An oxide of chromium is made up of 5.20 g chromium and 5.60 g oxygen What is the empirical formula of the oxide?

Q: What is the empirical formula of a compound thatcontains 10.52 g Ni, 4.38 g C, and 5.10 g N?

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Q: Octanitrocubane is a high energy explosive material composed of the elements C, N, and O. Combustion…

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Q: An antifreeze and coolant widely used in automobile engines is 38.7% carbon, 9.7% hydrogen, and…

A: Given: antifreeze and coolant widely used in automobile engines is: 38.7% carbon 9.7% hydrogen…

Q: A sample of urea contains 1.233 g N, 0.177 g H, 0.528 g C, and 0.704 g O. What is the empirical…

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Q: An organic compound used as a food additive in beverages and baking powders, is composed of 41.39%…

A: Given  % C  = 41.39 % H = 3.47  % O = 100 -( 41.39 + 3.47 ) %         = 55.14 %  Empirical Formula =…

Q: What is the empirical formula of a compound composed of: 9.93% carbon, 58.6% chlorine, and 31.4%…

A: Given: Composition of elements Carbon: 9.93% Chlorine: 58.6% Fluorine: 31.4%

Q: Combustion of an unknown compound containing only carbon and hydrogen produces 54.9 g of CO₂ and…

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

Q: 2. A 13.07g sample of an unknown compound is composed of 9.48 g of barium, 1.66g of carbon and 1.93…

A: Empirical formula of a compound is denoted by the proportion of numbers of atoms present in the…

Q: A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields…

A: The number of moles of the compound can be calculated by dividing the given mass of the compound by…

Q: A chemist must determine the empirical formula of an ionic compound composed only of iron and…

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Q: Ascorbic acid (vitamin C) contains 40.92% C, 4.58% H, and 54.50% O by mass. What is the empirical…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A compound used to generate Oxygen gas in the laboratory has mass composition of 31.91% K, 28.93%…

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Q: 5.00 g of a manganese oxide contains 3.16 g of manganese. What is the empirical formula of the…

A: Empirical formula: The formula which gives the simplest whole number ratio of the atoms of various…

Q: The empirical formula of an unknown compound is CH and the molar mass of compound is 78.11 g/mol.…

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Q: Quinine is used to treat malaria and has a molar mass of 325g/mol. If the empirical formula is…

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Q: Consider a sample of carbon tetrafluoride that contains 1.59 × 1024 atoms of fluorine. Using the…

A: Recall the data from the question, Atoms of fluorine in carbon tetrafluoride=1.59*1024 atoms moles…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: The number of moles of oxygen and silver is calculated as,

Q: A student used 1.50 g of manganese to react with excess fluorine to form manganese fluoride. If 4.09…

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Q: the mineral hausmannite is a compound of Mn and O. If hausmannite is 72% Mn by mass, what is the…

A: Given, 72% Mn by mass

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.