he Freons are a class of compounds containing carbon, chlorine, and fluorine. While they have many valuable uses, they have been shown to be responsible for depletion of the ozone in the upper atmosphere. In 1991, two replacement compounds for Freons went into production: HFC-134a () and HCFC-124 (). Calculate the molar masses of these two compounds. (Round your answer to two decimal places.) HFC-134a: g/mol HCFC-124: g/mol

Q: E4. If aluminum (Al), with an atomic weight of 27, combines with oxygen (O), with an atomic weight…

A: The balanced reaction of the formation of Al2O3 is as follows: Atomic weight of Al = 27 g/mol…

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

A:

Q: Phellandrene is a component of frankincense resin and has an odor described as “peppery-minty”. It…

A: Given ; hydrogen = 11.84%

Q: Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide…

A: A balanced equation is one in which the number of atoms on both side of the equation are same. A…

Q: A sample of H2O that contains 3.79 ×10^25 water molecules is what amount of water (in moles)? What…

A: The number of moles is the mass of the substance upon the molar mass. The number of moles is also…

Q: phosphorus (P), with an atomic weight of 31, combines with hydrogen (H), with an atomic weight of 1,…

A: We will use stoichiometry of the reaction to get the answer

Q: Explain the Convert between grams of a compound and grams of aconstituent element ?

A: Given statement: "The subscripts in a chemical formula give relationships between moles of the…

Q: A sample of pure alumina hydrate was obtained from a bag of flame retardant. A 5.000 g sample of the…

A: Weight of the hydrated aluminum oxide (Al2O3 . xH2O) = 5.000 g Weight of the anhydrous alumina (when…

Q: 5) 0.7971 g of molecule, X, is found to contain 3.0 x 1022 atoms. Deduce the identity of X. Given N…

A: Given: Mass of X2 = 0.7971 g Atoms of X2 = 3.0×1022 NA = 6.023×1023 mol-1

Q: Stearic acid, CH3 (CH2)16 COOH, has a density of 0.80 9/cm3 and molar mass of 284.5 g/mol. It has a…

A: Number of Mole-Ratio of given mass of substance to the molar mass of substance is called number of…

Q: What gravimetric factor is required to calculate the weight of sulfur trioxide, SO3 (MM = 80.064…

A: We have to tell What gravimetric factor is required to calculate the weight of sulfur trioxide

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

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

Q: Galantamine is a drug given to patients who have Alzheimer's disease. Its chemical formula is…

A:

Q: 1. ONEFORALL (CAXH21N20XPS) is an organophosphate insecticide that is used to protect crops from…

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: A) Chlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically…

A: Given that : 1 molecule of chlorophyll X contains 4 N atoms. % nitrogen by weight = 6.26 %

Q: You are given a sample that contains a mixture of the following two arsenic-containing minerals:…

A: Given: Mass of mixture = 57.38 g Mass of As2O5 formed = 36.03 g Assuming moles of NiAsS in the…

Q: If I gave you 9 moles of pennies (6.02 × 1023) but with the condition that you had to spend them at…

A:

Q: why at the end do you write mass of O2, but then didn't do 32g as the multiplier?

A: To calculate mass of O2 , first moles are calculated and then 32.0 g/mol would be used as multiplier…

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: Caffeine, a stimulant found in coffee, contains 49.5% C, 5.15% H, 28.9% N, and 16.5% O by mass and…

A: First we calculate the emperical formula . Then claculate n with the help of molar mass as given in…

Q: How many grams of carbon dioxide will you get if you burn 400 lb of a hydrocarbon that contains…

A: Answer

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

A:

Q: Carbon tetrachloride, CCI4, was widely used as a refrigerant and in fire extinguishers until it was…

A:

Q: Acetylsalicylic acid, which is C9H8O4, is more commonly known as the active ingredient in Aspirin.…

A: Molar mass- The mass of one mole of a substance in grams is called molar mass. The numerical value…

Q: Ammonium phosphate ((NH,) PO,) is an important ingredient in many fertilizers. It can be made…

A:

Q: How many moles of nitrogen, N, are in 72.0 g of nitrous oxide, N2O? Express your answer with the…

A: moles of element = (given mass ÷ total mass) molecular of N2O is 44

Q: www-awn.aleks.com Significant Figures Counter Sign out Sign out My Courses-Blackboard...…

A: Number of moles of phosphoric acid is calculated as given below,

Q: The compound 2,3−dimercaptopropanol (HSCH2CHSHCH2OH), commonly known as British anti-Lewisite (BAL),…

A: The molecular formula of BAL is : C3H8OS2 Molar mass of BAL = 124g. 1 mole =6.023x1023 atoms  mass%…

Q: Which for every statement best describes the relationship between a mass of CH, and moles For every…

A: Given: CH4 To find: Relationship between mass of CH4 and moles Solution: Number of moles is the…

Q: High fructose corn syrup (HFCS) is a sweetener that was designed in the 1970s, which takes corn…

A: Given, Amount of HFCS used = 67.5 g Percentage of fructose molecules =55.1 % Percentage of glucose…

Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

A:

Q: See the example in Introduction for set-up of calculations. Calculate the number of a) moles of F b)…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

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

A:

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: You are given a sample that contains a mixture of the following two arsenic-containing minerals:…

A: Given : Mass of mixture = 57.38 g Mass of As2O5 formed = 36.03 g Assuming moles of NiAsS in the…

Q: Be sure to answer all parts. Nitroglycerin (C;H5N3O9) is a powerful explosive. Its decomposition may…

A:

Q: Brasses are alloys in which copper is the primary component and zinc is the second most abundant…

A: Given: % of Zinc in naval brass = 39.25 % Mass of sample of naval brass = 72.1 g Molar mass of Zinc…

Q: a. Calculate the molar masses of these two compounds(CH2FCF3 and CHClFCF3). b. What is the percent…

A: a) This question asks us to find the molar mass of two compounds given. b) Percentage composition…

Q: Chlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically…

A: Solution - According to the question - Given - Mass of 5 oxygen = 16 * 5 = 80 Mass of chlorophyll X…

Q: How do I solve?

A: Given,Mass of ethane, (CH3CH3) C2H6 = 21 gMass of oxygen, O2 = 157 gMoles of C2H6 and O2 can be…

Q: The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar…

A:

Q: Imagine that all our balances displayed mass in units of slugs instead of grams. Would we still…

A:

Q: An anhydrous (water removed) salt has a formula mass of 159.265 g/mol. If the hydrated version of…

A: Given, The molar mass of water (H2O) = 18 g/mol. The mass of 5 moles of water (H2O) = 5 x 18 g = 90…

Q: 4. A sample of acetic acid has 4.22x1024 molecules. How many grams of hydrogen are present?

A:

Q: What coefficients would you need to balance the following equation, just put the coefficients in the…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".