Calculate the percentage by mass of magnesium in magnesium sulphate (MGSO4). 24 +32 +16 ×4 = 120 .

Q: convert 0.04mol of copper (I) Sulfate pentahydrate to grams. (249.68g 1 mol) %3!

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Q: How many moles of water H2O, contain 2.0 x 1022 molecules of water?  Express the quantity in moles…

A: Moles = Number of molecules / NA

Q: To determine the amount of platinum in an alloy, a 8.565 g8.565 g sample of an alloy containing…

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Q: over 2 billion pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a…

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Q: What is the percentage by mass of chlorine in the insecticide Lindane, C6H6Cl6?

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Q: . A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample? The…

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Q: There are ______ x 1023 molecules of CO2 in 50.0 g of CO2.

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Q: Calculate the volume of OX 10.5 grams potassium chlor

A: Calculate the volume of oxygen gas produced at STP by complete decomposition of 10.5g of potassium…

Q: MOLAR MASS CALCULATION: Element Symbol No. of Atoms Atomic Mass Mass Contribution X %3D X X %3D…

A: Molecular formula of Compound is Al2(SO4)3  Atomic mass :-  Al = 26.982 u , S = 32.065 u , O =…

Q: What volume of 0.135 M NaOH, in milliliters, contains 31.0 g of NaOH?

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Q: Ammonia, NH3, can be synthesized by this reaction:

A: Given,  Amount of NO is 45.8 g Amount of H2 is 12.4 g Formula Used,

Q: Theoretical Yield = 181.5 Actual = 143.0 g % Yield =

A: The percentage yield of the product is calculated by the following formula:

Q: If 0.276 grams of acetic acid (MM = 60.05 g/mol) are present in your 2.00 mL sample of vinegar, what…

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Q: A large neon sign is to be filled with a mixture of gases containing 8.662 g Ne, 2.44g Xe and 3.11 g…

A: Percentage by mass of an element in a compound can be expressed as the ratio of mass of the element…

Q: From the information below determine the mass of nh3 in 500 grams ammonia.   % solute by mass 28…

A: Solution Mass per cent is also a way of expressing a degree or describing the component throughout a…

Q: Calculate the mass of barium chloride necessary to prepare 165 mL of .1M BaCl2

A: Molarity is defined as total no of moles of Solute dissolve in 1000ml of solution moalrity=…

Q: Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess potassium…

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Q: A. Mass of crucible: 12.214 g B. Mass of crucible and hydrate: 13.250 g C. Mass of crucible and…

A: Given, Salt : CuSO4

Q: 1. Express the number 206,00 in scientific notation. a) 2.06 x 10°, b) 2.006 x10“, c) 20.6 x 10* 2.…

A: 1)The number 206,00 in scientific notation: 206,00= 2.06×104 104=10,000 Option A is the correct…

Q: If you add 1.0 x 10^3 g of ethylene glycol as an antifreeze to a 4.0 kg of water in the radiator of…

A: Mass of ethylene glycol= 1.0×103 g gram molar mass of ethylene glycol =62 g  The calculation of…

Q: The equation for the reaction between sodium hydrogen carbonate and sulfuric acid at room…

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Q: The percent by mass of carbon in CO2 is equal to which of the following expressions? O A 12 44 x 100…

A: Percent by mass of an atom in given molecule is the mass of that element present in 100 grams of…

Q: complete reaction

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Q: Determine the mass of calcium nitrate required to prepare 3500 mL of a 0.800

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Q: What mass of carbon dioxide is produced from the complete combustion of 3.20×10−3 g of methane?…

A: Given, Mass of methane (CH4) gas react = 3.20 × 10−3 g  mass of carbon dioxide (CO2) gas produced =…

Q: how many grams of O2 are needed to produce 1.26 x 1028 molecules of H2O

A: Number of moles can be calculated by dividing number of moles with Avogadro number. No. of molecules…

Q: Using the Identification of Substances by Physical Properties table in the question above, what…

A: Answer is explained below.  To determine the density of any compound (here Cadmium nitrate • 4H2O),…

Q: The percentage composition by mass of benzene is 92.2% carbon and 7.8 % hydrogen. What is the…

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Q: Balance the following equation by algebraic method. C4H10 O2 CO2 H20 + +

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Q: what mass of salicylic acid (in grams, correct to the nearest unit)

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Q: 4. Na H.O 5. Ag AICI 6. NANO, + HCL

A: Chemical reaction : It is process wherein one or more substance called reactant undergoes chemical…

Q: 410.0 mL of a 4.8 mol/L silver nitrate (AgNO 3 ) a reaction flask. Calculate the mass in kilograms…

A: Given Mass of silver nitrate =m g  Molar mass of silver nitrate = 169.87 g/mol Moles = Mass ÷  Molar…

Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Please show the steps involved.

A: Number of moles of CaCl2.9H2O can be calculated from the given mass and molar mass:

Q: 1.204 x 10^24 molecules of NaOH will amount to how many liters of it?

A: Given :- We have to find  1.204 x 10^24 molecules of NaOH will amount to how many liters of it?

Q: C4 H10 O3 + ? O2 → 10- Assume that this reaction is a complete reaction. What can be the coefficient…

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Q: Use the concept of molarity to calculate the molarity of a solution prepared by dissolving 25.00 g…

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Q: If 10.00 ml of 0.0186 M KIO3 are used in the first part of the standardization process, how many…

A: Volume of KIO3 = 10.00 ml = 0.010 L  Molarity of KIO3= 0.0186 M = 0.0186 mol.L-

Q: What volume of 1.772 M BaCl2 is needed to obtain 123 g of BaCl2?

A: BaCl2 = Barium Chloride Molecular weight of BaCl2  = Atomic wt of Ba + Cl x 2…

Q: Determine the mass of 500g of ammonia   % solute by mass 28 density 0.90 g/mL

A: % solute by mass= 28 % This means 28 g of ammonia in 100 g of solution. Density =0.90 g/m

Q: Calculate the mass of silver bromide produced from 23.2 g of magnesium bromide in the following…

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Q: What is the percentage composition by mass of the substance shown below? % C = % S = % H = How many…

A:

Q: Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess potassium…

A: Complete balanced equation for the given question is as follows: HNO3 + KOH (excess)  → KNO3 + H2O…

Q: Balance the following equation by Algebraic method: ____ Na3PO4 + ____ CaCl2  ____ NaCl + ____…

A: The reaction taking place is given as, => Na3PO4 + CaCl2 -------> NaCl + Ca3(PO4)2

Q: What

A: Given, The molecules of N2O = 1.37 x 1017 The mass of nitrogen atom has to be calculated.

Q: One molecule of a compound weighs 2.93 x 10-22 g. The molar mass of this compound is:

A: 1 mole = 6.0224 × 1023 molecules Molar mass = 6.0224 × 1023 × Molecular mass

Q: How many moles of Mg(OH)2 are present after the reaction is complete? Express your answer in moles…

A: Given 7.55 g of Mg(OH)2 reacted with 25mL of 0.195M HNO3  We have to tell the number of moles of…

Q: 2. How many grams of sodium sulfate can be produced when 120 g of sodium hydroxide reacts with…

A: 2)  The balanced chemical equation for the reaction of sodium hydroxide with sulfuric acid is,    2…

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

Q: Determine the mass of sodium nitrate produced when o.85 g of nickel II nitrate reacts with sodium…

A: Given, mass of nickel(II) nitrate = 0.85 g we know, molar mass of nickel(II) nitrate ( Ni(NO3)2 ) =…

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".