A certain metal hydroxide, M(OH)2, contains 32.8%% oxygen by mass. What is the identity of the metal M?

Q: A fertilizer is advertised as containing 14.0% nitrogen(by mass). How much nitrogen is there in…

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Q: 2- Calculate the empirical fomula of the compound composed of 38.67 % C, 16.22 % H, and 45.11 %N by…

A: To calculate the empirical formula we have to calculate the number of mole of each elements in the…

Q: 1. A platinum (II) compound , which is used to treat tumors, contains 65.0% Pt., 23.6% Cl, 9.35% N,…

A: As you have asked multiple question we will solve the first one for you .If you want answer to a…

Q: How many moles of hydrogen are in 3.06 x 10-3 g of glycine, C2H5NO2 ?

A: Moles of glycrine = given mass of glycrineMolar mass of glycrineMolar mass of glycrine (C2H5NO2) is…

Q: A compound is 52.14% C, 13.13% H, and 34.73% O by mass. What is the empirical formula of the…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A compound is composed of 73.1 % G e and 26.9 % O. What is the empirical formula?

A: Given : Mass percent of Ge = 73.1 %  And mass percent of O = 26.9 % Since the compound contains only…

Q: The compound chloral hydrate, known in detective stories as knockout drops, is composed of 14.52% C,…

A: The empirical formula of a compound gives the proportions of the elements present in the compound.…

Q: A compound is 53.31% C, 11.18% H, and 35.51% O by mass. What is its empirical formula?

A: Given,Mass percentage of C = 53.31 %Mass percentage of H = 11.18 %Mass percentage of O = 35.51 %This…

Q: Determine the empirical formula of (a) the rodenticide (rat killer) warfarin, which consists of…

A: The given data contains, C = 74.01% H=5.23% O=20.76%

Q: How many molecules are in 28.0 g of isopropyl alcohol C3H8O?

A: The formula of isopropyl alcohol is C3H8O Hence molar mass of C3H8O = Atomic mass of C X 3 + Atomic…

Q: What is the empirical formula of a compound that contains 63.25% Xe and 36.66%F by mass?

A: Empirical formula :-  The simplest formula which shows only relative number of different atoms…

Q: A compound's molar mass is 400 g/mol. Its percentage composition is 75.00% carbon, 5.05% hydrogen,…

A: Percentage composition can be used to find the moles of each atom present in the formula.

Q: number of grams

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Q: A compound is 54.53% C,54.53% C, 9.15% H,9.15% H, and 36.32% O36.32% O by mass. What is its…

A: The formula of a compound in which elements are represented in simple ratio is called empirical…

Q: Fe,03 + HCI → FeCl, + H2O 5 g 5 g ?g 5. How many grams of the product is produced?

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Q: Opal is a hydrated form of silica. If a laboratory analysis of a sample of opal reveals it to…

A: Hydrated form of silica means some of water molecules are present in form of H2O in silica compound.

Q: How many moles of Al are necessary to form 83.0 g of AIBR, from this reaction: 2 Al(s) + 3 Br,(1) →…

A: For the reaction: 2Al     +   3Br2 →  2AlBr3 2 mol        3 mol         2 mol Given : Mass of AlBr3…

Q: What is the empirical formula of a compound composed of 72.36% Fe and 27.64% O by mass?

A: Empirical Formula :-  Empirical formula is the simplest ratio of number of atoms present in a…

Q: 1. An organic compound was found to contain 54.5% C, 9.2% H, and 36.3% O. a. What is the empirical…

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Q: _____1. What is the % C in aspirin by mass in aspirin? _____2. What is the % O in aspirin by mass…

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Q: Copper(II) sulphate, CuSO4, is a white crystalline compound that gives an aqueous solution from…

A: The mass of copper(II) sulphate pentahydrate, CuSO4.5H2O is = 1.547 g  The mass of anhydrous of…

Q: A 5.17 g sample of a compound with the formula CxHyOz is combusted and yields 13.0 g CO2 and 2.29 g…

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Q: A mass of 2.052 g of a metal carbonate, MCO3, is heated to give the metal oxide and 0.4576 g CO2.…

A: The reaction taking place is  MCO3 (s)  -----> MO(s) + CO2 (g) From the above balanced reaction,…

Q: Calculate the molar mass (g/mol) of the compound. NaNO2

A: Calculate molar mass of NaNO2 ?

Q: The active ingredient in a common treatment for upset stomach is sodium bicarbonate, NaHCO3.…

A: Calculate the percent, by mass, of carbon in sodium bicarbonate.

Q: 1252. An unknown organic compound weighing 1980 mg is fully combusted at high pressure, yielding of…

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Q: What is the mass, in grams, of 9.32×1024 molecules9.32×1024 molecules of methanol (CH3OH)?

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Q: CH4 + 20, → CO, + 2H,0 You have 30 g CH, that you burn in oxygen. How many grams of water (H,0) can…

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.…

Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?

A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…

Q: What is the empirical formula of a compound containing 40.0% C, 6.71% H, and 53.28% O?

A: In chemistry, the empiric formula of a chemical compound is the shortest positive integer ratio of…

Q: 5.) The composition of a compound containing Cd, P, and O, is 63.94% Cd and 11.80% P (by mass). What…

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Q: How many moles of aspirin, C9H8O4, are in a bottle containing 450 g by weight? (Note: The…

A: Given,  Weight of aspirin is 450 g Atomic weight of C is 12 g/mol. Atomic weight of H is 1 g/mol.…

Q: One of the hydrates of MnSO4 is manganese(II) sulfate dihydrate . A 69.7 gram sample of MnSO4  2…

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Q: Toluene has a density of  867 kg/m³ and its molar mass is 92.14 g/mol. If 100 mL of Toluene is…

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Q: Question attached

A: Mass percentage It is the ratio of mass of an atom to the total mass of the compond. mass…

Q: 4. What is the mass percent composition? Why is it useful?

A: Mass percent of each type of element in a compound is called the mass percent composition of the…

Q: A compound whose empirical formula is XF3 consists of 65%F by mass. What is the atomic mass of X?

A: The empirical formula for a given chemical compound is used to describe the simplest whole number…

Q: Calculate the % composition of CuSO4.5H20 (Atomic masses:Cu = 63.55 amu; S = 32.06 amu; O = 16.00…

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Q: 1.Ibuprofen is a compound used in painkillers. When a 2.174 g sample is burned in an excess of…

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Q: What is the empirical formula of a compound composed of 3.25% hydrogen (H), 19.36% carbon (C), and…

A: Given, 3.25% hydrogen (H) by mass, 19.36% carbon (C) by mass, and 77.39% oxygen (O) by mass

Q: empirical formula of a compound that contains 27.0% S, 13.4% O, and 59.6% Cl by mass?

A: If percentage are given then we are taking total mass is 100 grams. So, the mass of each element is…

Q: A mixture consisting of 11.5 g of calcium fluoride, CaF2, and 10.1 g of sulfuric acid, H2SO4, is…

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Q: Why should a pure compound have a definite composition by weight? how is it possible for two samples…

A: We need to explain why a pure compound is expected to have a definite composition.  Definite…

Q: odine is prepared both in the laboratory and commercially by adding Cl2(g)Cl2(g) to an aqueous…

A: Given, Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous…

Q: Which substance contains more carbon by mass, 6.01 g of glucose, C6H12O6 or 5.85 g of ethanol,…

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Q: Q6 - Calculate the formula weight of the following molecules to three significant figures Q7…

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Q: What is the empirical formula of a compound that contains 29% Na, 41% S, and 30% O by mass?

A: Emperical formula is the simplest formula of the molecule in which atoms are present in simple…

Q: When 7.045 g of one of the hydrates of sodium sulfate (Na2SO4) was heated to drive off its water of…

A: Given;

Q: 1.) What is the percent composition of the following compounds? a.) Calcium sulfate CaSO, b.) Sulfur…

A: Considering the compounds given as one mole. The molar masses of the given compounds are: CaSO4 =…

Q: How many particles of glucose are present in 0.53 moles of C,H,2O6? (what kind of particles are…

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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.