The earth's ozone layer is under attack in part by chlorine released when UV radiation breaks apart certain fluorocarbons. Consider three fluorcarbons known as CFC-11 (CCl3F), CFC-12 (CCl2F2) and HCFC-22 (CHF2Cl). Calculate the percentage by weight of chlorine in each fluorocarbon If each kilogram of CFC-11 could be replaced by 1 kg of HCFC-22, by what percentage would the mass of chlorine emissions be reduced?

Q: 6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that: Compound X mass = 6.50 gMolecular mass = 176 g/mol Mass of CO2 = 9.75 gMass of H2O =…

Q: Given a raw material of 3 kg sodium borate, 1.5 kg hydrochloric acid, and its actual yield of 1.5 kg…

A: The reaction considered is, Na2B4O7 + 2 HCl + 5H2O→4H3BO3 + 2 NaCl

Q: 2NaI(aq)+Cl2(g)⟶I2(s)+2NaCl(aq)2NaI(aq)+Cl2(g)⟶I2(s)+2NaCl(aq)   How many grams of sodium iodide,…

A: The number of moles of a compound is calculated by taking the ratio between mass to the molar mass…

Q: What mass of carbon dioxide can be made by reacting 1.56 grams of sodium bicarbonate with 0.687…

A: In order to calculate the mass of carbon dioxide we have to determine the limiting reagent. By…

Q: How many grams of iron are created from 32 grams of Al? 2AI + 3FEO --> 3Fe + Al203 2702.4 B 48556.8…

A: Given the chemical reaction as follows,2Al+3FeO→3Fe+Al2O3amount of Al for reaction =32 gramwe are…

Q: 2) Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen, and…

A: Ammonia reacts with oxygen and methane to form hydrogen cyanide and water. The equation for the…

Q: what is the mass in grams of 2.50 x 10 -3 mole of aluminum sulphate?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: NA+Cl2->NaCl is the balanced reaction for the formation of table salt. Given 20 grams of Na and 10…

A: Data given  Weight of Na = 20 g Weight of Cl2 = 10 g Data required Molecular weight of Na = 23 g…

Q: Ethanol has a molecular formula C2H5OH. A sample of ethanol has a mass of 2.3 grams. The sample was…

A: Since you have posted question with multiple subparts as per guidelines we can answer three . If you…

Q: If a reactant A and reactant B form products C and D, which of the following statements is correct?…

A: Law of conservation of mass: "The mass in an isolated system can neither be created nor be destroyed…

Q: The chemical formula for chlorophyll is C 55 H 22 MgN 4 O 5 a) What is the molar mass of the…

A: Molar mass of a substance is the mass of one mole of that particular substance. The no of moles in a…

Q: Methane gas (CH4) reacts with chlorine gas (Cl2) to produce liquid carbon tetrachloride (CCl4) and…

A: For the given reaction reactants are methane (CH4) and chlorine (Cl2). Therefore, types of atoms are…

Q: What mass of ammonia can be made from 20.0 g of hydrogen? 3H₂+ N₂ → 2NH₃

A:

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given: Mass of compound X = 1.50 g Molecular mass of compound X = 70 g/mol Mass of carbon dioxide =…

Q: 6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: [References] Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the…

A: Ammonia reacts with oxygen and methane to form hydrogen cyanide and water. The equation for the…

Q: Gaseous butane (CH3(CH2)2CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide…

A: 2C4H10 + 13O2 = 8CO2 + 10H2O

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: 6.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given :-6.00gm of a certain compound x, known to be made of carbon, hydrogen and perhaps oxygen and…

Q: Consider the following chemical reaction:            CH4   +    2O2   ------------------>    CO2…

A: The considered reaction is, CH4 + 2 O2→CO2 + 2 H2O

Q: Potassium chlorate (KClO3) decomposes to KCl and O2. Determine the mass of O2 obtained from the…

A: Given, Mass of KClO3 = 12 g  Molar mass of KClO3 = 122.55 gmol-1 Therefore, no. Of moles = given…

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: Calculate the percent composition of oxygen in the following compounds: NaOH Al2(SO4)3 CaCO3 MnO2 In…

A:

Q: The calcium ion is a dietary mineral essential to good nutrition. Calcium is necessary for the…

A:

Q: 4 KO₂ (s) + 2 CO₂(g) → 2 K₂CO₃(s) + 3 O₂(g) What is the mass in grams of oxygen gas that can be…

A: Given  Reaction  4KO2(s)  + 2CO2(g)   →  2K2CO3(s)  + 3O2(g)   Mass of CO2  = 0.355 gram Mass of…

Q: A pharmacist prepares an antiulcer medicine by mixing 286 g Na2CO3 with water, adding 150 g glycine…

A: Given information, 286 g Na2CO3 with water 150 g glycine (C2H5NO2)

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula :- The formula which gives the simplest whole number ratio of atoms of various…

Q: The reaction of methane and water is one way to prepare hydrogen for use as a fuel:   If you begin…

A: Explanation Stoichiometric equation of methane and water     CH4(g) +H2O(g) → CO(g)  +H2(g) So we…

Q: Calculate the mass in grams of aluminum iodide (AlI3) when 23.40 g of aluminum (Al) reacted…

A: Given, 2Al + 3I2 →2AlI3 Mass of Al reacts = 23.40 g Mass of AlI3 = ? Note:  Atomic mass of aluminium…

Q: 4. If 20.0 grams of hydrogen react with oxygen, how many molecules of water can be produced? 2H2 +…

A:

Q: The reaction of calcium hydride with water can be used to prepare hydrogen gas: Hint CaH2(s) +…

A:

Q: C6H1206 + NH3 +1.5 O2 →C;H9NO4+ CO2 + 3H20 (glucose) (glutamic acid) a) If 18 grams of glutamic acid…

A: First of all convert the mass of given compound and then convert it to the mole by using formula :…

Q: Aspirin can be prepared from salicylic acid ( C7H,O3 ), which has a molar mass of 138.12 g/mol, and…

A: Balanced chemical equation is as

Q: Ammonia can also be synthesized by the reaction: 3H2 (g) + N2(g)→2NH3(g) What is the theoretical…

A: To calculate the theoritical yield , 1) Write the balanced chemical equation. 2) Identify the…

Q: 2. A reaction between 2.1 L of Carbon dioxide and 6.7 g of Caleium hydroxide, produces Calcium…

A: Given data, Volume of CO2 = 2.1L Mass of Ca(OH)2 = 6.7g Mass of CaCO3 = 9.11g

Q: data from experiments to find the molecular formula of benzocaine, a local anesthetic, which…

A: In the given question we have to calculate the molecular formula of benzocaine. First of all we have…

Q: Provided you are given a balanced chemical equation   Where do you find the numbers we are to use…

A: For a given balanced chemical equation number of moles of substance is equal to stoichiometric…

Q: Aspirin can be prepared from salicylic acid (C-H,O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: Given the following equation: 2 PbS + 3O2 -----> 2 PbO + 2 SO2 What mass of O2 will react with…

A:

Q: 5.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Using the data given in the question, the number of moles of the compound X can be calculated.

Q: Ethanol has a molecular formula C2H5OH. A sample of ethanol has a mass of 2.3 grams. The sample was…

A: Given: Mass of C2H5OH = 2.3 g. The balanced combustion reaction taking place is given by, =>…

Q: 2NH3(aq) + CO, (aq) → CH,N,O(aq) + H,O(1) In an industrial synthesis of urea, a chemist combines…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Methyl salicylate (oil of wintergreen) is prepared by heating salicylic acid, C7 Hg O3, with…

A:

Q: Aspirin can be prepared from salicylic acid (C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: 2H2(g) + O2(g) -> 2H2O(g) Calculate the mass (in grams) of water vapor produced when 56.0 g of pure…

A: 1) From the balanced chemical equation, deduce the molar relation between hydrogen gas and water…

Q: Writing Balanced Equations You have learned that a chemical equation is a short way of writing a…

A: (1). Nitrogen mono oxide and carbon mono oxide react to form dinitrogen and carbon dioxideThe…

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

A:

Q: 7. Calculate the molar mass of each of the following compounds. a. Fe,O,, iron(III) oxide b. BCl,…

A: Molar mass is the sum of atomic masses of all atoms present in the given Molecule.    Percentage…

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.