area of an object is calculated from experimental data to be 24.6623 cm2. The t absolute error i...

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Q: final temperature (in .°C) at 2. 30°C that

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Q: hat is the pH of a 0.080 M aqueous solution of methylamine, CH3NH2? The Kb for methylamine is 4.4x10...

A: Given : We have to calculate the pH.   

Q: 5B.11(a) The vapour pressure of pure liquid A at 300K is 76.7kPa and that of pure liquid B is 52.0kP...

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Q: What is the name of the product of the reaction sequence shown? Li CO2 H3O* H3C- Br Et20 O 3-methylb...

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Q: volume

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Q: I need the third sub part

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Q: Calculate the pH of a 0.42 M H,SO4 solution. Give your answer to 2 places after the decimal.

A: given, molarity of H2SO4 solution = 0.42 M

Q: Outcome 10- Bridge Assignment 1 Ring Naming/Aromaticity 1) Name these molecules: tor NH2

A: Since you have posted question with multiple subparts, as per guidelines we cannot answer more than ...

Q: Which structure is the most likely product of the reaction below? CHCI3, KOH -CI CI -CI -CI

A: CHCl3 form carbene with KOH then addition of carbene to double bond occur. ->Carbene added from t...

Q: An unknown compound B has the following spectra. Write the masses for the M+ , аnd (M+1)+ peaks. Rou...

A: Base peak having 100% intensity.. Molecular ion peak means peak of  unfragmented molecule...

Q: The higher the_ the more the acid dissociates. O Temperature Ка O pH О Kw

A: The higher the  _   the more the acid dissociates.

Q: Draw all of the expected products from the reaction shown. There should be three products. Two of t...

A: Given : We have to make products for the given reaction.

Q: Derive dos with A Cp. dT

A: Heat capacity of a system is defined as the amount of heat required to raise the temperature of the ...

Q: VSEPR theory predicts which shape for the molecular structure of the following molecules or molecula...

A: Valence shell electron pair repulsion theory, is a model used in chemistry to predict the geometry o...

Q: CH3 H;C.

A: ->For IUPAC naming first of all give numbering to the longest carbon chain. ->Here functional ...

Q: Question 8 The system has the least symmetry among the seven crystal systems. triclinic monoclinic r...

A: we need to tell which crystal system has least symmetry

Q: 1. Fe (s) + O2 (g) → Fe2O3 (s) 2. HNO3 (aq) + Mg (OH)2 (s) → Mg(NO3)2 (aq) + H2O (I) 3. SnO2+ H2 → S...

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per...

Q: What is the predicted product for the reaction shown? ÇI „NO2 NH NO2

A:

Q: For the mechanism of the reaction below, which of the following statements is true? CI HCI O A prima...

A: ->When alkene reacts with hydrogen halide first of all carbocation formed which rearrange to most...

Q: How much heat is evolved when 8.89x10° g of ammonia is produced according to the following equation?...

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Q: This is the same drawing as the previous question. This drawing represents a mixture of three differ...

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Q: When 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solutio...

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Q: net ionic equation

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Q: Draw all of the expected products from the reaction shown. Select Draw Rings More Erase H (2 equiv)

A: Reaction of anhydride with amine produces amide.

Q: Benzene alcohol IUPAC name: draw the structure:

A: Benzene alcohol is also referred as Aromatic alcohol. Chemical formula :- C6H5CH2OH

Q: What is the rate of disappearance of H2 from 0 s to 16 s? What is the rate of disappearance of O2 f...

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Q: In an esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditio...

A: In an esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditio...

Q: Which one of the following compounds will be least reactive towards a Friedel-Crafts reaction? O phe...

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Q: why is lcoe misleading in the comparison of different energy generation technologies

A: LCOE doesn’t consider all costs associated with an actual financial decision..   

Q: A technical machinist is asked to build a cubical steel tank that will hold 370 L of water. Calculat...

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.