Give the empirical formula of each of the following compoundsif a sample contains (a) 0.0130 mol C, 0.0390 molH, and 0.0065 mol O; (b) 11.66 g iron and 5.01 g oxygen;(c) 40.0% C, 6.7% H, and 53.3% O by mass.

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Mass percent expresses the solute concentration in any mixture. The division of weight of dissolved…

Q: When 1.849 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus, 6.249 grams…

A: Combustion reaction involves the reaction of the compound with oxygen. Combustion of hydrocarbon…

Q: 2- Calculate the empirical fomula of the compound composed of 38.67 % C, 16.22 % H, and 45.11 %N by…

A: To calculate the empirical formula we have to calculate the number of mole of each elements in the…

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: (a) Volume of the gas can be calculated as: Since, 1 gal = 3785.41 mL Therefore, From the Density:

Q: The composition of the acid, used in the manufacture of nylon, is 49.3% C, 43.8% O, and 6.9% H (by…

A: Given Percentage of C= 49.3% C, Percentage of O=43.8% O, Percentage of H= 6.9% H (by mass) the…

Q: A rock is 5.0% by mass fayalite (Fe₂SiO₄), 7.0% by massforsterite (Mg₂SiO₄), and the remainder…

A:

Q: 2.Iron ore is impure Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A: Weight of sample = 938kg = 938000g Pure iron in sample = 523kg Assuming that impurities donot…

Q: a. Quinoline, a starting compound for drugs, consists of C, H, and N. Combustion of such compounds…

A: Given: Compound contains only C, H and N. Mass of compound combusted = 9.71 mg = 0.00971 g.…

Q: What mass, in grams, of sodium carbonate is required for complete reaction wit 8.35g of nitric acid…

A: In Balanced chemical equation number of atoms of each species are equal on both reactant and…

Q: how many moles of Fe3O4 are required to supply enough iron to prepare .260 mol Fe2O3?

A: 1 mole of Fe2O3 contains 2 moles of Fe. Hence, 0.260 moles of Fe2O3 will contain 0.260 * 2 = 0.520…

Q: Determine the empirical formula of (a) the rodenticide (rat killer) warfarin, which consists of…

A: The given data contains, C = 74.01% H=5.23% O=20.76%

Q: A molecule is found to contain 47.35% by mass C, 10.60% by mass H, and 42.05% by mass O. What is the…

A: The solution to the empirical formula of the compound is attached below.

Q: Given the reaction, how many moles of ZZ will be produced from 1.60 mol A, 1.60 mol A, assuming…

A: For the given reaction :

Q: If 1.00mol/l of nax contains 4.2% solute by mass, what is the atomic mass of x?

A: Given solution contains 1.00 mol of NaX in 1 L. Again (w/v)% of NaX is 4.2%. Here we have to…

Q: The study of sulfur-nitrogen compounds is an active area of chemical research, made more so by the…

A: First determine the moles of sulfur. Given mass of sulfur is 2.288g. Then determine the moles of…

Q: perchlorate is a colorless , crystalline substance whose composition is 28.2 % K, 25.6 % Cl, and…

A: Given, Element %  of  K = 28.2 % = 28.2 g Element %  of  Cl = 25.6 % = 25.6 g Element %  of  O =…

Q: What is the molar mass, in g/mol, of the hydrate compound with the proposed formula of CrCl3⋅3H2O

A: Since you have posted multiple questions, and these are not related to each other therefore as per…

Q: . A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated…

A: Since we answer only 3 sub-parts, we'll answer the first three. Please resubmit the question by…

Q: What is the mass percentage of C in morphine, C1,H19NO,?

A: The molar mass of morphine is 285.34 g⋅mol−1.

Q: millan Lea Table salt, NaCI(s), and sugar, C,H„0,(s), are accidentally mixed. A 5.00 g sample is…

A: Sample taken = 5.00 g  CO2 produced = 1.60 g

Q: The chemical formula of lysine (a building block of proteins) is C6H14N2O2. Given that the formula…

A: Given, Formula mass of lysine, C6H14N2O2 = 146.19 amu = 146.19 g/mol

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: The solution is given below -

Q: a. Quinoline, a starting compound for drugs, consists of C, H, and N. Combustion of such compounds…

A: Given datas ;  Mass of Quinoline = 9.71 mg  Mass of H2O = 4.74 mg  Mass of N2 = 1.05 mg  Number of…

Q: Acetaminophen is the generic name of the pain reliever in Tylenol and some other headache remedies.…

A: Mass% is equal to the ratio of mass of the atom to the total mass of molecule multiplied by 100.…

Q: 4.2 A compound that can be sampled or "smelled by sniffing your armpits or someone's unwashed feet,…

A: The percent of carbon, Hydrogen, Oxygen is 55.80 %, 7.03 %, 37.17 % respectively

Q: |Solid silver oxide, Ag2O(s), decomposes at tempera- | tures in excess of 300 °C, yielding metallic…

A: The balanced decomposition reaction of silver oxide (Ag2O) at temperature in excess of 3000C can be…

Q: A compound has a molar mass of 28.06 g. What is its chemical formula if carbon and hydrogen are…

A: In this question, chemical formula of the compound is to be determined which consists of carbon and…

Q: Calculate the following quantities:  a. mass, in grams, of 0.105 mol sucrose (C₁₂H₂₂O₁₁) b. moles of…

A: a. mass, in grams, of 0.105 mol sucrose (C₁₂H₂₂O₁₁) Given;

Q: When 1.5173 g of an organic iron compound containingFe, C, H, and O was burned in O₂, 2.838 g of CO₂…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: 5.) The composition of a compound containing Cd, P, and O, is 63.94% Cd and 11.80% P (by mass). What…

A:

Q: 5.) The composition of a compound containing Cd, P, and O, is 63.94% Cd and 11.80% P (by mass) What…

A: Given: Mass % of Cd = 63.94 % Mass % of P = 11.80%

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: Molar mass of a compound is the sum total of molar masses of the elements present in that particular…

Q: For the combustion reaction of C2H4 (g), what number of moles of CO2 can be produced by the reaction…

A: Combustion of any hydrocarbon produces water and carbon dioxide. Hence the combustion reaction of…

Q: 5. For many years the recovery of gold, that is, the separation of gold from other materials,…

A: Given, 4Au+8KCN+O2+H2O→4KAu(CN)2+4KOH Gold extracted = 29.0 g moles of gold : =mass of goldmolar…

Q: 2. How many molecules of Carbon dioxide are there in 345g of CO2?

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

Q: (a) Combustion analysis of toluene, a common organicsolvent, gives 5.86 mg of CO2 and 1.37 mg of…

A: Mass percent is given by the ratio of mass of the substance to that of the total mass.

Q: A)determine the empirical formula of warfarin, which consists of 74.01% C, 5.23% H, and 20.76% O, by…

A: (A)The empirical formula of warfarin is

Q: 1. What is the mass percentage composition of capsaicin? 2. What is the percentage composition of…

A: (1) Capsaicin has Following molecular formula -  C18H27NO3  And it's Molecular mass is -  =>…

Q: A single tablet of regular strength Tylenol contains 325 mg of the active ingredient, acetaminophen…

A: The molecular formula of acetaminophen has been provided as C8H9NO2.

Q: The chemical formula of blue crystalline substance of hydrated penta-aqua copper II sulphate is…

A: Molecular formula: CuSO4.5H2O Chemical formula: CuH10O9S Molar mass of CuSO4.5H2O = 64 + 10 x 1 + 9…

Q: Q1) A sample of limestone (containing calcium carbonate, CaCo,) weighing 438 mg is treated with…

A: Molar mass of CaCO3 = 40 + 12 + 3(16) = 100 g Molar mass of CaC2O4 = 40 + 2(12) + 4(16) = 128 g…

Q: etirmine the empirical formula of the compound with the follwoing composition by mass 55.3% k, 14.6%…

A: The empirical formula gives the simplest ratio of atoms present in the compound.

Q: what is the mass percentage composition of the elements in the following compounds? Round to the…

A: mass percentage composition can be calculated by  mass % = mass of atom in compound X 100 / mass of…

Q: If the molar mass of the hydrocarbon C3H8 was determined to be 440.97 g/mol, what is the molecular…

A:

Q: How many moles of sucrose (table sugar, C 12H 22O 11, molar mass 342.3 g/mol) are contained in a…

A: Number of moles of sucrose is equal to the mass of sucrose divided by its molar mass. Write the…

Q: One of the hydrates of MgI2 is magnesium iodide octahydrate .A 89.9 gram sample of MgI2  8 H2O was…

A: Hydrated salts have water within their crystals when the crystals are formed from water.Anhydrous…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: The decomposition reaction of CaCO3 can be written as, => CaCO3 (s) ---------> CaO (s) + CO2…

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.