An organic compound has a molar mass of 171.1 g/mol and contains 11.10 % hydrogen atoms by mass. How many moles hydrogen atoms are in each molecule of this compound?

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Mass percent expresses the solute concentration in any mixture. The division of weight of dissolved…

Q: Complete the table below for calculating the molar mass of the ionic compound nickel(II) chloride.…

A: Answer:Molar mass of an ionic compound is equal to the sum of all the ions present in the molecule.

Q: How many molecules are in 156 g of aluminum sulfate? 1. 2. What is the mass of 5.36 x 102² molecules…

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Q: A block of pure magnesium metal weighs 76.9 grams. How many moles of magnesium are present in the…

A: Mole= mass of Mg / molar mass of Mg Given - 1) mass of Mg =76.9              2) Molar mass of Mg=…

Q: moles

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Q: A compound consisting of carbon and hydrogen is 92.3% C. If the molar mass of the compound is 156.2…

A: Given percentage of carbon = 92.3 %  Percentage of hydrogen = 100-92.3 = 7.7 %  Molar mass of carbon…

Q: A molecular compound is found to consist of 26.0% nitrogen and 74.0% oxygen. If the molecule…

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Q: An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, C9H8O4. How many…

A: Given:Mass of aspirin = 325 mg = 0.325 g.

Q: Complete the table below for calculating the molar mass of the compound carbon tetrachloride. Molar…

A: The complete table for the molar mass of the compound carbon tetrachloride is given below, 1mole of…

Q: a) Determine molecules of C5H5N in 16.00 g of C5H5N (molar mass = 79.11g/mol). b) Explain how the…

A: a) Given : Mass of C5H5N = 16.00 g And molar mass of C5H5N = 79.11 g/mol.

Q: Cortisone consists of molecules, each of which contains 21 atoms of carbon (plus other atoms). The…

A: The given data: The number of carbon atoms present in cortisone = 21 The mass % of the carbon in…

Q: 2. Calculate the number of molecules of water in a 500.0-mL glass of water. (Note: assume density of…

A: • As per bartleby guidelines, I need to solve only first question in case of multiple questions…

Q: 7. How many particles are present in 0.24 moles of carbon? 5.8 · 1023 particles 2.5 · 1024 particles

A: Mole is the unit of measurement of substances which may be atoms, molecules, ions, or electrons.

Q: For each of the following drugs, determine the mass of compound present for the given moles of each…

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Q: A compound with the empirical formula CH2CH2 has a molar mass of 112112 g/mol. What is the molecular…

A: Solution,  The above question belong to some basic concept of chemistry. Empirical formula is the…

Q: Diamonds are a crystalline form of pure carbon, and their mass is measured in units of carats (1…

A: Given: Mass of diamond = 84.37 carat And 1 carat = 200 mg = 0.200 g…

Q: How many atoms are present in (6.78x10^1) g of an element with the following molar mass.…

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Q: Which sample has the greatest amount of atomic nitrogen? 33.0 g of N2O 3.01 × 1023 molecules of N2…

A: The objective of the question is to determine which of the given samples contains the greatest…

Q: Complete the table of compounds that contain only car- bon and hydrogen. % c % H Formula Molar Mass…

A: Alkanes are saturated compounds containing only carbon and hydrogen atoms. These are also called as…

Q: Determine the molecular formula of the compound with an empirical formula of CH and a molar mass of…

A: Given:- Determine the molecular formula of the compound with an empirical formula of CH and a molar…

Q: How many ATOMS of phosphorus are present in 3.91 moles of phosphorus trichloride? ________ atoms of…

A: A mole is the amount (10) of material containing 6.02214 × 1023 particles. 1 mol = 6.02214 × 1023…

Q: A sample of NH3 has a mass of 84.06 grams.   Calculate the moles of NH3 in the sample.…

A: Given : Mass of NH3 = 84.06 g

Q: For each of the following drugs, determine the mass of compound present for the given moles of each…

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Q: Convert 1.69 × 1024 atoms of carbon to moles of carbon. 1.69 x 1024 atoms = mol C

A: The objective of this question is to convert the given number of atoms of carbon into moles of…

Q: The chemical formula for the C17H14F3N3O₂S. 0.0937 moles? anti-inflammatory drug celebrex is What is…

A: Given : moles = 0.0937 mole  Mass = mole × molar mass

Q: Consider a sample of calcium carbonate, CaCO3 (100.09 g/mol), in the form of a cube measuring 2.88.…

A: The length of the cube of calcium carbonate, CaCO3 =2.88 cm The density of the calcium carbonate,…

Q: Write equations for the reaction of each compound with BF3 a Lewis acid Q.CH3CH2SCH2CH3

A: Given is the Lewis acid that is BF3. That means BF3 is an electron pair acceptor. And in substrate…

Q: How many atoms are in 25.6 g tin? 3.01 x 1023 atoms 3.01 x 1024 atoms 6.02 x 1024 atoms 1.30 x 1023…

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Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Avogadro’s number is defined as   the number of atoms in exactly 12 g of carbon-12. the number of…

A: Which one of the following is correct

Q: An unknown compound with a molar mass of 402.561 g/mol is made of 4.446 g of carbon, 1.741 g of…

A: To find the Molecule formula of given compund , first have to find the moles of carbon , Hydrogen…

Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…

A: Given, mass of C₅₅H₇₂MgN₄O₅. = 1.501 g Molar mass of C₅₅H₇₂MgN₄O₅. = 893.49 g/mol  Number of moles =…

Q: A compound has a molar mass of 38.41 g/mol.  If a sample of this compound is 246.1 g, how many mol…

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Q: How many molecules are there in 12.5 g of NaOH

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

Q: 8. How many grams are in 2.55 x 1024 molecules of KCI?

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Q: Without using a calculator, which has the greater mass: One mole of carbon atoms or one mole of…

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Q: mercury occurs as a sulfide one called cinnabar, Hgs. How many moles of HgS are contained in a…

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Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: Determine the number of atoms in 3.50 g of an unknown substance with a molar mass of 197g/mol. * O…

A: NOTE : Since the number of atoms in each molecule of substance or the formula of substance is not…

Q: how many molecules are in 2.49 x 10^3 g of cuso4

A: The number of molecules in 2.49 x 103 g of cuso4 has to be given,

Q: A sample of ammonia(NH3 17.03 g/mol) has a mass of 56.6 g. How many molecules are in this sample (1…

A: mol designates 6.022 * 10 raise to power 23 molecules.

Q: A compound containing only hydrogen and carbon is known to be 92.26% C by mass.  If the molecular…

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Q: The chemical formula for garnet is MgAl-(SiO.). What is the mass in grams of garnet that are in…

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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.