A 0.0853 mol sample of an unknown gas contained in a 3.00 L flask is found to have a density of 1.37 g/L. The molecular weight of the unknown gas is g/mol.

Q: H ball & stick H G C + labels 27 H H ball & stick labels The name of the first compound is The name…

A: Ball- stick model is the 3D representation of a molecule. In IUPAC nomenclature generally we find…

Q: Identify the circled functional group. A) carboxylic acid B) aldehyde amide D) ester E) ketone

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Q: An aqueous solution of KCI (molar mass 74.5 g/mol) has a concentration of 1.85 m. If this solution…

A: Given: The concentration of the aqueous solution of KCl = 1.85 m The mass of water in the sample =…

Q: An aqueous solution of KCI (molar mass 74.5 g/mol) has a concentration of 1.85 m. If this solution…

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Q: We start with a pure sample of A(g). The following equilibrium is established: 2 A(g) B(g) + C(g)…

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Q: An aqueous solution of KCI (molar mass 74.5 g/mol) has a concentration of 1.85 m. If this solution…

A: Mole fraction of KCl can be calculated from the calculation of individual moles of water and KCl.

Q: A 9.055 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: Here we are required to find the molecular formula of the hydrocarbon.

Q: Tautomers A) are resonance forms of carbonyl compounds. B) are always equally stable. C) require a…

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Q: 1. Provide an unambiguous (IUPAC or common) name for each of the following molecules. Assign…

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Q: Consider the voltaic cell with a standard cell potential of 2.37 V: Mg(s) Mg2+ (1.0 M)||H† (1.0…

A: The change in gibbs free energy is related to both Ecell and equilibrium constant.

Q: Select the pair of compounds that will undergo a Robinson annulation to form the product shown. A) I…

A: ->In Robinson annulation first of all Michael addition reaction occur then Aldol condensation…

Q: (H₂O). Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce…

A: Given-> Weight of HCl = 0.729 gm Weight of NaOH = 0.44 gm

Q: Calculate how many milliliters of 0.140 M HNO3 should be added to 200 mL containing 2.00 g K2CO3…

A: Here we have to determine the volume in ml of HNO3 solution of 0.140M to be added to 200ml of  so2 g…

Q: Q5. A possible ion-molecule reaction mechanism for the synthesis of ammonia in interstellar gas…

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Q: thermometer A sample of quartz, which has a specific heat capacity of 0.730 J-g¹-C¹, is put into a…

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Q: 103 kJ + 2HBr(g) = H₂(g) + Br₂(g) K = 5.4 x 10-20 What is the equilibrium constant for the reaction…

A: In this question, we will determine the equilibrium constant ( K' ) for the second reaction which is…

Q: CaSO4(s) Ca²+ (aq) + SO3- (aq) K = [Ca ²+ ][SO²-] K= 3.2 x 10-5 R CaSO4(s) Ca2+(aq) + SO² (aq) I (M)…

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Q: Among the following molecules: I. HOCH2CH2CH3 II. FCH2CH2CH3 III. BrCH2CH2CH2Br IV. BrCH2CH2CH2CH3…

A: There are several types of interaction seen in molecules. Like H- bonding , vanderwaal force of…

Q: Classify each chemical reaction: reaction CH,OCH, () + 30₂(g) → 2CO₂(g) + 3H₂O(g) Na₂S (aq) + FeCl₂…

A: The correct answer about reaction types are given below

Q: An aqueous solution of KCI (molar mass 74.5 g/mol) has a concentration of 1.85 m. If this solution…

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Q: If mass of BCC Leaad Pb=207 g/ mol, and lattice parameter (a) =3.9211×10-8 cm,calculate the (الكثافه…

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Q: Chemistry Find the molarity of NaOH, net volume, and average molarity using the data given:…

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Q: Would adding Hel increase, decrease or does not affect the solubility of a) Co (clo4) 3 bCr brz (5)…

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Q: A major component of gasoline is octane (CH₂). When octane is burned in air, it chemically reacts…

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Q: Asap Explain the liquid organic mixes of methanol, 1-propanal, and 1-butanol should be separated,…

A: Given in following question 1). Explain the liquid organic mixes of methanol,1 propanal , 1 butanol…

Q: 13. The molar conductivity of 0.0300 M HF (aq) is 4.10 mS m² mol¹. Determine the acidity constant,…

A: Given data

Q: 1. Which of the following statements is NOT TRUE? a. In redox reactions, electrons are transferred…

A: (1) A redox reaction is the process in which one Substance get electrons from another Substance.…

Q: Ammonium perchlorate (NH4CIO4) is a powerful solid rocket fuel, used in the Space Shuttle boosters.…

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Q: Gaseous methane (CH4) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂)…

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Q: How many kilograms of lead must be added to 71 kg of tin to yield a Pb-Sn alloy having a composition…

A: Mass of tin = 71 kg % lead = 29% %tin = 71%

Q: 11) 4² Question 38 of 48 Match this condensed formula, (CH₂)₂CHCH₂CH₂OH, with the correct skeletal…

A: The correct skeletal drawing for given condensed formula is

Q: 1 of 11 ► Vitamin C has the formula C H₂O₂. You burn 0.117 g of the compound in a combustion…

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Q: H₂(g) + CO₂(g) = CO(g) + H₂O(g) K = 0.137 @ 823 K PH₂ = 0.33 atm Pco₂ = 0.25 atm Pco = 0.010 atm…

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

Q: acetylcholine

A: Acetylcholine is the neurotransmitter that is released from the nerve endings and it shows its…

Q: The diagram below is an electrochemical cell based on a redox reaction that needs to be completed by…

A: Recall the given redox reaction,                             Zn s  +  Br2 l  →  Zn2+ aq +  2 Br-…

Q: Consider the hypothetical first-order reaction below: B D Which of the following statements is TRUE?…

A: Given following balanced Chemical equation -  B -----> D  Also given that it is a first order…

Q: Question 14 Consider the voltaic cell: 2+ Sr(s)|Sr²+ (1.0 M)||H† (1.0 M)|H₂ (1 atm)|Pt(s) Which of…

A: In electrochemistry, the Nernst equation is used to calculate the cell potential of an…

Q: Krypton-79 has a half-life of 34.50 h. After 138.0 h, 54.25 kg of this radioistope is left. How much…

A: Given, the half-life of Krypton-79 is 34.50 hthe amount of radioisotop left after 138.0 h is 54.25…

Q: Give specific organic reactions for hydrohalogenation. Draw the skeletal or condensed structure of…

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Q: 1. H₂(g) + 1₂(g) → 2HI(g) K = 54 @ 700 K II. N₂(g) + 3H₂(g) → 2NH3(g) K 1.04 x 10-4@ 700 K What is…

A: If two reactions can be added to get a third reaction,then the equilibrium constant (Keq) for the…

Q: Which of the following is TRUE for the instantaneous rate? O The magnitude has a negative value for…

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Q: 1) For the following cell at 25°C: a) Zn(s) | ZnCl₂(aq) || AgCl (aq) | Ag(s) Write the…

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Q: If you have an element that gives a flame with a wavelength of 750 nm, what is the Energy of that…

A: Given: The wavelength of the flame = 750 nm We have to calculate the energy in J.

Q: A nitrate solution containing an unknown cation is added to each of the following three test tubes.…

A: The cations and anions can be identified based on the different types of chemical test. Each ion in…

Q: In Scotland, the legal blood alcohol limit is 220 μg of alcohol per 1 L of breath. What is this…

A: The parts per billion is the concentration measurement of a solution. It measures the concentration…

Q: Magnesium will burn in air to form both Mg3N2 and MgO. What mass of each product would be found if…

A: The mass of a compound is determined by the number of moles of compound and its molar mass. The…

Q: Provide the correct IUPAC name for the skeletal (line-bond) structure shown here.

A: IUPAC nomenclature rules for alkanes: Identify the longest continuous carbon chain. Identify the…

Q: A sample of gas has a pressure of 37.1 mm in a 125-mL flask. The sample is transferred to a new…

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Q: 6. Which of the following elements is the oxidizing agent? a. Hydrogen b. Iron c. Both of them d.…

A: A redox reaction is a reaction in which electrons are transferred from one species to other.…

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.