Given the following average atomic masses (in atomic mass unit, u), Hydrogen: 1.008 u, Oxygen: 15.999 u, and sulfur: 32.06 u. What percentage of sulfuric acid’s (H2SO4) mass is oxygen? Express your answer to 2 decimal places.

Q: OH 4-ethyl-2-methyl-3-heptanol 3-ethyl-2-methyl-4-heptanol None of the choices are correct…

A: Here as numbering is shown below

Q: Ē Problems 12.69 Which of the following aqueous solutions has (a) the higher boiling point, (b) the…

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Q: Enantiomers are a pair of molecules that are mirror images that are non- superimposable. Identify…

A: Answer: Enantiomers are the stereoisomers those are non-superimposable mirror images of each-other.

Q: A cube of solid benzene (C6H6; M = 78.11 g/mol) at its melting point and weighing 8.90 g is placed…

A: Given data is Molar mass of  benzene 78.11 g/mol Mass of benzene placed in water =8.90 g…

Q: Arrange the following elements in order of increasing electronegativity: carbon, germanium, silicon,…

A: The tendency of an element to attract shared pair of electrons is known as electronegativity.

Q: The movie below shows some molecules in a tiny sample of a mixture of gases. 9 10 11 12 13 14 15 16…

A: Here, the molecules are H2 , Cl2 and HCl

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A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on…

Q: The density of carbon tetra chloride (CC14), a harmful environmental g pollutant, is 1.59- Find the…

A: Given,  density of CCl4 = 1.59 g/cm3 volume = 10 L to calculate : mass of CCl4 (in g)

Q: You have to make 50 mL of 0.05M HCl from a 10M HCl stock solution, but the only measuring devices…

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Q: Consider the equilibrium system described by the chemical reaction below. At equilibrium, a 2.0 L…

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Q: structure of caffeine, acetaminophen, acetyl salicylic acid, and ibuprofen. Order them from most…

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Q: 2. Sometimes when performing a crystallization, one solvent alone will not work and you have to use…

A: Given solvent pair is hexane and diethyl ether. We have to mention can we use the above solvent pair…

Q: P15.29 The smallest observed frequency for a transition between states of an electron in a…

A: Please find your solution below : In quantum mechanics, particle in one dimensional box describes…

Q: KOH (concentration = 0.2205 M) is used in a titration to determine the amount of acetic acid…

A: Given :  Initial volume of vinegar sample = 50 ml  Volume of vinegar sample after dilution = 500 ml…

Q: How can colloids be distinguished from real solutions? Explain.

A: When solute and solvent are mixes then solution is formed,one the size of solute in solution there…

Q: 1. Write the formula, complete ionic, and net ionic equations involved in the reaction. Formula…

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Q: Enter the orbital diagram for the ion Au+. Drag the appropriate labels to their respective targets.…

A: we have to complete the given orbital filling diagram for Au+

Q: calculate and present at the correct significant digits: 76.32 - 34.9 537 +3.59 4.5 x 108 can…

A: Given expressions are  1) 76.32 - 34.9 2) 537 +3.59 3) 4.5 x 108 We need to calculate and express…

Q: Five lbs of propane is contained in a closed, rigid tank initially at 80 lbf/in.2, 150°F. Heat…

A: Given: Mass of propane= 5 lbs Pressure of tank= 80 lbf-in2 Initial temperature=150 oF Final…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: we have to calculate the mass of chloroform for the second sample

Q: H₂C CH₂ CH₂C CH C-CCH, CH, CH3 HBC CH3

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Q: How many moles of bromine are in .250 moles of Oxapyrazon?

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Q: What is the IUPAC name for the following molecule? Br

A: IUPAC nomenclature: In IUPAC nomenclature  a molecule's longest chain of carbons is taken as parent…

Q: Explain why 1,4-pentadiene is less acidic when compared to cyclopentadiene

A: A compound is said to be acidic if it easily loose hydrogen in the solution and its conjugate anion…

Q: Name the two compounds below. CI ОН

A: RULES FOR IUPAC NOMENCLATURE:- 1)Choose longest carbon chain. 2) Identify principal functional…

Q: the The density of ethanol is 0.789 g/ml. Find the mass of 20 ml of ethanol.

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Q: Which have cis-trans isomers? of the different ways that alkenes can have substituents, which one(s)…

A: Cis trans are the geometrical isomers in which there is double bonded carbon and each carbon have…

Q: (H₂O). If 14.7 g of Liquid hexane (CH₂(CH₂) CH₂) reacts with gaseous oxygen gas (0₂) to produce…

A: Given, mass of hexane =  19.8 g mass of oxygen gas = 46.1 g water produced = 14.7 g

Q: A tank of gasoline has a mass of 1.500 Mg (Mega gram) and a volume of 2.205 x 10^6 cc (cubic…

A: Here we are provided with mass and volume of the tank . We have to find the density.  Mass is given…

Q: A certain first order reaction has a half-life of 56.0 s. How long will it take (in s) for the…

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Q: If Kp = 641 for the reaction below at 310.0 K, then what is the value of Kc? Note Kc is sometimes…

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Q: Which of the following compounds is the major product of the reaction? OB OE OD OC OA OHC CHO heat A…

A: The given question is basically the pericyclic reaction. It's a example of [4+2]cycloaddition…

Q: Consider the following: The balanced half-reaction is A. NO3 +10H* +9e¯ → NH4* + 3H₂O B. NO3 +7H*…

A: In a balanced half reaction, atoms and charge needs to be same on both sides of the half reaction.

Q: In part 1 of this experiment you will be determining the enthalpy of vaporization of water. To do…

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Q: What Grignard reagent and what carbonyl compound might you start with to prepare the following…

A: Grignard reagent has nucleophilic character hence it can give nucleophilic substitution reaction to…

Q: What is the equivalent of 365.2 mi/hr2 to m/s2?

A: We have given 365.2 mi/hr2. We have to convert units from miles per square hour to metre per square…

Q: This table is all about ions. If you're not told the ionic charge, make it what charge to forms when…

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Q: Fentanyl is a type of synthetic opioid generally used for pain relief and anesthesia. It has the…

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Q: A student completes their TLC experiment, but can not visualize any spots on their plate under a UV…

A: Given: A student completes their TLC experiment, but can not visualize any spots on their plate…

Q: If the initial amount of Fe(NO3)3 transferred to the cuvette is 0.046 mol, and the absorbance…

A: Given Data : Initial Amount of Fe(NO3)3 = 0.046 mol Equilibrium amount of FeSCN2+ = 0.016 mol Total…

Q: The thermal process in which carbon dioxide gas, CO2, changes to solid carbon dioxide is called O a.…

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Q: What carbonyl compounds might you start with to prepare the follow- ing compounds by Grignard…

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Q: 1. Hypobromous acid (HOBr) is a weak acid (pKa = 8.6) that dissociates to form hypobromite anion…

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

Q: To balance the chemical equation SiO2+HF→SiF4+H2OSiO2+HF→SiF4+H2O, you could introduce coefficients…

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Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: The reaction between HCl and NaOH is  HCl + NaOH -------------> NaCl + H2O  Given , Mass of HCl =…

Q: What are Colloids and its properties? Why is it important for us to learn about Colloids?

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Q: Molecular Shape of NI3 (11N Central atom A (3) I (1) W A₁ B3 E₁ = A B3 E Step 1: Find the Central…

A: Answer: This question is based on the type of electron pairs present in the valence shell of central…

Q: 3. The amino acid histidine has a side chain with a pK, of 6.0. What percentage of the histidine…

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Q: What mass of insulin must be dissolved in 43.0 mL of water to produce a solution with an osmotic…

A: Given, Osmotic pressure (π) = 13.7 mmHg = 0.018 atm Volume (V) = 43.0 mL = 0.043 L Temperature (T) =…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".