Molarity

Q: why was ice bath and room tempertature used instead of hot bath?

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Q: At a certain temperature, 0.363 mol CH4 and 0.637 mol H₂S are placed in a 1.50 L container. CH₂(g) +…

A: The correct answer is given below

Q: What is the relationship between the following two molecules? НО -Н ОН ОН -ОН НО H н-он ОН Н -ОН O…

A: We have to find the relationship between these two molecules.

Q: Given the following data, determine the activation energy of the reaction (in kJ/mol). Reaction:…

A: We can calculate the activation energy by using the formula K= Ae-Ea/RT Where  K = rate constant A =…

Q: An unknown sample containing a mixture of NaCl and Na2CO3 was analyzed to determine the %…

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Q: Brian forgot to close the end of his capillary tube when he was conducting the boiling point…

A: The correct option is 'a', a. Brian did a great job in making sure that the experiment worked. It is…

Q: explain an energy level diagram for the reaction between zinc powder and copper sulphate

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Q: Draw the structure of the organic product of the following transformation. [1] EtNH₂, DCC OH [2]…

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Q: The gas in a 225.0 mL piston experiences a change in pressure from 1.00 atm to 3.95 atm. What is the…

A: Given,  Initial volume of the gas = V1 = 225.0 mL  Initial pressure = P1 = 1.00 atm  Final pressure…

Q: How do I calculate the numner of moles contained in this sample? 1.06 x 10 (to the 25th power) atoms…

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Q: From the following structures, select a reasonable resonance contributing structure for the molecule…

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Q: Given the data in the table below, AH, for the reaction rxn IF5 (g) + F2 (g) → IF7 (g) AHᵒf…

A: The standard enthalpy of formation is the enthalpy change of reaction in standard conditions when…

Q: a) Considering compounds 2a through 21, identify: ONE PAIR of geometric isom- TWO PAIRS of…

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Q: A hot pot of water is set on the counter to cool. After a few minutes it has lost 335 J of heat…

A: In this question, we will determine the heat energy gained by the surrounding.  You can see the…

Q: Given the following reactions 2NO → N₂ + O₂ AH = -180 kJ 2NO+ 0₂ → 2NO2 AH = -112 kJ the enthalpy of…

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Q: Q: What is the reason for the multiplicity of paths with different atoms?

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Q: Q4/ Six 25 ml volumetric flasks containing 2, 4,6, 8 and 10 ml of a standard solution containing 20…

A: We firstly need to determine the concentration of NiCl2 in each flask and then plot a calibration…

Q: Which of the following separation techniques is ideal to separate a solute from the solvent of a…

A: Extraction is the answer. In the extraction process the desired product is extracted from the…

Q: Molybdenum (Mo) is element 42 on the periodic table. A sample contains 7.31x1022 atoms of Mo.…

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Q: Table 2   Absorbance vs CoCl2 concentration   Test Tube Number Cobalt Chloride Concentration…

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Q: Determine the enthalpy for this reaction: Express your answer in kilojoules per mole to one decimal…

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Q: 1 Label the diagram below, identify the anode, cathode, direction of electron flow, and direction of…

A: This type of cell is called concentration cell in which both the anode and cathode are made up of…

Q: If A, B, C, and D are four - electrically neutral - different single-tooth substituents, find how…

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Q: Which of the following would you predict to be soluble in water? (can choose more than one) NH₂ ҳ НО…

A: Given compounds are :  ?

Q: In a steel container, it was found that the pressure of the gas inside was 1200 torr when the…

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Q: An impure sample of KCIO, (FW = 122.5 g/mol) weighing 0.1353 grams was dissolved in 50.0 mL…

A: By considering balanced reaction for individual steps we can figure out mass of KClO3 present in the…

Q: Rank the following elements in terms of increasing atomic radius and ionization energy: sulfur,…

A: In this question, we will arranged all the elements in increasing order of their atomic radius and…

Q: QUESTION 3 The following carbohydrate tests have been performed on a sample containing an unknown…

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Q: Balancing Act Name This activity will help you become skilled at balancing chemical equations. 1.…

A: Here, we have to balance the given chemical equations. Note that, in a balanced equation, both sides…

Q: The molecule below is hydrocortisone. For each of the eight numbered carbons identify whether they…

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Q: 1.2 2(1) In the contact process: 2SO₂(g) + O₂(g)2SO3(g) AH = -197 kJ mol-¹ Predict the position of…

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Q: For a particular redox reaction, NO₂ is oxidized to NO3 and Cu²+ is reduced to Cut. Complete and…

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Q: Consider the reaction N₂(g) + O₂(g) 2 NO(g) that has an equilibrium constant, Kc, fof 4.10 × 10-4 at…

A: Here we have to determine the percentage of O2 remain intact in the following given reaction…

Q: The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: E In this…

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Q: For each chiral carbon labeled in the structures below (see the numbers), assign R or S absolute…

A: Given structures are :

Q: Convert the following concentration to parts per million (ppm); 300g Cu in 2000ml of water.

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Q: In a pure sample CH₂F₂, what forces of attraction exists between molecules? A) dispersion forces…

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Q: For the molecules shown below, which ones represent constitutional isomers of each other?

A: Constitutional isomers are the molecules having same molecular formula but can have different…

Q: 4. Which of the following formulations will give the highest ATP yield upon complete oxidation? Show…

A: Formulation A sucrose= 24 pyruvate= 15 oxaloacetate= 14

Q: We want to determine the purity of copper in the wires used for electrical cables. This can be done…

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Q: 3 (ii) In the Haber process for the production of ammonia the following reaction occurs: 3H2(g)…

A: The equilibrium constant of a reaction is the ratio between the product's concentration to the…

Q: If a 13.6 gram sample of Oxygen gas increased to 17.5 grams in a 9.2 L flexible container, what was…

A: Given :  Initial mass of oxygen sample = 13.6 gram  Final mass of oxygen sample = 17.5 gram  Final…

Q: For each of the following processes that occur in an open steady state system, calcu- late the heat…

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Q: II. O: H 1. pkA=6.0 What is the one letter code for the primary sequence of the peptide? SFCMDLR…

A: Peptide is small chain of Amino acid

Q: When a 2.00 g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity…

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Q: Rate data were collected for the following reaction at a particular temperature. (C2H5)2(NH)2 + 12 =…

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Q: 4. Indicate the topicity (snantistegis or homotopic or diastereotopic) of each of the following…

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Q: Complete the following diagram for the carbon molecule (C2): 2p 2s 1s 30 1g 30 1 200 20 100⁰ 10g 2p…

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Q: What is the equivalent weight of Na₂S₂O3.5H₂O? Na = 23.0, S = 32.1, O = 16.0, H = 1.0

A: finding the equivalent weight of Na2s2o3.5h2o

Q: Complete the following diagram for the carbon molecule (C2): 2p 2s. 1s S 30++ 1xg 30 1 200 20 100*…

A: Here we are required to fill the Molecular orbital of C2

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.