A chemical species is analyzed and the percent composition is 8.62% hydrogen and 91.4% Sulfur. What is the empirical formula for the especies?

Q: Suppose a 0.026 M aqueous solution of sulfuric acid H2SO4 is prepared. Calculate the equilibirum…

A: Answer: In this question we have to understand the dissociation chemistry of diprotic acid.

Q: According to the following reaction, how many grams of water are required for the complete reaction…

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Q: Write a Lewis structure for each of the following molecules. H2O2 Draw the molecule by placing atoms…

A: In this question, we have to draw Lewis structure for H2O2 molecule.

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Introduction:When a solid dissolves in water, heat may be released or absorbed. The heat of…

Q: MISSED THIS? Watch KCV: Limiting Reactant, Theoretical Yield, and Percent Yield, IWE: Limiting…

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Q: Given the following half reactions, write the balanced equation of the overall corrosion reaction of…

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Q: A local AM radio station broadcasts at a frequency of 817 kHz. (1 kHz = 1000 s¹) Calculate the…

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Q: Experimentally, it is found that the rate law for this process can be expressed as: RATE = k[Ala]².…

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Q: What is the pressure (in the bar) of Cl2(g) in a corresponding state with N2(g) at 239 K and 14.1…

A: Law of Corresponding states: Two or more substance having the same reduced temperature and the same…

Q: Write the Charge Balance Equations for the following solutions: 1) 0.10 F H2A 2) 0.20 F NH4Cl

A: Like mass, the net charge in a chemical reaction is conserved.  Hence in a balanced chemical…

Q: You are looking to order new carpet for your bedroom and it costs $ 3.45/ft2. If your bedroom is…

A: Given -> Cost -> $ 3.45/ft2 Area of bedroom = 11.8 m2

Q: Calculate ΔGinward. Is energy required for transport to happen? A cell at 37°C with a -0.05 V…

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Q: 2. The reaction below has an equilibrium constant Kp = 2.2 x 106 at 298 K. 2COF2(g) = CO₂(g) +…

A: Answer: In this question we have to establish the relation between equilibrium constant expression…

Q: For the following reaction: CH3COOCH₂CH3 H₂O CH₂CH₂OH. CH₂COOH a. Write a rate equation in terms of…

A: The reactants are present on left hand side of reaction and products are present on right hand side…

Q: reaction: NaHCO3(aq)  +  HCl(aq)   ®   NaCl(aq)  +  CO2(g)  +  H2O(l) How would your results be…

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Q: At 25°C, ke = 2 X10 2 X10-9 for the meacht NHY (NH₂ (0₂) (8)→ 2NH3(g) → 2NH₂(g) + (0₂ (9) kp= ? at…

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Q: calculate the percent composition by mass of the following compounds that are important starting…

A: Given -> Molecular formula= C2H2Cl2

Q: Fill in the orbital energy diagram for chlorine. A3s E 2s 1s 3p 2p Use the References to access…

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Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A: Answer: In the blow shown questions reaction between strong acid and weak base is taking place and…

Q: Suppose you have 150. mL of a substance with a density of 36.0 g/dm³ and want to determine the mass…

A: In this question we need to use dimensional analysis for converting the units .  For this we use…

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A: Given,♦ 0.6 mol of KOH is added to 1.0 L of a 0.3 M HF solution .♦ 0.2 mol of HI is added to 1.0 L…

Q: Modern commercial airliners are largely made of aluminum, a light and strong metal. But the fact…

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Q: What number of chlorine atoms are in 5.4 g chloral hydrate?…

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Q: According to the following reaction, how many grams of hydrobromic acid are needed to form 25.5…

A: Given information The decomposition of hydrobromic acid(aq) to hydrogen gas and bromine liquid.…

Q: 4. A student obtains the following data. mass of clean, dry and empty crucible mass of crucible with…

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Q: 47. C-N bond length I. propanamide II. 2-chloropropanamine

A: 47. The Distance between the centers of two covalent bonded atoms is known as the Bond Length. The…

Q: 1.  A 22.65-g sample of a solid is placed in a flask. Ethanol is added to the same flask having the…

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Q: A children's liquid medicine contains 100 mg of the active ingredient in 5 mL. If a child should…

A: (a) 15 ml (b) 3 tsp

Q: For each of the following ions, indicate the noble gas that has the same Lewis structure as the ion.…

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Q: What is the systematic name of: 4-(2-(methylamino)ethyl)benzene-1,2-diol? I'm pretty sure…

A: IUPAC name or systematic name of the compound

Q: For each set of chemical symbols, determine the species that fit the category listed. Which of the…

A: Atoms are electrically neutral contains no charge. Cation contain positive charge and anion contain…

Q: Write the safety precautions for each chemical Dry ice Chloroform-D Limonene

A: We have to write the safety precautions of  Dry ice  , Chloroform D and Limonene  Note: According to…

Q: 21) Automotive air bags inflate when sodium azide decomposes explosively to its constituent…

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Q: 3. consider the following addition reaction - two Possible Products and shown. will these foory in a…

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Q: How to tell if recrystallization successfully purified the sample? Why?

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Q: Use the following energy expression and the variational principle to find the exponent for U⁹1+

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Q: 1. Based on its position in the periodic table which atom would you predict to form an ionic…

A: From the d-block elements, Cu2+ ion can form ionic compound with two iodine atoms.

Q: Draw the most stable and least stable Newman Projections of 2,3-dimethylbutane by viewing along the…

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Q: For this question you will need to work all of your answers on scratch paper. Once completed, upload…

A: The average rate of a reaction is calculated as the change in the concentration of the reactant over…

Q: molecular formula of a compound of 66.6 % Carbon, 11.2 % Hydrogen, and 22.2% Oxygen with a molar…

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Q: Part 1 ( Where should we start? Notice that for the CH₂COOH, we know both the molarity and the…

A: Introduction :-  The relation between Mass and moles is                       Mass = Moles(mol) ×…

Q: The chemical formula for chlorophyll is C55H72MN4O5. Given the molar mass of the compound is 893.49…

A: Here given molar mass of chlorophyll is ---- 893.49 g We know--- 1 mole chlorophyll molecule = 6.032…

Q: 18. Which carbanion is the most stable A. methyl carbanion (CH3-) B. ethyl carbanion (CH3CH2-) C.…

A: Dear student, since you have asked multiple questions but according to guidelines we will solve 1st…

Q: Why is it important for us to leave the water for 5 minutes and determine the water's temperature?…

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Q: What volume of concentrated H2SO4 (18.OM) is required to prepare 550mL of 4.00M H2SO4 solution?

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Q: The temperature of 2.00 mol of an ideal gas increases from 11.0 °C to 45.7 °C as the gas is…

A: For adiabatic process: q=0  We know that, ∆U = q + w  ∆U = w = nCv,m∆T ∆T=Tf - Ti  Tf = Final…

Q: a) The structure of penicillin G is shown below. Circle the most acidic proton in the structure and…

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Q: 1.Name the following alkenes according to the IUPAC nomenclature rules. Determine if the…

A: There are 2 types of alkene on basis of the priority group-  1- (E)- alkene in which higher priority…

Q: Material X has an atomic radius R = 0.125 nm, an atomic weight of A = 51 g/mol, and a body centered…

A: Answer: Density of BCC crystal structure can be calculated using following formula: d=Z×MNA×a3 Here:…

Q: Please answer this question as fast as you can please and tahnk you. I will afterwards write an…

A: In the titration we used a primary standard solution to determine the concentration of unknown…

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.