What is the pressure in a 28.0-L-cylinder filled with 38.5g of oxygen gas at a temperature of 343 K? Express your answer to three significant figures with the appropriate units. P- Value Units ?

Q: Balance the equation Li+CO2+H2O------>LiHCO3+H2

A: A balanced chemical equation contains equal number of atoms of each elements on both sides of the…

Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION…

A: Given reaction is, Li2SO3(s) + HNO3(aq) ----> ?   Here , Li2SO3 is Lithium sulfite and HNO3 is…

Q: ▾ Part A For the following systems at equilibrium A: 2NOCI(g) B: H₂(g) + I2(g) = 2HI(g) classify…

A: Part A:     Following systems at equilibrium are :    A: 2NOCI(g) <====> 2NO(g) + Cl2(g) Here…

Q: Consider the reaction 4NO2(g)+ O2(g)→ 2N2O5(g) At a particular time during the reaction, nitrogen…

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Q: Calculate the theoretical yield and the percent yield for the reaction of aluminum and ozone…

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant…

Q: A 4.45 g sample of an ideal gas occupies 0.860 L at 23.1°C and 1.025 atm. What will be its volume at…

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Q: Calculate the equilibrium concentration of H₂. Express the molarity to three decimal places.

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Q: Which component of the Flame-AAS is responsible for source modulation? What is the importance of…

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Q: A gaseous mixture of O2 and N2 contains 30.8% nitrogen by mass what is the partial pressure of…

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Q: A 1.00 L flask is filled with 1.30 g of argon at 25 °C. A sample of ethane vapor is added to the…

A: Answer is given below

Q: CO in a sample of 3.2 L at 0.9 atm and 25°C answer in right sig figs What is the respiration rate…

A: Ideal gas equation is PV=nRT P=pressure V=volume R=universal gas constant R=8.314JK-1mol-1 n=number…

Q: In a nuclear reactions we must account for protons, neutrons, and electrons, as well as write out…

A: Nuclear reaction : It is a type of reaction in which two or more nuclei collide or a subatomic…

Q: 15. An imine would be produced in which of the following reactions?

A: Given : name of compounds.  Tip : imine formation formed when aldehyde or ketone react with primary…

Q: Convert the pressure measurement of 251 torr into units of mmHg.

A: The Answer to the following question is- Both torr and mmHg(millimeter of mercury), is unit of…

Q: 6. For each of the following neutralization reactions, predict the products & balance the equation:…

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Q: Lithium sulfate (Li2SO4) reacts with calcium nitrate (Ca(NO3)2) to form calcium sulfate and lithium…

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant…

Q: 2 HO ill Br Br- CI- CH3 H H -H CH3 S-3-bromo-2- methylbutane

A: Basic rules for IUPAC nomenclature: 1) Select longest chain of carbon atoms.  2) Start numbering…

Q: Predict the starting alkyl chloride that would produce the product shown in the SN1 reaction. Assume…

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Q: 4Al(s) + 3O2(g) -> 2Al2O3(s) deltaH is -3352kj is this exo or endo!

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Q: 13.12 Estimate the chemical shift range expected for 'ii' in the ¹H-NMR spectrum of the molecule…

A: The chemical shift value for ii is given as :

Q: Ideal gas constant, R. (L.atm.mol-¹.K-¹) Now calculate the ideal gas constant, R. (0.03200L) (0.9572…

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Q: how do we identify stereogenic centers?

A: Organic compounds are the compounds that contain carbon and hydrogen atoms.We have been given four…

Q: Consider the following data. For the acid:  H2A Ka = 4.21⋅10−44.21⋅10-4 Calculate the Kb for HA-.…

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Q: The first-order decomposition of a colored chemical species, X, into colorless products is monitored…

A: Lambert beer's law Absorbance=Ecl

Q: If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by…

A: Given data :

Q: Glycosaminoglycans (GAGs) are heteropolysaccharides composed of repeating disaccharide units. These…

A: Answer is given below

Q: Explain why graphite furnace atomisers provide enhanced sensitivity over flame atomisers in AAS…

A: Advantages of graphite furnace atomisers over atomic absorption spectroscopy

Q: Question 13 of 24 If you have 155 mL solution of a 0.762 M FeCl, solution, how many grams of FeCl…

A: Given, Concentration of FeCl3 solution = 0.762 M = 0.762 mol/L Volume of FeCl3 solution = 155 mL =…

Q: Draw the missing reagents or products, as appropriate, in the following Diels-Alder reactions: CH3…

A: Incomplete question. Asking is complete the given reaction?

Q: A 100.0 mL solution containing 0.756 g of maleic acid (MW 116.072 g/mol) is titrated with 0.217 M…

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Q: What is the major product between the reaction of 2-methoxypentane and HBr reagent?

A: In the given reaction ether reacts with hydrogen bromide to form an alcohol and alkyl bromide. The…

Q: A cylinder filled with CO2 is often used to carbonate fizzy drinks. After some use, the pressure of…

A: Answer: Given data of CO2: P=113400PaV=60.00LT=297KR=0.082L-atm/mol-K

Q: The triprotic form of the amino acid lysine is shown below, along with the pKa value for each…

A: Here we have to say in monoprotic form of lysine site A,B and C will be protonated or unprotonated-

Q: how can i tell if this is optically active

A: If in a given molecule or compound,plane of symmetry is present ,then it is optically inactive. And…

Q: An aliquot of 20 ml of skim milk was placed in an Erlenmeyer flask. To the flask was added 3 to 4…

A: A 20.0 mL sample of a skim milk is titrated against a standardized 0.101 M NaOH solution using…

Q: Calculate the solubility at 25 °C of Co(OH)2 in pure water and in a 0.0180M CoCl₂ solution. You'll…

A: The maximum amount of a chemical that will dissolve in a given amount of solvent at a given…

Q: Calculate the pH of a 0.4810 M aqueous solution of potassium hydrogen carbonate, KHCO3. Use the…

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Q: X STARTING AMOUNT 0.400 0.400 L x 0.350 mol KBr 1 L X = 16.7 g KBr 0.350 1 mol KBr X What is the…

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Q: For the equilibrium 21Br(g) 12(g) + Br₂ (9) K₂ = 8.5 x 10-3 at 150 °C. ▼ Part A If 2.2x10-2 atm of…

A: The balanced equilibrium reaction is: 2IBR(g) ⇌ I2(g) + Br2(g) ; Kp = 8.5*10-3

Q: alance the chemical equation by adding coefficients as needed. equation: FeCl₂ (aq) + KMnO4 (aq) +…

A: The balanced chemical is the equation in which the number of atoms of each element on either side of…

Q: Calculate the pH and the equilibrium concentrations of H₂PO4, HPO42- and PO4³- in a 0.0960 M aqueous…

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Q: Le Chatelier's Principle and Equilibrium Shifts 1. If the reaction below is initially at…

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration…

Q: Briefly describe three factors that contribute to the deviations in Beer's Law.

A: We have to describe the factors that contribute to the deviation in Beer`s Law

Q: Reasons for controlling pH within certain specified limits are:  A. Chemically stability  B.…

A: Reasons for controlling pH within certain specified limits are Option E i.e All of these. (Chemical…

Q: A 65.0 mL solution of 0.109 M sulfurous acid (H₂SO,) is titrated with 0.109 M NaOH. The pK, values…

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Q: Select the preferred product for the following reaction. Assume proper work up. SCH3 A Br CN B NaSCH…

A: This is an example of SN2 reaction. This reaction takes place in one single step via transition…

Q: 9. What is the base form of... a. H₂O conjugate base = OH* b. HF conjugate base = F- c. HPO4²-…

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Q: 8. How many chirality centers are present in the compound below? A. 0 B. 1 C. 2 D. 3 E. 5 9. Which…

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Q: and Question: How does temperature affect the rate of diff 1. Observe: Set the temperature (Temp.)…

A: To explain how temperature affect the rate of diffusion

Q: A 26.7 mL sample of 0.292 M ethylamine, C₂H5NH2, is titrated with 0.322 M perchloric acid. (1)…

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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.