a chemist determines that 1.26 g of iron reacts with 0.54 g of oxygen to form rust. What is the percent composition of each element

Q: A 58.5 g sample of an unknown compound that contains only carbon, hydrogen and oxygen was analyzed…

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Q: The active ingredient in aspirin is acetylsalicylic acid, which has the chemical formula . An…

A: The chemical formula of acetylsalicylic acid is C9H8O4. Given : Mass of acetylsalicylic acid in each…

Q: a chemist determines that 1.26gof iron reacts with 0.54gof oxygen to form rust. whatis the percent…

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Q: Use Nernst Equation

A: Given: The concentration of Zn2+ = 0.05 M. The standard reduction potential of the cell ,(E0) = 1.1…

Q: The cycle of copper reactions starts with solid copper metal and ends with solid copper metal.…

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Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.402…

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Q: A 52 kg woman has 8.6x10-3 mol of hemoglobin (molar mass = 65323 g/mol) in her blood. How many…

A: Given, moles of hemoglobin = 8.6 x 10-3 mol We know, => molecules of hemoglobin = moles of…

Q: Percentage Composition: Aluminum Phosphate

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Q: There are 5.00 mol KBr in a beaker. How many molecules of KBr are in the beaker?

A: Number of molecules can be determined using mole concept.

Q: In an industrial process, nitrogen is reacted with hydrogen to produce ammonia. The percent yield of…

A: Given, Actual mass of ammonia, NH3 produced = 4.8 kg = 4800 g    (1 kg = 1000 g) Percent yield = 28…

Q: 13 Analysis of 1.60 grams of an oxide of iron formed 1.12 grams of iron. a What mass of oxygen was…

A: The objective of the question is to determine-a. The mass of oxygen formed during the analysis.b.…

Q: An unknown compound has the following chemical formula: Fe(NO,), where x stands for a whole number.…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: Calculate the number of atoms in 12.45 grams of iron. 1.342 x 1023atoms 1.342 x 1022toms 0.223 atoms…

A: Given information, Given mass of iron = 12.45 g Molar mass of iron = 55.845 g/mol Calculate : Number…

Q: If 4.41 g of nitrogen react with 2.00 g of hydrogen to produce ammonia, what is the limiting…

A: The reaction taking place is: 3H2  +  N2  →  2NH3 In general, 3 moles of H2 reacts with 1 mole of N2…

Q: The reaction of 7.71 x 103 g of titanium (IV) chloride gas with 1.45 x 103 g of oxygen gas produces…

A: Titanium chloride reacts with oxygen to give titanium oxide and two moles of chlorine gas.

Q: If 0.5734 g magnesium filings are involved in the Grignard reaction, how many millimoles of…

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Q: how many molecules are in 120.6 g of carbon?

A: Given data, Mass of Carbon= 120.6 g Formula, Moles of Carbon= mass of Carbon/Molar mass of Carbon…

Q: how many grams of chlorine are created when 56 grams of sodium chloride decomposes?

A: Decomposition reaction of sodium chloride produces sodium metal and Chlorine gas.

Q: what is the percent by mass of sugar in a mixture that contains 157 g of salt, 1.215 kg of flour and…

A: Given, mass of salt = 157 g Mass of flour= 1.215 Kg 1 Kg = 1000 g 1.215 Kg = 1.215 x 103 g Mass of…

Q: A reaction between nitrogen and hydrogen forms ammonia (NH3). If 15.62 grams of nitrogen is reacted…

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Q: A compound has the chemical formula SrX2, where X is an unknown nonmetal. The percent by mass of Sr…

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Q: Aluminum reacts with42 g of iron(II) sulfate.How many grams of iron are formed? Aluminum sulfate is…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: A 4.90g sample of barium bromide is reacted with 11.7g of silver (i) nitrate to form silver (i)…

A: The balanced chemical equation for the given reaction is shown below.

Q: Convert 1.69 × 1024 atoms of carbon to moles of carbon. 1.69 x 1024 atoms = mol C

A: The objective of this question is to convert the given number of atoms of carbon into moles of…

Q: Aluminum chloride is formed by reacting 15.99 g aluminum with 63.32 g chlorine. What is the percent…

A: Mass percentage is defined as the quantity of solute present in 100 grams of solution.

Q: 0.02878 moles of an unknown compound made carbon and hydrogen reacts with 9.207 g of oxygen in a…

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Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: If 4.41g of nitrogen reacts with 2.00g of hydrogen to produce ammonia, what is the limiting reactant…

A: Given: The weight of nitrogen is 4.41 g. The weight of hydrogen is 2.00 g.

Q: Olivia is attempting to synthesize some potassium ferrioxalate and calculates that her theoretical…

A: percent yield is defined as  % yield = experimental yield X 100 / theoretical yield since…

Q: If you are given 3.38 moles of CaCl2, what is the mass of the compound in grams

A: Mass of compound is equal to the product of mole and it's molar mass

Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.132…

A:

Q: The cycle of copper reactions starts with solid copper metal and ends with solid copper metal.…

A: This is a cycle of reactions, because you start and end with the same substance, copper metal.

Q: Given 92.45 g of CO2, what is the mass of the carbon?

A: Given 92.45 g of CO2, what is the mass of the carbon ?

Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.242…

A: The reactions occurring in the system are written below.

Q: For an experiment, a student used 17.50 g sodium chloride.  How many moles of sodium chloride did…

A: Number of moles of any substance can be calculated by using the formula :               number of…

Q: If 60.2 grams of Hg combines completely with 24 grams of Br to form a compound, what is the %…

A: Given: Mass of mercury (Hg)=60.2 g Mass of Bromine (Br)=24 g The total mass of compound =(60.2 +24)…

Q: A chemist determines by measurements that 0.0400 moles of chlorine gas participate in a chemical…

A: To calculate the mass of chlorine gas that participates in the reaction, we need to use the molar…

Q: Silicon, which occurs in nature as SiO2, is the material from which most computer chips are made. If…

A: The balanced chemical reaction is as follows: SiO2 + 2 C = Si + 2 CO 1 mole of SiO2 reacts with 2…

Q: When iron rusts, solid iron reacts with gaseous oxygen to form solid iron (III) oxide. a) Write the…

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Q: The atomic mass of Cl is 35.45 amu, and the atomic mass ofAl is 26.98 amu. What are the masses in…

A: Given, atomic mass of Cl is 35.45 amu  atomic mass ofAl is 26.98 amu

Q: The cycle of copper reactions starts with solid copper metal and ends with solid copper metal.…

A: Given  Obtained Cu           = 0.450 gram  Total amount of Cu = 0.507 gram  Recover % Copper = ?

Q: the analysis of a compound shows that it contains 5.4 mol c, 7.2 mol h, and 1.8 mol n. what is the…

A: Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

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.