How many moles of carbon dioxide are contained in 53.7 g of CO2?

Q: If 34.0 L of a gas is collected at 21 °C and 135 kPa, what is its volume at STP? V = L

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Q: 4. Show the steps necessary, in order, to make each of the following compounds. Start with benzene,…

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Q: The problem that occurred while assigning oxidation numbers to the atoms and the set of oxidation…

A: The structure of the given ion is ;                               O--S-C≡N  The rule for determining…

Q: Arrange these elements according to first ionization energy. Highest ionization energy Kr Br Se As…

A: Here we have to determine the correct decrease order of ionisation energy of the following given…

Q: HCl+NH3 >>>>> NH4 Cl 0.134 moles of HCl are reacted with 0.211 moles of NH3 When 0.134 moles of…

A: Answer:- This question involves the use of stoichiometry which involves the relationship between…

Q: counterions. HCI Select to Draw 0:0

A: Explanation : Given reaction is an acid base reaction . In which pentan-1oate ion  act as bronsted…

Q: Gas trapped in 3.0 L bottle at a temperature of 273 K and pressure of 105 kPa is heated until the…

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Q: The balanced equation below describes one method of making AlCl. 5.40 grams of Al and 5.33 grams of…

A: Aluminum reacts with chlorine to form aluminum chloride. The equation for the balanced chemical…

Q: 4) Use a Newman projection to show the most stable conformation of 4-isopropyl-2,3-dimethylheptane…

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Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: Note: As per the guidelines solution of first question has been made. For the expert solution of…

Q: 2. Draw two Neman projections of the molecule 4,5-diethyloctane looking down the C4- C5 bond. Use…

A: The Newman projection represents the dihedral angles of different conformations of a molecule. In…

Q: reaction should occur in each of these?

A: In a double displacement reaction if one of the product formed is is in solid state then that double…

Q: How much aluminum oxide and how much carbon are needed to prepare  527  g of aluminum by the…

A: Given, 2Al2O3 + 3C ----> 4Al + 3CO2 Mass of Al prepared = observed yield of Al = 527 g % yield =…

Q: d. $10.32 Calculate the [OH] of each aqueous solution with the gia Ostest following [H3O+]: moitulo:…

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Q: 3. Tris(hydroxymethyl)aminomethane [ (HOCH₂)3CNH2, commonly called "Tris" ] is a good…

A: #3: Tris buffer has "Tris-HCl" as the weak acid and "Tris" as the conjugate base. Given the pKa of…

Q: How many g of NaHCO3 are required to make 59.9 mL of a 0.511 M solution? Give your answer to 3…

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Q: 4) A mixture weighing 28.516 g contained 4.518 g NH4C1, 15.250 g SiO2, with the remainder being…

A: Given data is Weight of the mixture=28.516 g  Weight of NH4Cl = 4.518 g  Weight of SiO2 = 15.250 g…

Q: Calculate the each initial CONCENTRATION for Pb(NO3)2 and KI before filling-out this chart. (Refer t…

A: Given: Mass of each salt dissolved = 0.331 g Volume of each solution = 100 mL = 0.1 L Molar mass of…

Q: 1. The number of valence electrons is indicated by what periodic table number? 2. Metals tend to 3.…

A: Periodic table: The arrangement of elements in charts helps in determining the chemical and physical…

Q: Please describe how you would proceed to isolate and quantify Vitamin C in oranges, assuming a…

A: Solutions- Isolate and quantify Vitamin C in oranges.

Q: 2)A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: To calculate the atomic mass using the isotopic mass and their abundance, we would use the formula :…

Q: the molecular formula for each molecule below. Give the hybridization and the electronic and cular…

A: We are given three molecules. We are asked to tell the hybridization ,electronic geometry and…

Q: 3. Propose a reasonable reaction mechanism for the following transformation. OH Ho for FO H3O+ H₂O

A: This is a rearrangement reaction where acid hydrolysis is taking place and via certain steps we are…

Q: A compound is 40.0% C, 6.70% H, and 53.3% O by mass. Assume that we have a 100.-g sample of this…

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Q: The pH of vinegar is 3, baking soda is 9, bleach is 13, and tomato juice is 4. Therefore baking soda…

A: Given: The pH of vinegar = 3 The pH of baking soda = 9  The pH of bleach = 13 The pH of tomato juice…

Q: Suppose a 2.00-mol sample of an ideal gas at 300 K expands from a volume of 6 L to a volume of…

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Q: Use the Solver function in Excel to determine [Sr2+][Sr2+], [F−][F−], [HF][HF], [OH−][OH−], and…

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Q: How many moles of Nitrogen gas will react with 25 moles of Hydrogen gas in the following reaction?…

A: In this question, we will determine the moles of Nitrogen gas.  Given : moles of Hydrogen gas =…

Q: The chemical reaction that causes iron to corrode in air is given by 4Fe+302 2Fe203 with AHrxn =…

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Q: A) To 0.5 mL of 3% (or 6% whichever is available in the lab) hydrogen per- oxide, H₂O₂, solution add…

A: For each reaction (test tube A,B, and C) write balanced half-reactions and a total reaction in ionic…

Q: A new analytic instrument is capable of detecting picogram quantities of a chemi- cal substance. How…

A: We have given a new analytic instrument is capable of detecting picogram quantities of a chemical…

Q: 1. How many moles of NaOH (FW = 40g/mol) are there in 2.0 grams NaOH? 2. How many grams of Na2CO3…

A: moles of NaOH = mass / FW = 2.0 g / 40 g/mol = 0.05 moles NaOH

Q: 1. How many moles of NaOH (FW = 40g/mol) are there in 2.0 grams NaOH? 2. How many grams of Na2CO3…

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Q: Chemistry Demonstrate using energy plots of E vs. progress of reaction and accompanying brief…

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Q: 34.80 grams of Cr(C2H3O2)3 are dissolved in enough water to prepare 650.0 ml of solution. How many…

A: we have to calculate the volume of Cr(C2H3O2)3 solution in mL needed to produce 0.0280 mol acetate…

Q: How much mass (in mg) of a protein (MW = 125 kDa) is in a 300 μL of a 200 μM solution? Show…

A: According to the question we have, The molecular weight of the protein is = 125 kDa The volume of…

Q: 1)Acetylene (C,H2) gas is often used in welding torches because of the very high heat produced when…

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Q: Convert 5.0 x 103 mL to Liters

A: Given : Volume = 5.0×103 mL

Q: #5: The structure of dibenzoyl peroxide, the active ingredient in Clearasil® acne treatment, is…

A: Dibenzoyl peroxide in the polymerization of ethylene acts as a radical initiator. Under high…

Q: Driving 1000 miles a month is not unusual for a short-distance commuter. If your vehicle gets 23.30…

A: Balanced chemical equation: 2C8 H18    +    25O2     ----->   16CO2    +    18H2O  1 Gallon =…

Q: Determine AH, q, w, and AE at 298 K and 1 atm pressure for the reaction of 9.211 g of NH3(g) with…

A: Given, Pressure = 1 atm, Temperature= 298 K, Mass of NH3 = 9.211 g

Q: Crastin® (CAS# 24968-12-5) is a polybutylene terephthalate (PBT) thermoplastic engineering polymer…

A: The given structure of polymer, Crastin(PBT) is made of two different monomers.  Hence Crastin is a…

Q: What is a "heuristic method"? (a) Give a short (not more than two sentences) explanation. (b) Give…

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Q: sample of an ideal gas at 1.00 bar and a volume of 1.37 L was placed in a weighted balloon and…

A: Given -> Initial pressure (P1) = 1.00 bar  Initial volume (V1) = 1.37 L Final pressure (P2) =…

Q: Chemistry 9. Assuming 100% dissociation, calculate the freezing point (Tf) and boiling point ( Tb)…

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Q: 5)In a certain chemical reaction Compound A combines with Compound B to produce Compound C (and no…

A: Percent yield of a reaction is calculated by the following formula. % yield = Actual yield…

Q: As a pathologist, you run an assay and find an abnormally high level of EPO. What cells types will…

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Q: A mixture of three compounds A, B, and C spotted on an alumina TLC plate gives the following Re…

A: Given :  Rf Value of various compounds  are given. And also the Given methanol is polar solvents. To…

Q: the chemical formula for sodium thiosulfate pentahydrate.

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Q: There are five chirality centers in the following molecule. Identify each asymmetric carbon atom by…

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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.