A gas mixture, that has been formulated to simulate the atmosphere of another planet, contains: 320 mg of methane (CH4), 175 mg of argon (Ar), and 225 mg of nitrogen (N2). The partial pressure of nitrogen at 300 K is 15.2 kPa, calculate the total pressure of the mixture at this temperature.

Q: The solubility product of Ag2S is 6.0x10-51. Determine the molar solubility of Ag2S.

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Q: During inhalation, a person's diaphragm and intercostal muscles contract, expanding the chest cavity...

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Q: The normal boiling point of cyclohexane is 80.74 °C. At 20.00 °C, the vapour pressure of cyclohexane...

A: Given,  The normal boiling point of cyclohexane is 80.74 °C.At 20.00 °C, the vapour pressure of cycl...

Q: Show how to carry out the transformation of benzene to chlorobenzene by going through a diazonium in...

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Q: 2 Li oH H Ph 2) NaoH, CH, oH phc Chme: Adol- Tischeako reaction

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Q: 1. H* [-H2O] (еxcess) OH H3C CH3 Но 2. PhзPE CH3

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Q: Number of Molecule valence electrons Formal Charge Electron-Group Geometry Molecular Geometry Resona...

A: Here for the following molecules we have to determine the number of valence electrons , Formal charg...

Q: When a small amount of strong acid is added to an ammonia/ammonium chl buffer, what happens to the c...

A: Given : We have to tell what happens to the concentration of ammonia and ammonium chloride buffer wh...

Q: 500. mL of a solution of calcium hydroxide at 45 °C contains 104.5mg of the salt. Determine the solu...

A: Given- Volume b= 500 ml =0.500 L (1L = 1000 ml) Weight = 104.5 mg = 0.1045 gm (1 gm = 1000 mg)  

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in o...

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Q: Consider the following reaction where K, = 6.50x10-3 at 298 K. 2NOBr(g) 2NO(g) + Br2(g) A reaction m...

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Q: For the central atom in each formula, draw the Lewis Structure with all valence electrons shown.   ...

A: For the central atom in each formula, draw the Lewis Structure with all valence electrons shown ---

Q: Calculate the half-life time & rate constant from the information below , the reaction is 1st order ...

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Q: 2. During Amihan season, the crops in Benguet and other Northern Luzon provinces are prone to damage...

A: Two questions based on properties of liquids that are to be accomplished.

Q: Q.6:define the following: a. molecular engineering b. The atomic mass unit c. Periodic Table d. Paul...

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Q: If you will be doing a 7-fold dilution with transferring 70 uL of initial solution to tube 2 and ser...

A: In order to make 7 fold dilution, we add 6 parts of water for 1 part of the concentrated solution.  ...

Q: Illustrate the electron spin quantum number of Carbon

A: Quantum numbers are defined as set of numbers which describe the energy and position of electrons in...

Q: Gaseous SO2Cl2 reacts with liquid water to form hydrogen chloride gas and liquid sulfuric acid. Usin...

A: Given: Gaseous SO2Cl2 reacts with liquid water to form hydrogen chloride gas and liquid sulfuric aci...

Q: A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1=4.00, pK2 = 8.00) was titrated with 1.00 M NaOH...

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Q: Which of the highlighted chemical bonds in the molecules below is longest? SH Lowest? In between? An...

A: We have to decide the different bond length and strength of Carbon and nitrogen in three different c...

Q: A benzoate buffer is prepared containing 0.33 M benzoic acid and 0.28 M benzoate. The Ka of benzoic ...

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Q: In acidic solution: 1. PbO2 + I2 → Pb2+ + IO3 Oxidation half-reaction: Reduction half-reaction: Comp...

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Q: In the reaction below, what are the physical states of the products? Fe;O4 gas and gas aqueous and a...

A: First we would write a chemical equation then determine physical state of products. 

Q: Draw the major organic products of reactions A and B. Draw product A. Select Draw Rings More Erase H...

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Q: Using the solubility chart on p.6 in your Chemistry Data Booklet, identify the state of each of the ...

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Q: What is the principal quantum number (n), the orbital angular momentum quantum number (l), the magne...

A: Given- Boron (B) Atomic number = 5  

Q: What is the effective nuclear charge felt by a valence electron in the element with atomic number 16...

A: Effective nuclear charge is determined with the help of Slater's rule.  Electronegativity is the ten...

Q: Which process(es) listed below occur with an increase in entropy? (i) Water in the ocean warms up du...

A: Entropy is a measure of the randomness of the molecules of a substance. For a spontaneous reaction t...

Q: Determine the root mean square velocity of nitrogen molecules at 250.0 ºC in meters per second (m/s)...

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Q: Consider the titration of 50.0 mL of 0.501 M weak base B (Kb = 7.5 x 10⁻⁶) with 0.340 M HNO₃. What i...

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Q: The solubility product of Mg(OH)2 is 1.2x10-11. Predict whether a precipitate will be formed or not ...

A: The volume of 0.01 M MgCl2 added = 20.0 mL The volume of 1x10-3 M NaOH solution added= 30.0 mL We ha...

Q: Wind Mechanical Sun 1. 2. Geothermal 3 Fossil fuels 4. 5. Plants us ed as a food 6.

A: Given : We have to write forms of energies for the given sources.

Q: LDA

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Q: Zeroed out mass of calorimeter and themometer Got a 50 mL graduated cylinder. Measured 25 mL of wate...

A: Heat of dissolution can be calculated from the temperature change occurred in the water after dissol...

Q: The reaction C,H;(g) – 2C,H,(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate constan...

A: we have to calculate the value of rate constant for the given reaction at 830.0 K

Q: The Ksp for AgCl is 1.6 x 10-10. Determine the solubility of AgCl in g/ L under the following condit...

A: Given:: Ksp of AgCl = 1.6 × 10-10 molar mass of AgCl = 143.32 g mol-1 Determine solubility in g L-1 ...

Q: Select the single best answer. If 30.00 mL of 0.10 M Ba(NO3)2 are added to 36.00 mL of 0.10 M Na2CO3...

A: Given: The volume of 0.10 M Ba(NO3)2 added = 30.00 mL The volume of 0.10 M Na2CO3 added = 36.00 mL W...

Q: A solution of HNO3 has a pH of 3.53. What is the molarity of the solution?

A: Given,  The pH of HNO3 solution = 3.53.  The molarity of the solution is:

Q: Which highlighted bond requires the highest energy to break? Lowest? In between? Answer these questi...

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Q: Identify two (2) unwanted sources of heat loss and/or gain that may have contributed to the error in...

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Q: Q2: Calculate the solubility of Mg(OH)2 in 0.10 M NaOH.Calculate the solubility in grams/liter (use ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: NH3 NH3 CH3CO2H (CO2H)2 H20 NH2OH (CH3CO)20 CH3CO2H

A: Answer of this question :-  Firstly, we know what is hydrogen bonding. Hydrogen bonding :- The bond ...

Q: Calculate the pH when 77.0 mL of 0.250 M HCI is mixed with 40.0 mL of 0.150 M Ca(OH):.

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Q: Draw Lewis structures for bromine nitrate (BRONO2) and bromine monoxide (Bro). (Draw all major reson...

A: Lewis structure of Bromine nitrate:

Q: Determine the mass of silver chromate that will dissolve in 1.0-gallon of water. (Note: 1 gal = 3.78...

A: solubility product is defined as the product of concentration of ions formed when a sparingly solubl...

Q: 2. Br HCI, H,O 1. Cl, NaOH, H,0 2. H. H,0 1. P. Br 2. H,0 он 3. CH,NH, 1. LDA EIONA (2 equiv.) 1-bro...

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Q: Using activities, calculate the pH of a solution containing 0.015 M HCI, 0.036 M HCI and 0.050 M NaN...

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Q: Suppose the galvanic cell sketched below is powered by the following reaction: Fe(s)+SnCl,(aq) FeCl,...

A: We have given a galvanic cell diagram and it's reaction. Answers and explanation of all these questi...

Q: Consider the following reaction: 2503(g) 2s02(g) + 02(g) If 7.35x10 2 moles of So3(g), 0.264 moles o...

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Q: in a sequence of reactions, ethanal is converted into a compound H. CH3CHO (presence of HCN, NaCN) >...

A: Aldehyde reacts with HCN in presence of NaCN. 

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.