What is the mass of 4.50 x 1044 Cu atoms?

Q: Cation Symbol Anion Symbol & charge Compound Formula Name & charge ammonium acetate sodium bicarbona...

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Q: Given the reaction inside the container, CO2 (g) + H2O (l) --> H2CO3 (aq). What will happen if the p...

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Q: 2. Are the following molecules aromatic, non-aromatic, or anti-aromatic? Provide the electron count ...

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Q: The chemical formula for hydrogen bromide is HBr. A chemist measured the amount of hydrogen bromide ...

A: mass of HBr = 486 g moles of HBr=?

Q: Consider the following reaction and the tabulated thermochemical data at 298 K. + 50. 3(g) 2(9) 6 H ...

A: We have to find equilibrium constant for the reaction.

Q: Annotate the H-NMR spectrum of 3-nitrobenzaldehyde

A: The 1H NMR spectrum of the product, 3-nitrobenzaldehyde possesses four protons in the aromatic regio...

Q: H. 1. NABH4 2. Neutralizing work-up

A: Here a reaction is given .For this reaction reagents and products are given.We have to draw the stru...

Q: 9. An isotope of an element is dependent on A. Protons B. Neutrons C. Protons and neutron D. Electro...

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost...

Q: Compound Formula Cation Symbol Anion Symbol Name K,S K* potassium sulfide Na,N NaBr Mgo CaCl, AIN Na...

A: charge on an ion (cation or anion) represent the valency(only magnitude of charge) of that ion.  A c...

Q: For many purposes we can treat butane (C,H10) as an ideal gas at temperatures above its boiling poin...

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Q: Which of the following statements is/are correct at 25 °C? 1. Benzoate (C,H,O2) requires a Ka to det...

A: To calculate the pH of weak acid and base we need their Ka and Kb values.  Kb of lactate ion can be ...

Q: 3. For a certain overall third-order reaction with the gener reaction is 0.42 M/s when the initial c...

A: Given reaction  aA --> product 3rd order reaction

Q: If density of a gas is 2.44 g/L at 27°C and 570 torr. What is its molar mass? This gas is an oxide o...

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Q: Find the product OCH, H,N. [H] H,N

A: Detail mechanistic pathway is given below by which we get the final product.

Q: mass percent composition.

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Q: Which of the following is TRUE for the combustion of liquid octane (C8H18) in the presence of excess...

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Q: 3. Provide the products, intermediates, and/or reagents for the following reactions: (a) CH3 (1) H2N...

A: 1. Reaction between acid chloride and amine compound gives amide as a product. 2. In wittig reaction...

Q: Which of the following statements best illustrate the law of multiple proportions? Select one: O a. ...

A: Law of multiple proportions, proposed by John Dalton, states that when two elements combine each oth...

Q: e moles of a

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Q: An electron is confined in a linear molecule consisting of 12 carbon atoms (with C-C bond length "0....

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Q: Give the IUPAC name for the compound bellow: Br Br 6-methyl-1,4-dibromobenzene 1,4-dibromo-2-methylb...

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Q: What is the vapor pressure of a 45.0 % solution of glucose, C6H12O6 (252.12 g/mol), at 90.0°C, given...

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Q: Fe20з + C Fe CO2 You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. Wha...

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Q: The chemical formula for lithium hydride is LiH. A chemist measured the amount of lithium hydride pr...

A: Detail mathematical calculation is shown below

Q: Consider the reaction shown below and the tabulated thermochemical data at 298 K. Which of the follo...

A: Given - SnCl4 (l) + 4H₂O(l)   →    Sn(OH)4 (s) + 4 HCl(g)   SnCl4 (l) H2O(l) Sn(OH)4 (s) HCl (g) ...

Q: What is the OH- concentration (molarity) in a solution with a pOH equal to 5.780 at 25°C? Answer usi...

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Q: What is the true density of Zr, an HCP crystal, in g/cm3? Where: Atomic Number = 40  Atomic Weight...

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Q: Argon makes up 0.93 percent of the Earth's atmosphere by volume. What is the partial pressure of arg...

A:    Given :     Total pressure(PTotal ) = 760 mm Hg     We have to calculate partial pressure of Argo...

Q: 15. Label all parts on the below diagram based on a standard silver-zinc cell. See Table 2 in Append...

A: Electrochemical cell:

Q: Gaseous butane (CH3(CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (...

A: Given data is as follows: The mass of butane = 46 g The mass of oxygen =48.3 g The maximum mass of c...

Q: 7. Suggest chemical structures for compounds A, B, and C, and answer the subsequent spectroscopy que...

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Q: Write the condensed structure of the following: 4. Propyl Pentanoate 5. Pentanitrile

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Q: e work done on the g

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Q: For the complete neutralization reaction between a 1 M strong acid and a 1 M strong base of equal in...

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Q: 76.4 mL of 0.25 M lithium hydroxide are needed to completely neutralize 250.0 mL of a solution of su...

A: Using stoichiometric ratio we can determine how many moles of H2SO4 neutralises. From that we can ca...

Q: 4. Propose a synthesis plan for these molecules (a) (b) Br. OEt from a Wittig reaction from benzene ...

A: Concept : Retrosynthesis 1) it is also called as back synthesis or reverse synthesis.  2) it is an i...

Q: theoretical yield

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Q: theoretical yield of carbo

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Q: Suppose that you are required to calculate the number of moles for E Ar atoms. (E is a number) Avoga...

A: Detail mathematical calculation is shown below

Q: H Ph. Provide mechanisms for the reactions: (a) N-Ph „NH2 CH3 CH3 (b) iBuO, OtBu DIBu Ph then H Ph N...

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Q: d. how much heat, In kilocalories and kilojoules, would be required In order to cause 150 g of COz t...

A: 2CO2(g) + 4H2O (l) ----> 2CH3OH(l) + 3O2(g)  

Q: What percentage of the radioactive iodine-131 will be left after 25 days if its decomposition follow...

A: In first-order kinetics, the rate of reactions of chemical reactions are dependent on one of the con...

Q: A sample of 4.25 moles of hydrogen at 20.0 C occupies a volume of 25.0 liters. Under what pressure i...

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Q: Of course, this proposed law is hypothetical. Using the following data collected experimentally (pro...

A: Data  Time (s)  [NO2], M  ln [NO2] 1/ [NO2]  0  1.00 x 10-2 -4.60517 100  60  6.83 x 10-3 -4....

Q: Which of the following molecules will NOT exist? Select one: O a. H2 O b. Liz2* Ос. Liz O d. Hez*

A: Which of the molecule will not exist ?

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3 (Si,O3),(OH), An a...

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Q: 1. Calculate the mole fraction of the solute in the following solutions: a. 100.0 grams C2H60 in 100...

A: Here, we have to calculate the mole fraction of the solute in: a) 100.0 g of C2H6O in 100.0 g H2O. b...

Q: The AHvap of ethanol is 38.56 kJ/mol, and its normal boiling point is 351.52K. What is its boiling p...

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Q: A solution is prepared by adding 41 mg of sodium acetate (CH3COONA) to 1 Lof distilled water. The ac...

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Q: What quantity (moles) of NaOH must be added to 1.0 L of 1.5 M HC2H3O2 to produce a solution buffere...

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.