How many atoms are there in 75 molecules of acetic acid, CH3CO2H? A compound contains, by mass, 40.0% carbon, 6.71% hydrogen, and 53.3% oxygen. A 0.320 mole sample of this compound weighs 28.8 g. The molecular formula of this compound is: (a) C2H4O2 (b) C3H6O3 (c) C2H4O (d) CH2O (e) C4H7O2

Q: Grignard reagents, which contain a C—Mg bond, have thegeneral formula CH₃—(CH₂)ₓ—MgBr and are…

A: GIVEN: General formula CH₃—(CH₂)ₓ—MgBr To Solve: a)mass percentof Mg if x=0 b) mass percent of Mg if…

Q: An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by mass…

A: For calculation of Molecular formula, first of all we calculate the % of each atom , empirical…

Q: A sample of 0.600 mol of a metal M reacts completely with excess fluorine to form 46.8 g of MF2.(a)…

A: 1 mole of M is present in 1 mole of MF2 and 2 mole of F in 1 mole of MF2. The moles of M is 0.600.

Q: Be sure to answer all parts. Propane (C3Hg) is a minor component of natural gas and is used in…

A: Part a)  given reaction :-   C3H8(g) + O2(g)  --->  CO2(g) + H2O(g)    Part b)   given moles of…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

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Q: When potassium chlorate is subjected to high temperatures, it decomposes into potassium chloride and…

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Q: (a) What is the difference between adding subscript 2 to the end of the formula for CO to give CO2…

A: From given  Subdivision a) is solved with the relation of CO2 and CO when coefficient is added in…

Q: (ii) Magnesium reacts with oxygen to form magnesium oxide. 2Mg + 0, → 2MGO 2.43 g of magnesium was…

A: We have  given the balanced equation of the magnesium reaction with oxygen. We have 2.43 g of…

Q: Read each of the following statements very carefully. Then decide if the statement is CORRECT or…

A: (a) This statement is correct.   Fires are often high-stress situations, and some people will…

Q: What are the molecular masses of the following pharmaceuticals? (a) C33H35FN;O5 (atorvastatin,…

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Q: Bromine forms three compounds with phosphorus. The compounds have the molecular formulae PBR3, PBr5…

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Q: A certain compound contains carbon, hydrogen and chlorine only. Complete combustion of 0.425 g of…

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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.