A tank contains 12 moles of a mixture of neon, krypton, and radon at 300. kPa. If there are two moles of  krypton in the tank, what is the partial pressure of krypton?

Q: Compound Formula Cation Symbol Anion Symbol Compound Name *CuCl, Cu 2* CI copper(II) chloride FeN *F...

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Q: A protein has about 200 amino acids. What is the expected Molecular Weight of the protein (in g/mole...

A: Given that, a protein has about 200 amino acids. The average weight of an amino acid is 110Da. We ha...

Q: An atom has an of electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1 3d9. Estimate the number of its m...

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Q: Lactic acid is produced in the tissues by anaerobic metabolism of glucose. Lactic acidosis occurs at...

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Q: Which of the following processes is exothermic, given the following: N2(9) + 2 O2(g) → N204) AH°= 9,...

A: Given -> N2(g) + 2O2(g) --> N2O4(l).      ∆H°= 9.67 kJ/mole N2(g) + 2O2 (g)--> 2NO2(g).    ...

Q: For many purposes we can treat ammonia (NH,) as an ideal gas at temp Suppose the temperature of a sa...

A: To solve this problem we will use the combined gas law .  Which is given as  P1V1/T1 = P2V2/T2     

Q: A 0.00653 M solution of an unknown weak acid has a pH of 3.510 at 25 °C, what is the K acid at 25 °C...

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Q: Complete the reaction scheme below with the missing structure and any other necessary reagents. You ...

A: The answer is as follows:  

Q: Heat of Neutralization = Q/moles of limiting reactant = Q/moles of NaOH titrated at neutralization =...

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Q: Identify if the following compound has R or S chirality. H. CH3

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Q: If the chemical potential of the j-th component at a temperature of T1, H;(T1), is known and the par...

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Q: In the typical illustrations of orbitals, the boundary surface Select one: a. encloses a volume of s...

A: We would define orbital and boundary surface . 

Q: In aqueous solution, pentanoic acid (HC-H,02) dissociates to produce its conjugate base, the pentano...

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Q: Fe  +  H2S04  ?  Fe2(SO4)3  +      H2

A: Here in the question there is no instruction to do.By guessing as it is an unbalanced chemical equat...

Q: Lead (II) nitrate as Pb(NO3)2 and potassium iodide as KI combine to form the products shown. 2 KNO3...

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Q: H2SO4

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Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a certa...

A: We can calculate the equilibrium pressure of H2 by drawing an ICE table. We would use given initial ...

Q: A 10.00 L tank at -7.0 °C is filled with 4.65 g of sulfur hexafluoride gas and 3.91g of dinitrogen m...

A: Given data: Mass of sulfur hexafluoride(SF6) = 4.65 g Mass of dinitrogen monoxide (N2O) = 3.91 g

Q: Explain isomers

A: Please find the below attachments.

Q: Calculate the mass of K10, (molar mass = 21402 @/mol) required for par A 1.

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Q: A P (atm 1- 10 20 30 40 so 60 70 T(deg. Celsius) 1. In what phase is the substance at 50 °C and 1 at...

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Q: e the mass

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Q: (üi) H;C-ċ-CH2, CHT (c) How can the following compounds be distinguished. by . 'H-NMR? . Provide che...

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Q: Calealate the standard entrepy change for the following reaction at 25°C. s(rhombic) + Ogle) - so,) ...

A: S(rhombic) + O2 (g) --> SO2(g)  

Q: the equilibrium constants for the two reactions 2 HCl(g)    H2(g) + Cl2(g)             K1 = 4.36x1...

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Q: Name formula Sulfur difluoride Dinitrogen trioxide Carbon monoxide Nitrogen trichloride Sulfur triox...

A: A chemical formula represents the number of atoms of each element in a molecule.

Q: a dipole moment?

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Q: . Among the choices, choose which will have the lowest energy for a Pd2+ ion? a. 3P0 b. 3F4 c. 3F2 ...

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Q: Problem: CAH,NO IR: medium stretch at 2240 cm1 'H NMR 3 H 2 H 2 H 4 3 2 PPM 1 13C NMR 120 100 80 60 ...

A: Given data: Molecular formula = C4H7NO So,  Degree of unsaturation = C-(H/2)+(N/2)+1 = 4-(7/2)+(1/2)...

Q: Need solution to all parts otherwise I'll downvote your answer

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Q: A 100.0 g sample of copper is heated to 86.1 oC then allowed to cool. What is the final temperature ...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: build the secular det erminant bor cyclobutadiene and cofficents and levels

A: Using Huckel molecular orbital to determine secular determinant and energy levels diagram.

Q: Calculate the number of oxygen atoms in a 130.0 g sample of diphosphorus pentoxide (P205). Be sure y...

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Q: How many grams of potassium permanganate are required to prepare 432 mL of 0.540 M solution

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Q: Probelm 2

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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: The equilibrium constant expression for the reverse of the reaction given below is 4 NH3(g) + 5 O2(...

A: Reaction: 4 NH3(g) + 5 O2(g)  ⇌ 4 NO(g) + 6 H2O(g)   Reverse Reaction can be written as: 4 NO(g) + 6...

Q: formula Binary? Covalent or Polyatomic ion? Cation variable charge? What? Yes, Gold(II) Name ionic o...

A: Note: As per company policy we are supposed to attempt first three subparts only. Please repost othe...

Q: equilibrium concentration at

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Q: hich of the following is TRUE? lect one: O a. Only Hund's Rule and Pauli's Exclusion Principle appli...

A: No two electrons have same set of quantum numbers.

Q: Identify if the following compound has R or S chirality. H3C OH Но. O-P- OH None R.

A: Tricks to solve R/S  Case 1: least prior on the dash  if rotation clockwise then R  if rotation is a...

Q: A 22.0 g block of copper at 45°C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0385 JigC...

A: Given - - > Heat absorbed = 2.50 KJ Mass of block = 22 g Initial temperature = 45°C Specific heat...

Q: moles

A: The total pressure exerted by the mixture is the sum of the partial pressure of each gas.  So to cal...

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: III WICI a process occurs at constant external pressure. a) What is the sign of w for the system? Is...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: 1. ACID/BASE. Supply the missing reactants and products and balance eac equation. All are acid-base ...

A: Balanced reaction are:

Q: What is the average mass, in grams, of one Zn atom?

A: Given :- Number of atoms of Zn = 1 atom  To calculate :-  Average molar mass of single atom of Zn (i...

Q: Given the following reactions 2C D K-5.12 10 D 2A - 28 K-653 10 1st attempt Calculate the value of t...

A: The solution is as follows:  

Q: Total # Valence e Lewis Structure Electronic geometry Molecular (name & drawing) geometry Molecule P...

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Q: A 4.0 g sample of bromine is reacted with 0.50 grams of hydrogen to form hydrogen bromide. How many ...

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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.