moles

Q: The following reaction is exothermic. Which change will shift the equilibrium to the left? 2S02(g) +...

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Q: In the reaction between 7.0 moles of Na and 4.0 moles of Chlorine, to produce NaCl, which of the two...

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Q: Nitric oxide, an important pollutant in air, is formed from the elements nitrogen and oxygen at high...

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Q: Charles Law

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Q: If a bonding orbital is gerade, then the antibonding orbital is:

A: In this question we have to choose correct of the above statement with suitable reason.

Q: A group of students were trying to experimentally determine the density of an unknown liquid. They d...

A: The data given is, And the volume of the liquid = 5.00 mL.  

Q: The molar mass of an unknown compound was determined in three repeat experiments. The molar masses o...

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Q: Determine the volume occupied by 88 grams of ethane (C2 H6) gas at STP 全 T 面 1 Upload files

A: Mass of ethane = 88 g 

Q: Concept Check: Photodissociation/Photoionization Sample Problem 4. The bond energy in N, is 941 kJ/m...

A: Bond energy of N2 = 941 kJ/mol  

Q: Addition of ammonium bisulfate In addition to the H,S already present in the flask, solid NH, HS is ...

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Q: Solve for the percentage composition of Phosphoric acid. Use the whole number value for the atomic w...

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Q: When the following molecular equation is balanced using the smallest possible integer coefficients, ...

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Q: Americium-241 is an isotope that is commonly used for household smoke detectors. Gamma radiation emi...

A: The energy and frequency of a radiation is related as - Energy = h * frequency where, h = Planck con...

Q: 7.596×10-4 mol of CF4(g) (tetrafluoromethane gas) is generated into a 131.0 mL headspace, at 25.0 °C...

A: Answer: This question can be solved using ideal gas equation which is the extended form of boyle's l...

Q: Question 9 The reaction C2H4 H2 C2H6 has an activation energy of 181 kJ mol and k = 2.5x10- M's at 5...

A: Activation energy of reaction = 181 KJ/mol = 181 × 103 J/mol Rate Constant,K1 = 2.5 × 10-2 M/s = 0.0...

Q: 1. Prepare a 2 M NaCl soln; 1000 ml final volume; MW = 58.5 grams

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Q: Packing Efficiency Since the layering pattern in all of the lattices leaves empty space between the ...

A: In a simple cubic unit cell, the atoms are present at the corners. In a Face centred cubic unit cell...

Q: A 0.7547 g sample of nicotine was analyzed and found to consist of 0.5588 g C, 0.06565 g H, and 0.13...

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Q: Draw the major organic product of the reaction of aniline with excess methyl iodide. Include any lon...

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Q: Mechanism of this reaction please!

A: Given enzymatic reaction is:

Q: Describe the ideas of the Ancient Greeks on the atom and elements;

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out o...

Q: What is the correct equation to calculate pH? Group of answer choices pH = −log[H+] pH = −log[OH−] p...

A: Correct equation to calculate pH = ? 

Q: if i were to determine ascorbic acid content of different plants using iodine titration, what should...

A: Introduction :  Ascorbic acid is a water soluble vitamin , in aqueous solution ascorbic acid is a re...

Q: .. gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous produ...

A: Reaction in which heat is evolved is exothermic while reaction in which heat is absorbed is endother...

Q: Consider the reaction: SO,Cl (g) = SO2(9) + Cl2 (9) K = 2.97 x 10° at 625 K In a reaction mixture at...

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Q: Gaseous butane (CH (CH,) CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: To find theoretical yield, first write balanced reaction with O2. Then balance that reaction and fin...

Q: explain how 1-octanol is insoluble with water but soluble with hexane?

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Q: Calculate the pH of a solution obtained by mixing 438 mL of 0.14 M  nitric acid with 385 mL of 4.8x1...

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Q: In the synthesis of sulfanilamide, an intermediate reaction using 5 g of acetanilide (MW:135.2, dens...

A: The percentage yield can be calculated by the theoretical yield and actual yield. It can be written ...

Q: An experiment is conducted in which a quantity of H2(g) is chemically generated in a closed headspac...

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Q: I need help explaing this mechanism  Diels-Alder Reaction between anthracene and Maleic Anhydride

A: The Diels-Alder reaction is one of the most useful reactions in all of organic chemistry. It is a 4+...

Q: POST-QUESTIONS 1. After a student dissolved 0.5 g of white solid in water, she tested the conductivi...

A: The statement given by her about the experiment is correct or not is given below with explanation.

Q: I need some help solving this problem: What is the spectroscopic terms of the electronic configurati...

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Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to Ba(IO3)2

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Q: Using the calculated experimental average density of the liquid samples as reference, what is the pr...

A: Density = (Mass ÷ Volume)  

Q: Question 2 The reaction 2NO2 2NO +O2 (K=0.50) is at equilibrium when PNO2=0.16 atm and PO2 = 0.22 at...

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Q: The change in the Gibbs energy of a certain constant-pressure process is found to fit the expression...

A: Thermodynamics is branch of chemistry in which we deal with heat gained or heat lost by system.

Q: What is the concentration of (OH] in this solution? Calculate your answer in M, then provide the exp...

A: Given data :-  

Q: he packing efficiency (in

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Q: Ionic liquids have a wide range of applications in many industry fields. Explain by giving ONE exten...

A: Ionic liquid is a type of compound, which is composed of ions and has melting point below 100° C. Io...

Q: Consider the compound nitrogen triflouride, NF3 a. What is the electronic geometry of the molecule?...

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Q: In order to form Ba(1O3)2, 500 mL of 0.5000 M Ba(NO3), was mixed with 500 mL of 0.0500 M NalO3. • Ho...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: 2. Use the following information to answer the questions below: Density of carbon tetrachloride is 1...

A: Density of carbon tetrachloride = 1.584 g/cm3  1 cm3 = 1mL

Q: Problem 4. Each of the following reactions is displaced to the right. Make a list of all the Bronste...

A:                                  Answer  Bronsted acid :- Which species loss the proton is called Br...

Q: What volume of 0.7777 M HNO3 is needed in order to produce 200 mL of 0.1550 M HNO3?   12.24 mL   1...

A: Given data - - > M1 = 0.7777 M V1 =? M2 = 0.1550 M V2 = 200 ml We know that from the formula M1V1...

Q: If a 10.0 L balloon contains 0.80 mol of a gas, what will be the volume of a balloon that contains 0...

A: Given, Case - 1) Moles of a gas (n1) = 0.80 mol Volume of gas (V1) = 10.0 L Case - 2) Moles of a gas...

Q: H-bonding is present in carbohydrates and proteins. Given the following structures: (a) glucose, a m...

A: Hydrogen bonding is the interaction between a hydrogen atom located between a pair of other atoms ha...

Q: What is Keq for the two possible chair conformations? (cis-1,2-dimethylcyclohexane.) Explain how you...

A: Here we have to determine Keq value of two possible chair conformation cis-1,2-dimethylcyclohexane. ...

Q: Also known as absolute methods, these analytical methods rely on actual chemical reactions in order ...

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Q: For the following reaction, 10.3 grams of propane (C3Hg) are allowed to react with 21.3 grams of oxy...

A: Balanced reaction equation C3H8 + 5O2 ---- > 3CO2 + 4H2O Lets calculate the amount of the CO2 pro...

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.