A compound is found to contain 26.7 % C and 71.1 % oxygen by weight. What is the empirical formula for this compound? The molecular weight for this compound is 90.0g/mol. What is its molecular formula?

Q: Calculate the following quantities:(a) mass, in grams, of 1.50 * 10-2 mol CdS(b) number of moles of…

A: a) Given: 1.50 x 10-2 mol CdS The mass in grams is calculated as shown below,

Q: According to the following reaction, how many moles of oxygen gas are necessary to form 0.438 moles…

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Q: What is the molar mass of a particular compound if 0.050 mol weighs 5.96 g?

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Q: a hydrocarbon with an empirical formula of CH2 has a molar mass of 84.16 g/mol. what is the…

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Q: Hydrogen gas is considered a clean fuel because it produces only water vapor when it burns. If the…

A: Combustion reaction of hydrogen gas is  H2 + 12 O2 → H2O   Given that , mass of water (H2O) formed =…

Q: If the compound has a formula weight of 176.124 g mol-1, what is the molecular formula of the…

A: We first need to determine the empirical formula of the compound which is possible from the given…

Q: How many atoms are present in the following molar quantities of various elements? a) 1.50 moles Fe…

A: Generally, 1 mole = 6.023 x 1023atoms. a) 1.50 moles Fe = 1.50 x 6.023 x 1023atoms = 9.0345 x…

Q: A sample of sodium carbonate, Na2CO3, weighs  21.0 g.  Calculate the following quantities.   (a)…

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Q: Oxygen was discovered by Joseph Priestley in 1774 when he heated mercury(II) oxide to decompose it…

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Q: For each of the following compounds, determine the moles of compound present for 887.9 grams of the…

A: We have to calculate the mole of given compound

Q: e composition of a given substance is as follows: 3.5 mol C, 2.52 g H, 24.0 g O, 01 x1023 atoms of…

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Q: What is the molecular formula of each of the followingcompounds?(a) empirical formula CH2, molar…

A: Equation for finding molecular formula from the empirical formula,

Q: The experimental molar mass of a compound with empirical formula of N2H4CO is 120.0 g/mol. What is…

A: It is given that the molar mass of the compound which has an empirical formula of N2H4CO is 120…

Q: A sample containing 2.3 moles of H2O has weight equal to g. It has + molecules of water, + atoms of…

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Q: A compound of carbon and hydrogen has the composition of 92.25% carbon and 7.75% hydrogen by mass.…

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Q: Molar Mass: [x] Give your answers in g/mol, but you don't need to include those units in the answer…

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Q: 2.00 mol of CO2  A) 6.022 x 10^22 molecules B)44.01 g C)3 atoms total

A: The molecule given is CO2 with moles of CO2 = 2 Since 1 molecule of CO2 has  1) 1 atom of C  2) 2…

Q: The empirical formula of an unknown compound was determined to be C4H9. Its molar mass is 114.22…

A: Empirical formula of the compound is C4H9. Calculation of empirical formula mass:…

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: 4. Potassium permanganate Туре of Atoms Amount of Total each atom amount Mass of each Formula Total…

A: Given :  To find the type of atoms and total molar mass for the following compounds. 1. KMnO4  2.…

Q: True or False? a molar ratio is used to convert the moles of starting substance to the moles of…

A: In any balanced chemical reaction, the coefficient of species are used to identify the relationship…

Q: Determine molecular formula. An organic compound that only contains C, H, and O was subjected to…

A: Since the compound is made up of only C, H and O. Hence we can assume the empirical formula of…

Q: How many atoms are in each substance? 1. 3.0 moles SO3 2. 6.0 moles CO 3. 4.0 moles CO2 4. 4.0 mol…

A: According to the mole concept, the number of atoms of a substance in one mole is equal to the…

Q: 5.00g of an organic compound was found to contain 2.73%g of carbon , 0.46g of hydrogen and 1.81 g of…

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Q: When 95.7 g of titanium and 64.0 g of oxygen completely react, a single compound forms. Determine…

A: Empirical formula of a compound represents the simple ration of atoms of each element present in the…

Q: empirical formula of C2H3O and a molecular weight of 129 g/mole, what is its molecular formula

A: Empirical formula = C2H3O Empirical formula mass = 2×12 + 3×1 +1×16 = 43 g/mol Molecular weight =…

Q: A compound is determined to be 51.8% chlorine, 1.47% hydrogen, and 46.7% oxygen by weight. The…

A: Welcome to bartleby ! Introduction : We have to calculate the molecular formula .

Q: Consider the reaction: 2CH4(g) + O2(g) – 2C0(g) + 4H2(g) Assuming complete reaction, how many moles…

A: The balanced equation is  2CH4   +   O2   -------- >   2 CO   +   4 H2  from the reaction 1 mole…

Q: 1: The empirical formula of hydrocarbon that contains 18.4% H and 81.6% C by mass is? B) CH3 2: What…

A: Balanced chemical equation are those in which  number of atoms on left hand side and right hand side…

Q: A substance, which is composed of 77.87% C, 10.37% O, and the remainder hydrogen.fout of 100%) 1.…

A: Given : The compound consist of only C, H and O. Mass percent of C = 77.87 % Mass percent of O =…

Q: (Mass of crucible and cover is 43.92 g. The mass of crucible, cover, and magnesium is 44.62g. Mass…

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Q: A 0.025-g sample of a compound composed of boron and hydrogen, with a molecular mass of ~28 amu,…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: 4. are abbreviations used in chemistry for chemical elements, functional groups, and chemical…

A: a mole of a substance weighs its molar mass and contain Avagadro number of particle i.e 6.023*1023…

Q: A sample of a substance (containing only C, H, and N) is burned in oxygen.3.382 g of CO2, 2.307×10-1…

A: To calculate the empirical formula, it is required to calculate the amount of carbon, hydrogen and…

Q: The balanced equation for the Haber Process is shown below. In this reaction, nitrogen and hydrogen…

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Q: In a reaction to produce sulfuric acid, the theoretical yield is 300. g. What is the percent yield…

A: Therotical yield of H2SO4 = 300 g  Actual yield of H2SO4= 111.4 g

Q: A particular chemical reaction that produces benzene has a percent yield of 35.5% If you want to…

A: % yield = {actual yield/ theoretical yield} × 100

Q: When 77 g of N reacts with chlorine, it forms a product that weighs 661 g. What is the empirical…

A: The amount of nitrogen and the amount of final product have been provided. Let the product have the…

Q: For the dehydration experiment, the mass of green crystals before heating was G.H g. After the…

A: Since you have posted multiple questions, we are entitled to answer the first only

Q: A sucrose sample, with a mass of 4.601 g, contains 42.12 % carbon, 6.48 % hydrogen, the remainder…

A: The amount of Carbon, Oxygen and Hydrogen in the compound is determined as given, Mass of…

Q: A chemist set up a synthesis of phosphorus trichloride (PCl3) by mixing 12.0 g of phosphorus (P)…

A: Given data: 12 g Phosphorous react with 35 g of chlorine to give 42.4 g of PCl3 . % yield of…

Q: A compound is found to contain 83.60% C and 16.40% H. If the compound above  is known to have a…

A: For the determination of Molecular formula of the compound Hydrocarbon, % is devide by atomic mass.…

Q: 1- Sodium carbonate with the molecular structure of Na2CO3 with formula weight of the sodium…

A: Answer: In this question with the help of given mass and molar mass we have to calculate the number…

Q: The empirical formula, CH4, has a molar mass of 16.0 g/mol. The molar mass of its molecular formula…

A: Given  Empirical Formula  = CH4 Molar mass of CH4 = 16 gm/mole  Molar mass of molecular formula = 64…

Q: A.) How many Cu atoms are there in a 99.9 gram sample of Cu ? B.) A compound is found to contain…

A: In order to solve this question we will be using basic mole concepts and dealing with stoichiometry.…

Q: An empirical formula of a substance is found to be CH2O. The molar mass of the substance is 90.08…

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Q: 1.65 g H2 is allowed to react with 10.0 g N2, producing 1.79 g NH3. What is the theoretical yield in…

A: The reaction between H2 and N2 is as follows,

Q: A chemist requires 0.471 mol Na2CO3  for a reaction. How many grams does this correspond to?

A: Number of moles of a substance can be calculated by dividing the given mass of the substance by its…

Q: A compound is found to contain 31.42% sulfur, 31.35% oxygen, and 37.23% fluorine by weight. What is…

A: Given that:                    Molecular weight of the compound = 102.2 g/mol…

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.