Find the molecular formula of the following compounds.

Q: Find the number of molecules in 55.0 g of acetaldehyde (C2H4O).

A: ∘ no. of moles = given massmolar mass∘ 1 mole = 6.023×1023 molecules∘molar mass of (C2H4O) =…

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: AB2 + 2 C --> 2 CB +  A (OR A B2 + 2 C right arrow 2 C B + B) Calculate the number of molecules of…

A: Given, AB2 + 2 C --> 2 CB +  A mass of AB2 react = 1.000 × 101 g = 10 g mass of C react = 9.5600…

Q: a 23.0 sample of a compound contains 12.0 g of C, 3.0g of H, and 8.0g of O. Which of the following…

A: The mass of the sample is = 23.0 g The mass of C = 12.0 g The mass of H = 3.0 g The mass of O = 8.0…

Q: Find the molecular formula of a compound that contains 30.45% nitrogen and 69.55% oxygen. The molar…

A: Molecular formula of the constituent elements is written as chemical symbol of elements. The number…

Q: How many formula units are contained in a sample of Cu3PO4 with a mass of 210 grams?

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Q: Martha sees a vile in her chemistry lab with the label C6H5O7. Her professor tells her it is…

A: Given formula: C6H5O7

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: Show all steps in the answers for the following questions and use significant figures in the…

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Q: What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for…

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Q: A compound contains 0.01492 moles of V and 0.03416 moles of Cl.  Calculate the ratio of moles of Cl…

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Q: A 11.32mg of an unknown chemical compound containing only C, H and O is submitted for elemental…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: n unknown compound contains only C, H, and O. Combustion of 4.30g of this compound produced 10.5 g…

A: Empirical formula of a chemical compound is defined  as simplest positive  integer ratio of atoms…

Q: The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O. The molar mass of…

A: We have given that percentage composition of mass of compound  Percentage of C = 76.0 %  Percentage…

Q: Determine the formula for a compound with 25.24% S, 74.76% F and a molecular weight of 254.112…

A: Let's determine the empirical formula of the compound first.

Q: A compound contains C, H and O as the elements.   A 20.0 g-sample is comprised of 1.34 g H and also…

A: Given that the mass of C and H in a compound of mass 20.0 g is 1.34 g and 8.00 g respectively. Mass…

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: Which would contain 9.03 × 1023 oxygen atoms? Avogadro Constant = 6.02 × 1023. 3.0 mol H2O   0.75…

A: This problem can be solved by knowing that one mole of substance consists of 6.022×1023 particles.

Q: Calculate the number of moles of O in each? a.) 2.3 mol H2O b.) 1.2 mol H2O2 c.) 0.9 mol NaNO3 d.)…

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Q: A Sample of a compound containing only carbon, chlorine, and fluorine was analyzed and found to…

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Q: Complete the following question, showing your work, including a complete BCA table. 4.5 moles PF3 =…

A: Phosphorous trifluoride decomposes to form phosphorous and fluorine. Two moles of PF3 gives two…

Q: A sample of Al2(SO4)3 contains 11.2 g of oxygen, find the number of moles of Al2(SO4)3   0.0979 mol…

A: The molar mass of an element can be defined as mass in grams of 1 mole of that substance. It is…

Q: Find the molecular formula of a compound with the empirical formula C3H3N and a molar mass of 212.3…

A: Empirical formula of a compound is the simplest ratio of atoms present in a compound while molecular…

Q: Calculate the mass of carbon dioxide produced from 15.6 g of octane, C8C18, in the 2C8H18(g)…

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Q: Calculate the number of moles and molecules of 35.00 grams glucose (C6H12O6). How many atoms of C…

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Q: Tennantite is an ore of copper with the formula Cu12As4S13. How many moles of copper are present in…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Calculate the number of grams in each of the following ? A. 4X2S 810-4 mol H2SO4 B.4.5x 1022…

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Q: Calculate the number of molecules in 43.0 g Ca(CH3COO) Must Show work with units and correct number…

A: Given that : Mass of Ca(CH3COO) = 43.0g Molar mass of Ca(CH3COO) = 158.17g/mol

Q: The molar mass and empirical formula of several compounds are listed below. Find the molecular…

A: Here Molar mass of molecule and Empirical  formula  gas.  molecular formula  = (Empirical  formula)n…

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: 2.) Find the number of moles of the indicated species in a.) 4.96 g of B2O3 b.) 333mg of…

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Q: 1. How many grams of C are present in 3.05 grams of carbon tetrabromide ? grams C. 2. How many grams…

A: 1 mole = 6.022×1023 [Avogadro's number] The mass of one mole of atoms of an element is known as…

Q: alculate the molecular weights of the following compounds. Show your complete solution. 1. NH4OH

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Q: Determine the mass in grams of 5.30 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: 1 mole of a substance equal to  6.022×1023 atoms which is Avogadro’s number. Thus, the gram value of…

Q: A different compound contains only sulfur and fluorine.  A sample of the compound contains 4.285 g…

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Q: Washing soda (Na2CO3!xH2O), a compound used to prepare hard water for washing laundry is a hydrate.…

A: Some ionic compound (salt) contains a water molecule in their crystal lattice structure. The water…

Q: Copper(II) fluoride contains 37.42% F by mass. Calculate the mass of fluorine (in g) contained in…

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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: PRE-LAB QUESTIONS In a chemical reaction between iron and sulfur to produce Fe S, it was found that…

A: Empirical formula of a compound represents the proportion of the elements in a compound irrespective…

Q: A compound is composed of elements C, H, and N. A 12.075-mg sample of the unknown compound was…

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Q: True or False? True v The mass of 2 moles of sodium is > 23 g. False v The mass of one mole of…

A: Given,

Q: An unknown compound contains only CC , HH , and OO . Combustion of 8.60 g8.60 g of this compound…

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Q: 3) A different compound contains only sulfur and fluorine.a sample of the cmpound 3.859 g of…

A: 1) Moles of Sulfur (S) needs to be determined in the compound containing 3.859g sulfur and 8.874g of…

Q: A sample of Al2(SO4)3 contains 11.2 g of oxygen, find the number of moles of Al2(SO4)3   0.0740 mol…

A: Given,  Sample of Aluminium sulphate Chemical formula of Aluminium sulphate = Al2(SO4)3 Mass of…

Q: the

A: Molar mass of A2B3 = 2 • ( 15.0gmol-1 ) + 3 • ( 50.0gmol-1 ) = 180gmol-1  Molar mass of C2D = 2 • (…

Q: Which of the following has the highest total number of atoms? Select one: a.2.6 moles of Ca(OH)2…

A: 1 mol  = 6.022 × 1023 atoms

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: III. Find the number of moles of the following: A.56.1 g of Zn(C₂H302)2 B.232 g of Na3PO4

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Q: A 30.21 g sample of a compound that contains only carbon and hydrogen was combusted and yielded…

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Q: Which of the following contains the largest number of atoms? Select one: a. 1.0 mol of water (H2O)…

A: The numbers of atoms present in any substance can be calculated by help of Avogadro's Number. One…

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.