Calculate mass percent composition of carbon in each compound. a.) C2H2 b.) C3H6 c.) C2H6 d.) C2H6O

Q: Determine thev molar masses of these compounds  d)C2H5OH e) HC2H3O2 F) Fe3O4

A: Note : As per our guidelines we are supposed to answer first 3 parts. Please repost other parts as…

Q: How many grams of C are present in 4.19 grams of carbon tetrafluoride?   How many grams of carbon…

A: Given   (i)   Mass of CF4  = 4.19 gram       Mass of carbon = ? (ii)  Mass of F = 4.61 gram…

Q: 21. A compound contains 70.6% carbon, 5.9% H, and 23.5% O by mass. The molecular weight of this…

A: Molecular formula of a compound tells the number of different atoms present in the compound.…

Q: 48. How many molecules of caffeine, C4HSN2O, are there in 18 g of caffeine? a. 1.12 ×10E23 b. 1.05…

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Q: HN CH3

A: The given figure is a line diagram of the compound. To calculate the number of each atom we need to…

Q: 1. How many MOLES of carbon tetrabromide are present in 1.74 grams of this compound ? moles. 2. How…

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Q: represents tne A 27.29 g 6.41 g 27.29% C 17.09 g 72.71 g O2 72.71% 100% CO2 100.0 g CO2 23.5 g CO, |…

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Q: Run 2: Initial grams of NaHCO3 %3D

A: The balanced chemical equation has the number of atoms of the reactants becomes equal to the atom…

Q: Which of the following is a molecular compound? A) LiOH B) ZnS C) KCN D) BaCl2 E) P4O10

A: Mainly compounds are classified into ionic and molecular compounds.  (1) Ionic compounds are those…

Q: 1. How many MOLES of dinitrogen monoxide are present in 1.90 grams of this compound ? moles. 2. How…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What about the percent N in the ammonia ion NH4+?

A: Ionic weight of ammonium ion, NH4+ is 18.04 amu.

Q: A given compound contains 23.8% S, 23.7% O, and 52.5% Cl by mass. Which compound below is consistent…

A: The molar amounts of given atoms in 100 grams sample is determined by dividing each atom by its…

Q: Calculations Using the Mole Learning Goal: 2.32x1023 13C atoms To learn how to convert grams to…

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Q: Which sample contains the greatest number of atoms? 54.7 g V 51.2 g Mn 203 g Bi

A: To find number of atom we have to calculate number of moles first. Moles= given mass/molar mass…

Q: Nal (1 mol) a) C3H10CII acetona Br .SNa b) Br + NaS .CI Na,s C4H&S c) CI

A: (a) When 1,3- dichloropentane is treated with sodium iodide in acetone , then Finkelstein Reaction…

Q: Which is expected to have AS°rxn < 0? 1.4Al(s) +302(g) → 2A12O3(s) 2. PCI5(g) PCI3(g) + Cl2(g) 3.…

A: If heat flows into the system from the surroundings, Delta S of the surroundings is less than zero.

Q: Determine thev molar masses of these compounds  a) KBr b) Na2SO4 c) Pb(NO3)2

A: Note: As per our guidelines, we are supposed to answer only the first three subparts. Please repost…

Q: Identify compounds A-M in the following reaction sequence.

A: Given,

Q: Determine the number of moles of H in each sample.(a) 4.67 mol H2O (b) 8.39 mol NH3(c) 0.117 mol…

A: Number of moles of a substance is the mass of substance present in a liter of solution.

Q: What is the empirical formula for the compound made from Y3+ and Cl? Select one: a. YCI3 b. Y3CI c.…

A: Empirical formula is simple whole numbered ratio of atoms present in compound.

Q: 2NO(g) + O2(g)→2NO2(g) | 2KMNO4(s)→ K2MNO4(s) + MnO2(s) + O2(g) CH=CH(g) + H2(g)→ CH2 =CH2(g) Na(s)…

A: We are well-known to us that, the entropy measures the degree of randomness. So, as the degree of…

Q: A sample of NH3 has a mass of 84.06 grams.   Calculate the moles of NH3 in the sample.…

A: Given : Mass of NH3 = 84.06 g

Q: I need help balancing equation(e) on the file attached below

A: Balancing the chemical reaction means the number of atoms present in the reactant side is equal to…

Q: Draw the products of each reduction reaction.

A: Hello. Since the question contains multiple sub-parts, the first three sub-parts will be only…

Q: What is the percent by mass of carbon

A: Percent by mass = (mass of C/total mass of compound) × 100%

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

A: We have given that  A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g  calculate the moles and…

Q: Part B The molecular formula mass of this compound is 210 amu. What are the subscripts in the actual…

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Q: H2SO4 Но CI NH2 1) A D O, H3O* NAOH 2) РСС, 1) ЗCН31 CH2Cl2, A 2) Ag20, H-0, Д C E B

A: The question is based on the concept of organic reactions. we have to identify the product formed in…

Q: Calculate the mass percent of C in CH4 (you can use 1 mole of methane as the basis for your…

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Q: Mass of Crucible and Cover= 62.17 g Mass of ……… and solid hydrate= 63.28 g Mass of ………. And residue=…

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

Q: .CH3 1.ВНя/THF a) 2. H2O2/-OH Br KOC(CH3)3/isi b) OC2H5 1. 2 mol C6H5MGBR 2. Hзо"

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: 1. DIBAH, -78 °C 2. HСI mCPBA (RCO3H) CF;SO;H

A: Given 1 Product = to be determined  2 Reactant = To be determined

Q: °C. Mass of Mg = g %3D

A:

Q: 25. A sample of a compound contains 9.49g silver and 3.12g chlorine. A second sample of the compound…

A: Given: 1) A sample of a compound contains Silver with mass = 9.49 g 2) A sample of a compound…

Q: 34 - Find the rough formula of the compound containing 38.67% C, 16.22% H, and 45.11% N by mass. A)…

A: Correct answer is B

Q: 1. Compute the formula mass/molecular mass of, A. Carbon Dioxide i. Compute the number of moles in…

A: Given,  Compute the formula mass/molecular mass of (A). Carbon Dioxide i. Compute the number of…

Q: Determine the number of atoms in 27.0 grams of bromine, Br. (The mass of one mole of bromine is…

A: Given : mass of 1 mole of bromine i.e Br = 79.90 g And mass of Br = 27.0 g

Q: 24. cont. NACN, (CH,),NCHO 30°C 1) NABH4 H 2) НC\ag) iBr KOH, CH;CH,OH f) 78°C Itt 1) Hg(O,CCF3)2,…

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Q: Determine the number of atoms of C in 24.8 grams of CH1206- atoms 1 3 4 C 7 9. +/- x 100 2. 5

A: Given : Mass of carbon = 24.8 g Compound = C6H12O6 To Find : Number of atoms Solution : Number of…

Q: 3. The average atomic mass of an atom is expressed in c. g/mol a. grams b. amu d. moles 4. Which…

A: Choose the correct option of the following --

Q: A compound is found to contain 37.47 % carbon, 12.61 % hydrogen, and 49.92 % oxygen by weight.

A: In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of…

Q: Calculate the Percent Composition by mass of the given compound: KNaC4H4O6∙4H2O Percent mass of K…

A: Percentage mass of any element in a given compound can be calculated as (mass of the element divided…

Q: The number of hydrogen atoms in 0.500g of glucose (C6H12O6) is a. 12 b. 1.67x1021 c. 2.78x10-3 d.…

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Q: What is the mass of 4.9 moles of N2O5?   a.   52.92g   b.   5.292g   c.   0.5292g…

A: We have given the moles of N2O5 = 4.9 mole

Q: (d)Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Cl in the compound?…

A: Number of moles = mass / molar mass  % by mass =( mass of Cl atoms in Mn(ClO4)4 / mass of 1 mol of…

Q: Which one of the following statements about the compound C3H4 is CORRECT? Oa. One mole of C3H4…

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Q: sample of propane, C3H8 C 3 H 8 , contains 11.5 moles m o l e s of carbon atoms. How many total…

A: C3 H8 contains 3 carbon and 8 hydrogen . So 1 mole contain 11 mole of atom.

Q: Two compounds have the same composition: 92.25% C and 7.75% H. a. Obtain the empirical formula…

A: To find :  a) empirical formula  b) molecular formula   Formulas used -  number of empirical units…

Q: How many grams of C are present in 1.66 grams of carbon tetrachloride?  how many grams of carbon…

A: To calculate the mass of constituents present in a compound, we must have the molar mass of…

Q: 1. How many MOLECULES of nitrogen monoside ace present in 4.22 grams of this compound ? molecules 2.…

A: Avogadro number: Given by Avogadro, According to him, 1 mole of substance contain 6.022×1023 number…

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.