A compound found to contain 30.4% nitrogen and 69.6% oxygen. If it has molecular mass of 92.0, what is its molecular formula

Q: A student is running an experiment in which 51.7 grams of BeSO4 is needed, but the only jar of…

A: In the lab the beryllium sulfate present at beryllium sulfate tetrahydrate. The mass of BeSO4 needed…

Q: The hydrogen atoms in 45 g of a sample of ammonium oxalate( NH4)2C2O4 are:Single choice.

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Q: What is the mass of 2.00 × 10 ^ 19 molecules of CCl4?

A: Given the number of molecules of CCl4 are --- 2.00×1019 molecules What is the mass of this given…

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

A: Empirical formula: The empirical formula of a chemical compound is the formula with smallest…

Q: What is the mass in grams of 2.68 x 1024 molecules of NBr5?

A: Given, the number of molecules of NBr5 =2.68×1024 moleculeswe are asked to calculate the mass of…

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: How many hydrogen atoms are in one molecule of vitamin E?

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

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Q: Calculate the empirical formula of each substance from their spectrograms. 1) Co = 0.672 g, As =…

A: Given : Mass of Co = 0.672 g Mass of As = 0.569 g And mass of O = 0.486 g

Q: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

A: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

Q: A compound containing xenon and fluorine what is prepared by shining sunlight on a mixture of Xe…

A: Given: Mass of Xe used = 0.388 g. And mass of compound formed = 0.500 g.

Q: A substance is submitted for combustion analysis. The results show that the compound has the…

A: In this question, only 90% of the composition is given. That is 24+32+28+6 = 90  So the question may…

Q: A compound contains carbon, hydrogen, and sulphur. A combustion analyzer collects 45.0 g of CO2,…

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Q: A compound containing C, H, and O is 30.0% C and 10.1% H by mass. If the compound has a molar mass…

A: Given Element Percentage composition C 30.0 % H 10.1 % O 100- (% C + % H) = 100- (30 +10.1)…

Q: The compound is composed of 40% Carbon, 6.7% Hydrogen, 53.5% Oxygen. The molecular mass is 60.0g/mol…

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Q: Which of the following does NOT describe 44.0 g of propane, C3H8? a) the amount of propane that…

A: The number of moles of propane, C3H8, equivalent to 44.0 g of propane is; nC3H8=mC3H8MMC3H8=44.0…

Q: What is the molecular formula of a substance that contains 2.64 g of C, 0.444 g of H, and 3.52 g of…

A: Given : Molecular mass of compound = 60.05 g/mol Mass of C = 2.64 g Mass of H = 0.444 g Mass of O =…

Q: A compound of C,H,N and O has the following percent composition by mass: 17.8% C, 2.22% H, and 20.7%…

A: Empirical formula represents the simplest whole number ratio of elements that are present in a…

Q: natural product has the molecular formula C25H34O4. What is the mass of 3.31×108 molecules of this…

A: Molecular weight of the compound is  =(12×25)+(34×1)+(16×4) =398 g/mol Where Atomic mass of C ,H And…

Q: Determine the number of C atoms in 0.01 g of Caffeine C8H10N4O2

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Q: A compound has an empirical formula of C 2H 3. If a sample of the compound contains 4.36 grams of…

A: Empirical Formula :- It is the simplest ratio of number of atoms present in a compound. The ratio is…

Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample…

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01…

Q: How many grams are in 1.2 × 1024 atoms of carbon

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

Q: Which of the following is equal to exactly 1 mole of atoms?     6.00 grams of carbon     31.93…

A: According to the mole concept , a mole is a measurement unit of any Substance in which particular…

Q: How many atoms or ions of each element are in 164.5 g of the following substances?   (a) H2       ×…

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Q: Calculate the mass in grams of 1.31×1024 molecules of propylamine. The chemical formula for…

A: Mole : It is the unit of measurement of the amount of substance. It's SI unit is mol. One mole of…

Q: How many particles are there in 1.43 g of a molecular compound with a gram molecular mass of 233

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Q: What is the mass in grams of 5.57 × 10¹⁵ molecules of SO₂?

A: We know that , 1 mole = 6.023x1023molecules/atoms/ions.1 mole = molar mass of molecule .6.023x1023…

Q: A compound contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular mass of the compound is 136…

A: Given :-  % by mass of C = 70.6 % % by mass of H = 5.9 % % by mass of O = 23.5 %  Molecular mass of…

Q: Vitamin C has the formula C6H8O6. Calculate the number of vitamin C molecules present in a 0.250-g…

A: Number of moles is given by the ratio of mass of the substance to that of the molecular mass. 1 mole…

Q: From the given molar mass and empirical formula of several compounds, find the molecular formula of…

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Q: A compound is found to contain 63.65 % nitrogen and 36.35 % oxygen by mass.   NO4   N2O   N2O4…

A: empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a…

Q: compound with empirical formula C2H5O was found in a separate experiment to have a molar mass of…

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Q: How many MOLECULES of water ,H2O , are present in 8.93 grams of this compound? _____ molecules How…

A: a. It is given that the mass of water molecule is 8.93 g.Thus, the number of moles of water can be…

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

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Q: Calculate the percent by mass of each element in the following compounds. a. Methane, CH4 b.…

A: Percent by mass is simply the ratio of atomic mass of element present in compound to total molar…

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: Calculate the mass of gold(III) chloride (Au2Cl6) that contains a million (1.000 x 10^6) chlorine…

A: The atomic mass of Au (gold) is 197 g/mol while the atomic mass of Cl(chlorine) is 35.5 g/mol. Molar…

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

A: Atom % atomic mass relative no of atoms simplest atomic ratio         simplest whole no ratio C…

Q: Calculate the molar mass of a molecule with the molecular formula of C6H5O2. Use 4 significant…

A: The molar mass of a molecule is the sum of the mass of the atoms in the molecule. The molecular…

Q: What is the mass in grams of a molecule of diethyl ether?

A: The structural formula of diethyl ether is (C2H5)2O. The molecular weight of diethyl ether can be…

Q: Part C Hydroxyapatite, Ca₂0 (PO4) 6 (OH)2, the principal component of human bones. Express your…

A: Atomic mass is the mass of  all the atoms         present in molecules .its unit is amu .

Q: . What is the number of moles of nitrogen if the mass of morphine is ninety-two point four grams? 2.…

A: 1. What is the number of moles of nitrogen if the mass of morphine is ninety-two point four grams?…

Q: A 42.0 g sample of compound containing only C and H was analyzed. The results showed that the sample…

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Q: 1. The following compounds are nitrogen fertilizers. Which compound supplies the most nitrogen to…

A: Mass % of nitrogen = Mass of nitrogenTotal mass ×100

Q: How many grams are in 5.87x1021 molecules of sulfur?

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

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: A 30.21 g sample of a compound that contains only carbon and hydrogen was combusted and yielded…

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Q: A compound with a composition of 85.62% C and 14.38% H, and a molecular weight of 56.06 g/mol

A: Composition of carbon and hydrogen are given. Considering total mass of the given compound, the…

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.