Calculate the mass percentage composition of aluminum in the compound AL(NO3)3. Please report the answer with three significant digits.

Q: What is the mass percentage of each element in the compound Al2 O3? Enter the percent mass of…

A: Al - 53%O - 47%

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: Barium chloride dihydrate has the formula BaCl2  ·  2H2O. Assume there is another hydrate (BaCl2…

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Q: Which of the following conversion factors is correctly set up to determine the number of moles of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: hat is the mass in kilograms of 5.6 x 1027 molecules of carbon tetraiodide

A: The number of moles is the amount of an atom present in the compound containing that atom. It is…

Q: Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate the…

A: The balanced reaction taking place is given as, => N₂(g) + 3 H₂(g) → 2 NH₃(g) Given : Mass of N2…

Q: What is the mass percentage of carbon in C6H12O3? Express your answer as a percentage (i.e., out of…

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Q: A sample of limestone (containing calcium carbonate,CaCO3)weighing 438mg is treated with oxalic acid…

A: Solution- following reaction is given below with problem solution-CaCO3 + H2C2O4 →CaC204 + H2O +…

Q: Calculate the number of moles of hydrogen peroxide molecules, H2O2, present in a sample containing…

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Q: Determine the percentage composition (by mass) of fluoride in tin(II) fluoride.

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Q: Calculate the mass of 0.75 mole of CaCl2. 5H20, in milligram.

A: Given: moles of CaCl2. 5H2O = 0.75 moles molar mass of CaCl2. 5H2O = 201.06 g/mol

Q: How many grams are in 3.02 x 1021 molecules of nitric acid?

A: Niric acid ⇒ HNO3Molar mass of Nitric Acid = 1 x atomic mass of Hydrogen +1 x atomic mass of…

Q: b. Determine the final units of the following expression, which provides the molecular weight of 5.3…

A: Given moles of water = 5.3 mol Molar mass of water = 18.0 g/mol

Q: 2. Calculate the percentage by mass of oxygen in the following compounds a. NO2 b. CH;COOCH3

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

Q: 2. Calculate the percentage by mass of oxygen in the following compounds d. (NH4)2 CO3

A: The mass percentage of an element in a compound is the percent mass of the element in the total mass…

Q: Acrylic acid, used in the manufacture of acrylic plastics, has the composition 50.0%C, 5.6% H, and…

A: Given, percentage composition of C = 50.0 %            percentage composition of H = 5.6 %…

Q: Determine the empirical formula of the compound according to its elemental analysis: 38.13% C by…

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Q: What is the mass of 1.8 x 10^21 molecules of O2?

A: given, number of molecules of O2 = 1.8×1021 molecules the molar mass of O2 = 32 gmol-1 avogadro…

Q: Using the average atomic mass, calculate the mass in grams of each of the following samples.…

A: Given information,     4.50 x 103 mol of germanium, Ge

Q: compound has the mass percent data given below . Determine its empirical formula. 32.43 % carbon by…

A: Empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in…

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: What is the molecular formula of a compound with the empirical formula CH2 and a formula mass of…

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Q: What mass in grams of Cu(IO3)2 can be produced from 0.750 g of CuSO4 x 5H2O?

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Q: compound containing Sodium, Chlorine, and Oxygen is 25.42% Sodium by mass. A 3.25-gram sample gives…

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Q: What mass of iron (III) oxide is produced

A: Number of moles = mass/molar mass  Molar mass of O2 = 31.999 g/mol  Molar mass of iron (iii) oxide =…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of chlorofluorocarbon (CFC). CF2Cl2

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Q: What is the conversion factor for converting 2.77X10^23 particles of CaBr2 to mass

A: The number of particles of CaBr2 is = 2.77×1023 The conversion factor of these particles to mass =?

Q: what mass of aluminum oxide is required to prepare 27g (1 mol) of aluminum?

A: Given data is as follows: The mass of Aluminum = 27 g (1 mol) The mass of aluminum oxide required =…

Q: the mass, in grams, of 112 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: Please express and answer the following ASAP General CHEMISTRY 1. Determine the percentage by mass…

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Q: The ratio of Molar masses of C6H1206 and Water is O 1:10 342:18 O 10:1

A: Molar mass for any compound is the mass of 1 mole of compound. The atomic mass of each element is…

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: Calculate the mass in grams of 1.8 x 10^17 KCl molecules

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Q: Calculate the percentage of potassium, by mass,in K2PtCl6.

A: Mass percent of the solution is defined as the mass of solute divided by the mass of solution…

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

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Q: Calculate the mass of 3.62 x 104 molecules of glucose (C,H1206).

A: Given that :Molecules of glucose (C6H12O6) = 3.62×1024 molecules Mass of glucose =?

Q: The composition of a compound was found to be 66.7% C, 25.9% N and 7.41% H by mass? What is the…

A: Empirical formula represnts number of atoms of various elements present in a molecule in simple…

Q: Determine the empirical formula of the compound according to its elemental analysis:  38.13% C by…

A: Determination of empirical formula The percentage composition of elements present in given compound…

Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 32.08…

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Q: calculate the mass of calcium phosphate (in kilograms)

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Convert 3.45 x 10 ^ 25 molecules of copper (III) sulfide to atoms of sulfur

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: what is the mass percentage composition of the elements in the following compounds? Round to the…

A: Mass percentages are helpful to predict composition of compounds. This compound is always made up of…

Q: Chromium metal is obtained by heating chromium(111) oxide with carbon.Calculate the mass percentage…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: A compound containing selenium and fluorine is decomposed in the laboratory and produces 2.231 g Se…

A: wt. Of Se obtained = 2.231 g wt. Of  F obtained = 3.221 g Empirical Formula = To be determined

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

A: Introduction The percentage by mass of any element that is available in any particular compound can…

Q: Calculate the percentage by mass of nitrogen in PtCl2(NH3)2.

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Q: The number of moles in 36 grams of water is O 2 1 O 20

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Q: Calculate the number of grams of Al in 401 g of Al½O3.

A: Mass of Al2O3=401g Molar mass of Al2O3 is 102g/mol  Mole=mass/molar mass Mole=401÷102= 3.93 mol…

Q: 2.845 x 10E12 potassium ions equals how many moles of potassium ions?

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