A binary compound of nickel and oxygen contains 78.06% nickel by mass. Is this a stoichiometric or a nonstoichiometric compound? Explain. 43. T

Q: List three ways compositional data may be given in a prob-lem that involves finding an empirical…

A: An empirical formula is derived from the following compositional data The data having information…

Q: calculate the mass of water that forms when 2.00 grams of hydrogen peroxide decompose. Molecular…

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Q: (a) Does the percent by mass of each element in a compounddepend on the amount of compound? Explain.…

A: a) In a molecule of calcium chloride, there is one calcium atom and two atoms of chlorine. The total…

Q: A 2.45g sample of strontium completley reacts with oxygen to from 2.89g of strontium oxide. What is…

A: Mass of Sr = 2.45 g  Mass of Strontium oxide = 2.89 g  Mass % =?

Q: 1.15g sample of sodium reacts with 0.8g of sulfur to form sodium sulfide. (MM of Na = 23 g/mol and…

A: Interpretation: From the given information, the mole ratio of sodium to sulfur in the sample and the…

Q: Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O. If its molar mass…

A: Given data : Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O. If…

Q: A compound has the mnolecular formula CEH18OE- empirical formula for this compound?

A: Simplest whole number ratio of elements of a compound is Called as empirical formula.  Molecular…

Q: From the following, pick those that are empirical forme

A: Simplest whole number ratio of constituent elements in a compound is called empirical formula…

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

A: Lithium hydroxide is used to absorb CO2 gas. It was also used in APOLLO 13 mission. It absorbs…

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

A: A balanced chemical equation for a given reaction is defined as the chemical equation containing…

Q: Tin (Sn) exists in Earth’s crust as SnO2. Calculate thepercent composition by mass of Sn and O in…

A: The atomic mass of Sn = 118.71g/mol The atomic mass of O = 16g/mol To calculate the percent…

Q: Sulfur dioxide is a major industrial gas used primarily forthe production of sulfuric acid, but also…

A: The process of formation of SO2during the process is ,4FeS2(s) +11O2(g) →2Fe2O3(s) +8 SO2(g)It is…

Q: Mass of empty beaker + watch glass: 154.00g Mass of beaker and hydrate (before heating): 155.58g…

A: Hydrated salts are those which contain water of hydration associated with it. When the water of…

Q: What is the a.) Balanced Chemical Reaction b.) percent (%) composition by mass of each compound…

A: Molecular formula of calcium polysulphide = CaS5 Molecular formula of hydrochloric acid = HCl The %…

Q: Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and…

A:

Q: Define a scope of Convert between moles of a compound and moles of aconstituent element

A: The conversion factor between moles of a compound and moles of constituent element has to be…

Q: Describe the process of Interconverting Masses and Moles?

A: Moles of a substance = given mass of substancemolar mass of substance  Mass of a substance = moles…

Q: How many grams of ferrous sulphate (anhydrous) is equivalent to 1.2g of ferrous sulphate…

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Q: How many molecules of magnesium hydroxide are produced from 0.960 mole of magnesium oxide?

A: One mole of compound contains Avogadro number of its molecules. Avogadro Number = 6.022 × 1023

Q: If you added 231.9 grams of HF to an excess of Mg(OH),, how many moles of HF have you added?

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Q: A white-colored solid contains 75.26% Ag by mass, and the rest is chlorine. Enter the empirical…

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Q: Give a detailed mass-to-mass stoichiometry calculation that can be understood easily.

A: Given that -  Mass of Seignette salt = 1.20 kgs = 1200 g  Mass of cream of tartar = 1.5 kgs = 1500 g…

Q: What is the limiting reactant and what is the maximum mass of xenon produced give 1015 grams of YeF…

A: 2  PF3          +         XeF4     -->      2…

Q: A 0.700 g sample of phosphorous is reacted with excess oxygen to form a product with a mass of 1.604…

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Q: How many moles of Fe203 will be produced from 10.0 moles FeS and 20.0 moles of0?

A: 4 moles of FeS reacts with 7 moles of O2 10moles of FeS reacts with 7 x 10/4 = 17.5 moles  so,…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: One mole of helium contains less molecules than 1 mole of Argon true or false?

A: Explanation as follows

Q: A 0.613 g sample of a covalent compound contains 3.13 × 1021 molecules. What is the molar mass (in…

A: We have 0.613 g sample of a covalent compound contains 3.13 × 1021 molecules . We have to calculate…

Q: 1, determine the mass of blue dye in the solution. ( of the dve is 792 84g/mol).

A:

Q: Does one mole of K and one mole Ti have the same amount or a different amount of atoms? Explain your…

A: Avogadro number = 6.02×1023

Q: The percent by mass of nitrogen for a compound is found to be 46.7% Which of the following could be…

A: Given that the percent by mass of nitrogen in the compound is 46.7%.

Q: An element’s molar mass in grams per mole is numerically equal tothe element’s atomic mass in atomic…

A: An element's molar mass in g/mol  is numerically equal to the element's atomic mass in atomic mass…

Q: 9.4 A sample of sodium sulphate compound is found to contain 29% of sodium, 40,5% of sulphur and 30,…

A:

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

A:

Q: A 161 g sample of MnCl₂·nH₂O yields 112 g of the anhydrous compound after heating. Determine n in…

A: A 161 g sample of MnCl2.nH2O yields 112 g of anhydrous compound after heating. We have to determine…

Q: The percent by mass of nitrogen for a compound is found to be 30.5%. Which of the following could be…

A: Percentage by mass of element in a compound  = Mass of element  × 100 / Mass of compound

Q: The percent by mass of nitrogen for a compound is found to be 46.7%. Which of the following could be…

A:

Q: Tin (Sn) exists in Earth's crust as SnO,. Calculate the percent composition by mass of Sn and O in…

A: Percentage of elements = (molar mass of element/Total molar mass of elements) *100 for eg: in NH3…

Q: A. How many grams of methyl alcohol can be produced from 147 g of CO with excess hydrogen present?

A: Number of moles = mass/molar mass  Molar mass of CO = 28 g/mol  Molar mass of H2 = 2.0 g/mol  Molar…

Q: What is the percent by mass of oxygen in aspirin (C₉H₈O₄)?

A: The molecular weight of aspirin (C9H8O4) is  (12×9+1×8+16×4)=180 gm/mol The oxygen present in…

Q: A carbon compound containing carbon and oxygen has approximate molar mass equal to 290. On analysis…

A:

Q: Nitrogen Hydrogen Sulfur Oxygen 1 ionic compound of (NH4)2503 atoms of N atoms of S atoms of O atoms…

A: (NH4)2SO3 is known as Ammonium Sulfite It consists of atoms of Nitrogen, Hydrogen , Sulfur and…

Q: asolim and water (H,O). What mass of water is produced by the reaction of 7.74 g of octane?

A: The balanced equation for the combustion of octane is,                                    2 C8H18+25…

Q: Describe a "mole" used in chemistry. First, define it, then give examples, then why it's so…

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Q: The percent by mass of nitrogen for a compound is found to be 30.5%, Which of the following could be…

A:

Q: The ______ is a mixture of gases: mostly nitrogen and oxygen, with smaller amounts of argon, carbon…

A: Air is a mixture of gases.

Q: Calculate the number of atoms present 0.5 moles of Sulphur

A: One mole of something is always equal to the: 6.022×1023

Q: What would be the mass m gras of 0.300 moles of the sonuc compound formed when calcium metal reacts…

A: GivenCalcium metal reacts with oxygeMoles of product formed = 0.3 moleMass of product formed = To be…

Q: calculate the molar mass of diphosphorous pentoxide. assume units are g/mol.

A: Molar mass of a substance is sum of atomic masses of all the individual atoms present in it. The…

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.