A compound containing copper, phosphorus, and oxygen has been analyzed and has been found to have the following composition: copper, 66.75% and phosphorus, 10.84%. (a)  Determine the empirical formula of the compound.  (b) The compound is found to have a molar mass of 857 g/mol.  Determine the molecular formula of the compound.

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: Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution…

A: Given reaction is

Q: One of the hydrates of Na2CO3 is sodium carbonate decahydrate A 55.6 gram sample of Na2CO3  10 H2O…

A: b b

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: The fuel tank of an automobile contains 62.0 kg of gasoline. If the gasoline reacts completely with…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% C,…

A:

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

A:

Q: A sample of a substance (containing only C, H, and N) is burned in oxygen. 1.090x10' g of cO2,…

A: Given that : The mass of CO2= 1.090×101gThe mass of H2O= 7.435×10-1gThe mass of NO= 2.476 g The…

Q: Write the balanced equation, then outline the steps necessary to determine the information requested…

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

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: Explain what the subscript in the formula for a compound indicates. Explain what the coefficient in…

A: Since you have posted multiple short questions, as per our company guidelines we are supposed to…

Q: 892.1 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen.…

A: The yield of water can be calculated as:-

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

A: Mass relationship :- In these problem ,the mass of one of the reactants/products is to be calculated…

Q: Caffeine has the formula C8H10N4O2 . If an average cup of coffee contains approximately 125 mg of…

A: In the international system of units the mole (symbol: mol) is the quantity unit for measurement…

Q: Enter your answer in the provided box. Methanol (CH,OH) burns in air according to the equation…

A:

Q: A compound has an empirical formula of C2H4O and a molar mass of 88.g/mole. What is the molecular…

A:

Q: Potassium bromate is a colorless , crystalline substance whose composition is 23.4 % K , 47.8 % Br ,…

A: An empirical formula gives the smallest whole number ratio of different elements present in the…

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: 3N22SO4 # of molecules: # of elements:

A: The name of Given molecule is sodium sulphate. So the molecular formula is Na2SO4 . Therefore number…

Q: What is the mass percent composition of oxygen in a compound having the empirical formula C20H34O4?

A:

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: If 0.100 g of a compound containing C, H, and O is combusted completed in an excess of oxygen and…

A: Mass of the Carbon can be calculated as

Q: The characteristic odor of pineapple is due to ethyl butyrate an orgamic compound which contains…

A:

Q: The following data was obtained in an experiment to determine the water content in sodium alum, [Na…

A:

Q: a. A piece of iron metal with a mass of 42.5g is burned in the presence of oxygen. The resulting…

A:

Q: The molar mass of one empirical unit of the antidepressant rolicyprine (C7H&NO) is 122.1 g/empirical…

A:

Q: By making use of a sophisticated laboratory apparatus, the nitrogen content of an ammonium nitrate…

A: given data is  obtained nitrogen content from the sample is 34.5%

Q: Calculate the mass in grams of 1.35 mol of     a) titanium white, TiO2 , used as a paint pigment.…

A:

Q: What is the mass, in grams, of 9.43×1024 molecules of methanol (CH3OH)?

A: Calculate for number of moles of CH3OH: 1 mole of any substance contains 6.022×1023 units (namely…

Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

A:

Q: A sample of unknown hydrate, AC·XH2O, has a mass of 1.000 g before heating and a mass of 0.781 g…

A:

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: 454 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen. The…

A:

Q: An industrial detergent was found to be composed of 57.72% C, 8.073% H, 17.09% O, by mass and the…

A: Let's assume, the empirical molecular formula of the given compound is CaHbOcX2c. 'a' is the no of…

Q: A sample of dry solid waste has the following composition : 531 g carbon (C), 133 g hydrogen (H),…

A: The answer is given below

Q: The percentage composition by mass of each element in sodium sulphate, Na2SO4, is what?

A:

Q: A newly discovered metalloprotein, which contains four atoms of Fe per molecule of protein, is found…

A: Given: Percent by mass of Fe in the compound = 0.747 %. And the number of atoms of Fe per molecule =…

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following…

A: Mass of NH3 = 4.90 g * Moles of NH3 = Mass of NH3 / molar mass of NH3 = 4.90 g / (17 g/mol) = 0.288…

Q: The approximate minimum daily dietary requirement of the amino acid leucine, C6H13NO2, is 1.1 g.…

A: Molar mass of the amino acid leucine ( C6H13NO2 ) = 12 x 6 + 1 x 13 + 14 x 1 + 16 x 2 = 72 + 13 + 14…

Q: Mesitylene, a hydrocarbon found in crude oil, has an empirical formula of C3H4 and an experimentally…

A: The formula weight of the empirical formula is: C3H4 = 3×(Atomic mass of C) + 4×(Atomic mass of H) =…

Q: 5.2C23 molecules of hand sanitizer, ethanol (C,I IO ) is how many moles?

A: Given, Molecules of Ethanol = 23 General formula is: 1 mole has 6.023 x 1023 molecules.

Q: Suppose a student starts with 2.4185 g of a sand mixture and separates the components into 1.3012 g…

A: Mass percent of a component in the mixture can be calculated as the ratio of mass of component to…

Q: When 4.517 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 13.68 grams…

A:

Q: When ammonia is mixed with hydrogen chloride (HCl), the white solid ammonium chloride (NH4Cl) is…

A: Given: The mass of ammonia is 10 g. The balanced chemical reaction is, Find the limiting reagent 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…

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.