moles

Q: what is the  mass in grams of NO that can be formed from 4.96 moles of NO2 in the reaction below 3N...

A: From the reaction we can say that 3 mole of NO2 gives 1 mole of NO .  So 4.96 mole of NO2 gives 4.96...

Q: Discuss the preference of Ni(II) for sulfide and oxide as ligands

A: Interpretation- To discuss the peference of Ni(II) for sulfide and oxide as ligands.        Introduc...

Q: Balance the following electrochemical reaction in acid: MnO4−(aq) + Zr(s) ↔ Mn2+(aq) + Zr2+(aq)

A: We have to predict the balance chemical reaction in the acidic medium.  

Q: Hydrogen gas can be generated from methane by the following catalyzed reaction, performed in a close...

A: decreasing the concentration of H2 will result in formation of more H2 thus forward shift increasing...

Q: What is the cell potential (E0) for a galvanic cell formed from the following two half-reactions? As...

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Q: The pressure in an automobile tire depends on the temperature of the air in the tire. When the air t...

A: Given, at 25◦ c pressure of gage read = 210 kPa Volume = 0.025 m3 Temperature rise = 50◦ c Atmospher...

Q: Please write the full mechanism of the following reaction

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Q: Please answer all the items will give you thumbs up and good rating. Answer if it is TRUE or FALSE 1...

A: Please find the below attachments.

Q: 10. How many grams of gas are present in each of the following cases? a. ) 0.100 L of CO2 at 307 tor...

A: a) Given that: Volume of gas (V) = 0.100 L Pressure (P) = 307 torr = 0.404 atm Temperature (T) = 26°...

Q: In the context of equilibrium constants of chemical reactions, which "K" value indicates a reaction ...

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Q: One method used in the eighteenth century to generate hydrogen was to pass steam through red-hot ste...

A: Given 3Fe (s) + 4H2O (g) →Fe2O3 (s) + 4H2 (g) Molar masses:  Fe = 55.845 g/mol  H₂O = 18.01528 g/mol...

Q: Cells in the front of the cornea obtain their oxygen from the air. Wearing contacts can interfere wi...

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Q: What is the pH of a 0.0125 M hyploclorous acid? (Ka= 3.0 x 10-8)

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Q: 2HgO(s) 2Hg() + 0,() 2Li(s) + 2HCI(ag) 2LICI (ag) + H, (g) 16Na(s) + S, (e) 8Na, S (3)

A: 1. It is a decomposition reaction because one substance gets decompose in two or more parts. 2. It i...

Q: complete and balanced chemical equation

A: Given: In the reaction of nitrogen and hydrogen gases, ammonia and heat are generated.

Q: A 18. Find the equilibrium constant, k (at 25°C) for the reaction: 2 NH3 cg) + COz cg) NH2CONH2CS) +...

A: 2NH3(g) +CO2 (g)==> NH22CONH2 (s) + H2O (l) 

Q: When separating a mixture, a contaminant was introduced. How would this affect the percent recovery?...

A: Contaminant is the impurity that mix with the mixture. 

Q: 8. The Ksp for lead iodide (Pbl22) is 1.4 x 10-8. Calculate the solubility of lead iodide in each of...

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Q: 1. What is the significance of the order of the reaction? How does it affect the rate constant?

A: The order of the reaction refers to the power dependence of the rate on the concentration of each re...

Q: Br. O,N

A: Alcl3 is used for generation of electrophile.

Q: Calculate the entropy change AS°universe for the following reaction, at 25 °C. CO + 2H2 CH3OH Standa...

A: Solution -

Q: You have 120 g of water in an insulated container with an initial temperature of 25.0°C. The instruc...

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Q: how many moles of H2O can be formed from 3.02 x 1023 molecules of NH3 from the following equation  ...

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Q: Metallic potassium has a body-centered cubic structure. If the edge length of unit cell is 533 pm, c...

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Q: The synthesis of the pesticide thionyl chloride (OSCl2) proceeds according to the following reaction...

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Q: why is there bubbles formed when aniline was added to concentrated HCl?

A: Aniline is basic in nature and HCl is an acid. So, acid-base reaction will take place.

Q: A sample of methane gas is held in a sealed container at a pressure of 2.34 atm at 75.0°C. What will...

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Q: The mass deficiency for an isotope was found to be 0.410 amu/atom. Calculate the binding energy in J...

A: Mass deficiency of an isotope = 0.410 amu/atom Speed of light, C = 3.00×108 m/s  

Q: What effect did high and low temperatures have on enzyme activity? Why?

A:   Explanation:        Temperature: Raising temperature generally speeds up a reaction, and lowering...

Q: Be familiar with redox and electrical circuit (voltage, current, etc.) terminology Answer: • Be able...

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Q: What is the cell potential (EO) for a galvanic cell formed from the following two half-reactions? Pb...

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Q: Which of the following is used to mix the solutions while heating? Glass stirrer / Stir Rod O a. O b...

A: Some solutions need stirring  with heating

Q: b) Calculate the mass of solute required to make 263 mL of a magnesium sulfate solution that has an ...

A: #(b): Given osmotic pressure, π = 3.85 atm temperature, T = 311 K R = 0.08206 L.atm.mol-1.K-1 

Q: What change in reaction direction occurs if dilute HCl is added to a H2PO4- solution? H2PO4 + H20 2 ...

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Q: Which of these molecules or ions has a violation of the octet rule (other than H)? O BCI3 O F2 O PH3...

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Q: The general reaction involved in the saponification of fatty acids with NaOH is O Aminolysis O Acid ...

A: Saponification is the process that involves the conversion of fat,oil or lipid into soap and alcohol...

Q: What is the molarity of each ion in a solution of: (a) 0.417 M MgCl, [magnesium ion] M [chloride ion...

A: Salts are those compound which are considered as strong electrolyte. Strong electrolyte are those el...

Q: Chloroform has ∆Hvaporization = 29.2 ??/??? and boils at 61.2 °C. What is the value of ∆Svaporizatio...

A: □Hvap. = 29.2 kJ/mol    = 29.2 × 1000 = 29200 J/mol Boiling point (T) = 61.2 °C   = 61.2 + 273 = 334...

Q: How do you find the oxidation numbers of Cr and P in the formula unit Cr(PO4)2?

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Q: When the temperature rises from 105 to 168 degrees Celsius, the rate of a reaction increases by 3.60...

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Q: in following reaction which species is being oxidized and which is being reduced  2Cr(s) + 3CI2(g) ...

A: Redox reaction:  • Chemical reaction involving simultaneously reduction and oxidation process.  Redo...

Q: What is the cell potential (E0) for a galvanic cell formed from the following two half-reactions? ...

A: Given: The oxidation half cell reaction. Al3+(aq)+3 e-⇌Al(s)            E0=-1.66 V. The reduction ha...

Q: moles

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Q: Will carbon dioxide be evolved as a gas when sodium bicarbonate is added to an aqueous solution of e...

A: Given: Reaction of sodium bicarbonate with different reagents.    

Q: The isomerization of cyclopropane follows first order kinetics. The rate constant at 700 K is 6.20 x...

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Q: Hydrogen is industrially produced by the following reaction between propane and liquid water: ​ C3...

A: We have to predict the value of m and n.  

Q: Write about the background information of plant-based meat in around 300 words

A: A meat analogue is a food industry term for a meat-like substance made from vegetarian ingredients. ...

Q: For the equilibrium shown below, assess whether the following mixture is at equilibrium.  If the mix...

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Q: The radioactive decay of uranium-238 to form a stable lead-206 product involves alpha decays. A two ...

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Q: 7. Given the following reaction: H2SO4 + NAOH → NazSO4 + H2O a) Balance the following reaction. b) C...

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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.