A chemist must determine the empirical formula of an ionic compound composed only of iron and oxygen.  Chemical analysis reveals that the compound is composed of 1.252 moles of iron and 1.879 moles of oxygen.  What is the empirical formula of this compound?

Q: A sample of the black mineral hematite, an oxide of iron found in many iron ores, contains 34.97 g…

A: The empirical formula for any compound can ve calculated as: 1. Calculate the number of moles of the…

Q: An unknown compound has the following chemical formula: PtCl, where x stands for a whole number.…

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Q: Ascorbic acid is one form of vitamin C and is known to contain only carbon, hydrogen, and oxygen.…

A: Given,  The mass percent of Carbon = 40.91%  Hydrogen = 4.578% and Oxygen = 54.50% The mass of the…

Q: Assume the atomic mass of element X is 22.99 amu. A 22.42−g sample of X combines with 123.73 g of…

A: Mass of X = 22.42 g Mass of Y =123.73 g Atomic mass of element X = 22.99 amu Atomic mass of element…

Q: The empirical formula of propylene is CH2. An experimental determination of the molar mass of…

A: Let the number of carbon atoms be n and the number of hydrogen atoms be 2n in the molecular formula…

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

A: In order to calculate the empirical formula of each compound , we first need to convert the grams of…

Q: he empirical formula for trichloroisocyanuric acid, the active ingredient in many household…

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Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Formula of the compound = XBr3 4.737 g sample of this compound contains 5.329×10−2 mol Br

Q: A binary compound of the elements X and Y is 1/3X by mass.  The molar mass of element X is ¾ the…

A: Empirical Formula  It is the simplest possible ratio of atoms present in a compound. To get the…

Q: will

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Q: compound is 92.2% Carbon and 7.76% Hydrogen. The formula mass of the compound is 78.1 g. Calculate…

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Q: . He can tell from elemental analysis that the polymer is made up of only three elements: carbon,…

A: To solve this we have to consider the mass of polymer = 100.0g  Then  Mass of C = 56.45 g  Mass of H…

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: The molecular formula for dinitrogen tetraoxide is N,O,. Is this the empirical formula for this…

A: The empirical formula can be defined as the simplest whole-number ratio of all the atoms present in…

Q: compound containing Sodium, Chlorine, and Oxygen is 25.42% Sodium by mass. A 3.25-gram sample gives…

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Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

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Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

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

A: Weight of Co = 0.672g Weight of As = 0.569g Weight of oxygen = 0.486g Atomic weight of Co =…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: We have to calculate molar mass of metal and it's identity.

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: The composition of a compound was found to be 66.7% C, 25.9% N and 7.41% H by mass? What is the…

A: Empirical formula represnts number of atoms of various elements present in a molecule in simple…

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

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Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

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Q: 22.00 grams of an organic compound containing only carbon, hydrogen, and oxygen is combusted in an…

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Q: Vitamin B12 , cyanocobalamin, is essential for human nutrition. It is concentrated in animal tissue…

A: The molar mass of cyanocobalamin is calculated using cobalt’s molar mass in step two.

Q: A compound contains 21.20% nitrogen, 6.06% hydrogen, 48.45% oxygen and sulfur. Write the empirical…

A: Given, Percent of nitrogen in the compound = 21.20 % Percent of hydrogen in the compound = 6.06 %…

Q: A compound is 24.7% Calcium, 1.2% hydrogen, 14.8% carbon, and 59.3% oxygen. Write the empirical…

A: Given: Mass percent composition of calcium is 24.7%. Mass percent composition of hydrogen is 1.2%…

Q: The characteristic odor of decaying flesh is due to the presence of various nitrogen-containing…

A: The molar mass of any substance is the mass present in one mole of the substance and the molecular…

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: The elements X and Y form a compound that is 40% X and 60% Y by mass. The atomic mass of X is twice…

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Q: A molecular formula expresses the number of each kind of atom in a molecule. For example, the…

A: Given: Mass of compound = 6.50 g Mass of CO2 = 9.53 g. Mass of H2O = 3.90 g. Molar mass of CO2 = 44…

Q: ) Determine the empirical formula of a compound that contains sulfur and oxygen. It has

A: Simplest whole number ratio of constituent atoms within the molecule is called empirical formula…

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

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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.