• How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund mokofE أعصداحعلح 1. mole ofE any substancecontains Coo022x1023 particlei.

Q: 2. 3. Br WO Br Na I acetone H₂0 CH3OH Na N3 DMF

A: In polar aprotic solvents like DMF, acetone, DMSO etc, the secondary alcohol undergoes SN2…

Q: 1. How many MOLECULES of xenon trioxide, XeO3, are present in 6.25 grams of this compound? 2. How…

A: Since you have posted multiple questions according to guidelines I am solving first two.If you want…

Q: 4. Many common dry-chemical fi re extinguishers contain ammonium phosphate, (NH4)3PO4(s), as their…

A:

Q: A model of the ethanal molecule is shown in the window below. progress ball & stick- + labels HO a.…

A: 1 mole = 6.022 x 1023 atoms/molecules/entities

Q: A leak in the air conditioning system of an older car releases55 g of CF2Cl2 per month. How much Cl…

A: The given data contains, mass of CF2Cl2 = 55 g.

Q: % transmittance nitrile 4000 3.0 3500 2.6 CH (sp³) 3000 2.2 1.8 Molecule 13 2500 C=N 2000 wavenumber…

A: Spectroscopy deals with the transitions that a molecule undergoes between its energy levels upon…

Q: A 0.000937 g sample of an unknown compound, composed only of carbon and hydrogen, produced 0.00274 g…

A: 0.000937 g sample of an unknown hydrocarbon Made up of carbon and hydrogen only produces 0.00274 g…

Q: 7,(0) Compound X has the following percentage composition by mass: C: 38.9% ; H: 5.4% ; Cl: 38.4%;…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The compound benzene contains 92.26% C, the remain is hydrogen and has molar mass of 78 g/mol. what…

A: Molar mass of Benzene = 78 g/mol % of C = 92.26%  Molecular formula of benzene = ?

Q: (a) Calculate the number of moles of C and H present in the compound. (b) Find the mass percentages…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A chemist mixes 82. g of benzene with 89. g of isopropenylbenzene and 61. g of acetone. Calculate…

A: Dear student since you have posted multiple questions, As per our company QnA guidelines We are…

Q: so, (sulfate) NO, (nitrate) co, (carbonate) Chemical How many S0, ? Chemical How many NO, ? Chemical…

A:

Q: There are 1.2 x 1024 atoms of carbon in a sample of aluminum acetate, Al(C₂H3O2)3. How many moles of…

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Q: 1 How many ices are there in .187 mol of Na kon

A: Avogadro number of ions are present in one mol of ions. So,1 mol of an ions contain 6.022×1023…

Q: а) b) NH₂ -UN он г. NH4 , H2O 1. CM3 I (excess) 1. Ад20, H2O 3. Д ? раз ?

A: a) First reaction is epoxide ring operation in basic medium(i.e. attack on less substituted carbon…

Q: 12 (a) Calculate the # of moles of the alement present in 99.9 g of nickel (b) Calcolate the mass in…

A: Given a) Mass of Ni             = 99.9 g b) No.of moles of Ni = 0.251 mol c) No.of moles of Ni  =…

Q: how many moles of cocl3 are in 172.6 ml of a 19.6% mass sloution of cocl3 which has a density og…

A: You have given total volume and density, then find the mass of the solution to get the % mass of the…

Q: How many moles of Al are present in 5 moles of Al₂S3 ?

A: Answer: This question is based on stoichiometric calculation where moles of Al2S3 needs to be…

Q: Calculate the mass of each of the following gases a) 1.61 of methane (CH4) b) 1282cm3 of sulphur…

A: Given,  a). 1.6 L of methane  b). 1282 cm3 so sulfur dioxide  c). 4 L of neon  d). 0.1 L of nitrogen…

Q: 2. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: a. Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

Q: How many moles of xenon are in 1.00 g? 1.00 g Xe =

A: given,  mass of Xe = 1.00 g   we need to calculate moles of xenon

Q: Calculate the mass percent of 2.50 moles of NaOH in 0.900 L of water at 25 C (degrees Celsius) (the…

A: Given: moles of NaOH = 2.50 mol Volume of water = 0.900 L                            =900 mL…

Q: Q1 / What is the molecular weight of O SC ?? Note that S = 32.06 CI = 35.45 %3D %3D

A: molecular weight of OSC is :

Q: How many ions of S are present in 5 moles of Al2S3? [x 10¹ Sions X Make sure your answer is in…

A: The question is based on mole concept. we have to calculate number of ions present in given quantity…

Q: H2N ОН IZ

A: 4 carbon atoms are present in above molecule.

Q: Actual weight of Na,CO, used mass Na,CO, + beaker = 1니3.525 %3D mass beaker = 142.313 g %3D mass…

A: For Na2CO3, Molecular weight=2(Atomic weight of Na)+Atomic weight of C+3(Atomic weight of O)

Q: HO. Na2Cr2O7 H2SO4, H₂O SOCI₂ OH H3O+ 1. LIAI(OMe)3H 2. H3O+ excess NH3

A: The reaction scheme is shown below.We have to provide the missing products and reagents.

Q: 1916w ni Y bas X to viiliduloa sru sušquon A 1.4745 g sample of Y was burned in a combustion…

A: Answer :-----

Q: The effectiveness of nitrogen fertilizers depends on boththeir ability to deliver nitrogen to plants…

A: Four common nitrogen-containing fertilizers, Ammonia - It is a gas but it could be compressed into…

Q: How many oxygen atoms are on the right-hand side of the following chemical equation? Express your…

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Q: :12hcyA/viewt What is the mass of 1.34x10^25molecules of Magnesium? * O 204g O 541g O 72,900g O…

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Q: The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104…

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Q: * 00 Cl Σ %24 d. Be sure to answer all parts. Cisplatin (right), or Platinol", is a powerful drug…

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Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: Use the Referen a. How many ATOMS of carbon are present in 1.17 grams of carbon monoxide? atoms of…

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Q: Q11 (B) Calculate the mass of 941 molecules of Al2(SO4)3.

A: Molecular Mass : The molecular mass of any compound is defined as the mass of one mole of that…

Q: If 8g of element Q contains 1.204 X 1023 mol-, calculate the relative atomic mass of element Q.…

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Q: If the weight of calcium oxalate is 2g and weight of ammonium oxalate is 0.15 g then te percentage…

A: Given that Weight of  calcium oxalate (CaC2O4) = 2g  Weight of  ammonium oxalate ((NH4)2C2O4) = 0.15…

Q: 5. 20 a LDA Η,Ο

A:

Q: Suppose 2.60 g of chlorine, Cl2, are used to prepare dichlorine pentoxide, Cl2O5. How many moles of…

A: Ans. Dichlorine pentoxide formation: (a) moles of oxygen             2Cl2+5O2 → 2Cl2O5      (2…

Q: Molar Mass Calculation (use masses on periodic table) H,PO, (NH,),SO,

A: (a) H3PO4 According to periodic table, Mass of H = 1.008 amu Mass of P = 30.974 amu Mass of O =…

Q: A sample containing NaCl, Na₂SO4, and NaNO3 gives the following elemental analysis: Na: 32.995…

A: Suppose the total mass of sample is 100 g. Then, the mass of Cl is 14.61 g Each NaCl unit has one Cl…

Q: How many atoms of hy drogen are represented in the formulat (NH_(4))3PO_(4)?

A: In this question, we will determine the total number of hydrogen atoms are present in (NH4)3PO4

Q: 2. a) How many moles of C0, are in 68.0 g of CO,? Jeam O1OH 1o salom vasnm b) How many atoms of…

A: Note : As per our guidelines we are supposed to answer first 3 parts please repost the other Parts…

Q: How many atoms of sulfur are in the 71.0 g Na₂SO4 sample? [?] × 10²] atoms S

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Q: Element Atomic Weight (g/mol) Percent Composition Ni 58.6934 36.3% Fe 55.845 17.3% As 74.9216 46.4%…

A: The percentage composition of each element in the compound is given as, Assuming 100 g of the…

Q: Determine the number of moles in 2.58 kg of lithium Sulfate (Li₂ sou) Balance this equation: -NH3t…

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Q: 1. What mass of potassium chlorate would be needed to form 56.8 g of oxygen? 2KCIO3 ----> 2KCI + 3…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

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.