A 4.626 g sample of a hydrocarbon, upon combustion analysis, yielded 6.484 grams of carbon dioxide. The percent, by mass, of carbon in the hydrocarbon is:

Q: What is the number of formula units in a 4.96 mol sample of CaO? number of formula units: ?

A:

Q: E. A certain compound with a molecular mass of 174 g/mol has been found to consist of 41.4% C, 3.4%…

A:

Q: many MOLECULES of tetraphosphorus decaoxide are present in 4.02 moles of this compound ?…

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Q: Silver chloride, used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in…

A: Mass percent of Ag =mass of Ag×100mass of silver chloride 75.27 = 4.8×100mass of silver chloride…

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: A compound is found to contain 42.88 % carbon and 57.12 % oxygen by mass. What is the empirical…

A: Given: Percent mass of carbon = 42.88 % Percent mass of oxygen = 57.12 % Molar mass of C = 12 g/mol.…

Q: A sample of a pure compund contains 3.04g of nitrogen and 6.94 g of oxygen. The molar mass of this…

A: Since the compound is having only N and O  Hence assuming the compound to be having empirical…

Q: A compound having an approximate molar mass of 150.0–155.0 g has the following percentage…

A: The question is based on the concept of elemental analysis. we have been given percentage of…

Q: Arsenic reacts with oxygen to form a compound AsxOy. If 2.354g of arsenic forms 3.611g of the…

A:

Q: suppose you ve isolated a compound from clover leaves and want to know its empirical formul to help…

A: In the given scenario, we are presented with a compound isolated from clover leaves, containing only…

Q: A multi-nutrient fertilizer contains several different nitrogen containing compounds. The fertilizer…

A: The mass percent of a substance is defined as the ratio of the mass of the substance and the mass of…

Q: A compound is found to contain 83.60% C and 16.40% H. What is its empirical formula ?

A: Given: Compound is found to contain 83.60% C and 16.40% H. Let us consider the mass of compound be…

Q: percent composition

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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.