empirical formula?

Q: Question 25 The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn2+//Cu²+/Cu ...

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Q: In case of Ideal Gas law, PV=nRT, what volume in Liters would 3.50 moles of Oxugen Gas , O2, occupy ...

A: Given, Moles of Oxygen gas (n) = 3.50 moles Universal gas constant (R) = 0.0821 L.atm/mol.K Temperat...

Q: Question 31 Consider the reaction below. Given the equilibrium concentration of each species, what i...

A: Equilibrium constant can be defined as the ratio of concentration of products to concentration of re...

Q: If 25 grams of methane, CH 4, and 30 g of ammonia, NH 3, are combined w/ excess oxygen, how much met...

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Q: Dtermine the formal charge of N and the number of lone pairs present.

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Q: Using Brønsted-Lowry definitions, designate each of the following as a strong base (SB), a weak base...

A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a subst...

Q: PROCEDURE 1000 mg L-asocrbic acid tablet (pulverized into fine powder) Molar mass of tablet = 176....

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Q: Given the data below, plot the titration curve of the unknown amino acid. Determine the isoelectric ...

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Q: False For weak electrolytes, such as acetic acid, at very low concentrations the molar conductivity ...

A: The answer is as follows:  

Q: 1. Select: Plant Food A NPK ratio: 11-35-15 Trial 1 Trial 2 2. Mass of sample(g): 2.0g 2.0g 3. Mass ...

A: Given: molar mass of MgNH4PO4.6H2O = 245.41 g/mol molar mass of P = 30.97 g/mol molar mass of P2O5 ...

Q: hich of the follovwing calcium compounds is used to detemine the presence of carbon dioxide and comm...

A: The correct option is:  

Q: Supple key information summary of the following: (answer can be short) Intermolecular Forces of att...

A: Intermolecular forces of attraction is the force of attraction present between two atoms, ions or mo...

Q: Briefly explain the various scientists involved in the creation of the atomic model and what their v...

A: Various scientists involved in creation atomic model were : Rutherford , J.J Thomson , Neil Bohr  Pr...

Q: 6. Which one of the following statements regarding a dynamic equilibrium is false? a) At equilibrium...

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Q: the infrared region, there is an absorption line of hydrogen that appears at 1094 nm. Determine the ...

A: Ans. This transition is part of The Paschen Series of lines which occurs in the infra-red region of ...

Q: Question 11 In the home-based experiment involving reaction between the iodine solution and ascorbic...

A: The given reaction is between iodine solution and ascorbic acid. The reaction is, I2 + C6H8O6 ---&gt...

Q: uestion 25 The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn²+11Cu²+1Cu (...

A: We have to predict the emf of cell, ∆Go and nature of reaction.  

Q: CH3

A: This question belong to Chemical bonding and molecular structure. We will determine the geometry of ...

Q: CH3 o 11 HgC-C-C Ha C-C CH3

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Q: Write a nuclear equation to describe the spontaneous fission of Am-244 to form I-134 and Mo-107. Det...

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Q: Define 1. Molecular mass 2. Mole

A: Molecular mass:  Molecular mass is a number which indicates how many times one molecule of a substan...

Q: The equilibrium constant Kc for the reaction fructose-1,6-diphosphate = glyceraldehyde-3-phosphate +...

A: We have to find out the standard Gibbs free energy and change in Gibbs free energy for the given con...

Q: For potassium (K), the work function equals 3.669 x 10 19 J (per photon). a) What is the minimum fre...

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Q: он он HO- 2. Would H1 NMR be able to distinguish between the set of compounds shown above? Explain w...

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Q: Let us now pretend that you are a cosmetic chemist. Since you already know the different cosmetic in...

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Q: Match each variable to the appropriate graphical description provided below: slope of the zero order...

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Q: 1. Why is it essential to compare the cosmetic ingredients and properties of the different brands of...

A: 1. Everyone has different type of skins someone can have oily skin, dry skin or any other type. So, ...

Q: 2. If you make a solution by mixing 25.mL of 0.50 M acetic acid (CH3COOH) and 25 mL of 0.30 M sodium...

A: Given,  [CH3COOH] = 0.50 M  Volume of CH3COOH = 25 mL  [CH3COONa] = 0.30 M  Volume of CH3COONa = 25 ...

Q: Computation. Compute for the amount of NaHCO3 that reacted with 9.4 g citric acid. 3 NaHCO3 (MW:84g/...

A: Given, 

Q: Example of Soil Colloids and importance in the improvement of Agricultural Practice?

A: Soil colloids are the most active portions of the soil because of their large surface area and it de...

Q: Cu(OH)2 + HNO3

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Q: Experiment: UV-Vis Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages   Ex...

A: Spectroscopy is basically a technique that study the interaction of matter with radiation  UV spectr...

Q: D: Define and draw the Unit Cell and give an example.

A: A space-lattice can be subdivided into a number of small cells known as unit cells. 

Q: Write down the nuclear equations for the following: alpha emission by plutonium-239 beta em...

A: The nuclear reaction takes place by the emission or accepting the radioactive particles like α, β, γ...

Q: You were assigned by your instructor to determine the concentration of NaCl in water. You did three ...

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Q: 0.1 g of the mixture of na2so4 and k2so4 is taken and 100 ml of solution is prepared. 10 ml of this ...

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Q: Question 29 Which of the following has no effect on the position of equilibrium? Temperature Concent...

A: Catalyst can be defined as the substance that speed up reaction without getting consumed in the reac...

Q: A solution is labeled 0.0404 M Sr(OH), Complete and balance the dissociation of Sr(OH), into ions in...

A: pH of solution is defined as negative logarithm of hydrogen ions.

Q: Name of Experiment: Determination of the formula and stability constant of a silver complex. Q1: Pur...

A: Name of Experiment- Determination of formula and stability constant of Silver complex.   1) Purpose ...

Q: What is the purpose of Safety Data Sheets? Why are these important when handling common food service...

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Q: 7. Seneca Lake, a freshwater lake with a surface area of 173 km and an average depth of 92.2 m is th...

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Q: Consider the reaction below. Given the equilibrium concentration of each species, what is the equili...

A: Equilibrium constant ( Kc ) is the ratio of concentration of products to concentration to reactants ...

Q: Consider the reaction below. Given the equilibrium concentration of each species, what is the equili...

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Q: The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn2+//Cu²+/Cu (s) If the Z...

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Q: LINO3 is added to water. Will it change the pH, and if so, how? Yes, and the pH will be 7. You want...

A: We can determine if a salt added to water will make pH of water more acidic,basic or will remain unc...

Q: What is oxidation number?

A: Given question is : What is oxidation number = ?

Q: A solution is made by dissolving 35.4 g HBr in 635 mL of water. Calculate the pH of this solution.

A: Given, Mass of HBr =35.4 g Volume of solution = 635 mL = 0.635 L pH of the HBr solution = ? Note:  M...

Q: 5C+8D ------- A+2B what is the overall order for the function

A: Given that, 5C+8D ------- A+2B Then,  

Q: MnO4-(aq) + 5Fe2+(aq) + 8H+(aq) ---> Mn2+(aq) + 5Fe3+(aq) + 4H2O (l) a.Fe|Fe2+(aq), Fe3+(aq)||MnO4-...

A: Here we have to make write correct cell notation of the following redox chemical reaction . For this...

Q: o answer. Cosmetic Product: SHAMPOO Cosmetic Product Form: FOAMING GEL Uses: Shampoo needs to be in ...

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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.