An 0.7500 mol sample of a covalent compound has a mass of 81.45 g. Determine the mass (g) of one molecule of the compound. Express answer in scientific notation.

Q: How many molecules of amoxicillin (C16H19N305S, molar mass 365.4 g/mol) are contained in a 440-mg ig…

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Q: what is a definition of a mole

A: A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance.…

Q: Please expalin in steps with any fake data you want to help explain to me on how to solve - the…

A: Experimentally oxalate ion can be determined by the titrimetric method with the use of KMnO4 as…

Q: Which does NOT describe a mole?A. a unit used to count particles directlyB. Avogadro’s number of…

A: Mole is an SI unit used to measure the amount of the substances present. One mole of the substance…

Q: A compound has the chemical formula CaX2, where X is an unknown nonmetal. The percent by mass of Ca…

A: Percentage by mass of compound means if total compound is 100 g then that component has mass…

Q: Given the following data: Substance A B Molar mass, g/mol 14 40 Density, g/ml 0.534 1.55 Assume a…

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Q: A 2.41 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.41 g sample of a compound produced 1.36 g CO2 and 0.833 g H2O. Moles of…

Q: Mass --> Moles 1. What is the mass of 3 moles of potassium nitrate? 0 75 moles of aluminum oxide?

A: Since you've posted multiple questions, we'll solve only the first question for you. If you want any…

Q: A stack of 500 sheets of typewriter paper is 1.9 inches thick. The thickness, in inches, of a stack…

A: Number of sheets in a stack = 3.01 × 1023 One mole contains Avogadro’s number of sheets. Therefore,…

Q: A sample of hydrated aluminum sulfate wing 2.954 g was given to a student to be used in the water of…

A: Assuming the formula of hydrated aluminum sulfate is Al2(SO4)3 . yH2O where y = number of water…

Q: Calculate the mass in grams of 5.5000x10^18 molecules of dinitrogen tetroxide. Please write your…

A: Given that: Molecules of Dinitrogen tetraoxide = 5.5000×1018 molecules Mass of Dinitrogen tetraoxide…

Q: If 1.164 g of metallidc cobalt react with chlorine gas to give 3.265 g of cobalt chloride, what is…

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Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

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Q: If a sample of CgHsCO2H is found to contain 3.86 · 1020 H atoms how many C6H5CO2H molecules are…

A: Given: number of H atoms = 3.86×1020 atoms

Q: A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent…

A: A. Given that : The given hydrocarbon is C10H22. We have to calculate the % composition (by mass) of…

Q: when a chemical reaction occurs, the total mass of the substances involved in the reaction does not…

A: According to the law of conservation of mass, matter can neither be created nor destroyed.…

Q: 10. A sample of a pure compound contains 12.23 g of nitrogen and 15.01 g of oxygen. The molar mass…

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Q: Flubberium (Symbol Fb) has a atomic mass of 50 grams, Vibranium (Symbol Vi) has an atomic mass of 25…

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Q: (a) What is the empirical formula for X? Click here to enter or edit your answer (b) What additional…

A: Empirical formula The empirical formula is the molecular formula of the compound that represents the…

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.413 g of C,Hg? x…

A: The molar mass of ethane is,

Q: Calculate the mass percentage of oxygen in the organic molecule whose line structure is shown below.…

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Q: A sample of barium reacts completely with oxygen in a specialized crucible. The reaction that occurs…

A: Answer:- This question is answered by using the simple concept of determination of empirical formula…

Q: Which statement BEST describes why we use moles when measuring quantities of atoms and molecules? O…

A: The mole is the unit of measurement for amount of substance in the International System of Units. It…

Q: An element’s molar mass in grams per mole is numerically equal tothe element’s atomic mass in atomic…

A: An element's molar mass in g/mol  is numerically equal to the element's atomic mass in atomic mass…

Q: the mass, in grams,

A: Given information: molecules of methanol (CH3OH) = 9.01×1024 Mole is the amount of the substance…

Q: A certain compound contains carbon, hydrogen and chlorine only. Complete combustion of 0.425 g of…

A: Given data: Mass of compound = 0.425 g, Mass of water produces = 0.179 g, The compound is 59.19 % by…

Q: Calculate the number of moles in a sample of chromium containing 5.00 * 1020 atoms and the mass of…

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Q: Determine the number of atoms in 31.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Interpretation-  To determine the number of atoms in 31.0 g of calcium ( Ca ) molar mass is already…

Q: in the laboratory, a student weighs out 0.0852 g of cobalt on balance. how many atoms of cobalt are…

A: We have 0.0852 g of Co , we have to calculate the atoms of cobalt in the sample.

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Q: moles 12.00

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Q: Explain what the purpose of a coefficient is in a chemical formula

A: We usually balanced a Chemical Reaction equation to satisfy the law of conservation of mass.…

Q: What is the mass in grams of a single atom of Mo? Enter your answer in scientific notation.

A: 1 mol of any substance contains Avogadro number of particles of that substance. Molybdenum is an…

Q: A student calculated the number of moles of carbon dioxide present in a 100.0 g sample of a gaseous…

A: Mass of sample = 100 g Number of mole of carbon dioxide present in sample = 0.30 mol

Q: You analyze a 42.6582 g sample of a compound comprised of 5.2279 g of carbon, 20.8914 g of oxygen…

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Q: Calculate the mass of 1.00 × 1024 (a septillion) molecules of water. Express the answer numerically…

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Q: Is formula mass different from molecular mass and molar mass? Or they can be used interchangeably in…

A: Given: Three terms are given formula mass, molecular mass and molar mass To find: whether these are…

Q: A sample is marked as containing 47.9 percent calcium carbonate by mass. How many grams of calcium…

A: Given, mass of a sample = 58.9 gThe sample contains 47.9 percent calcium carbonate by mass. The mass…

Q: A hydrated salt is heated to determine the mole ratio of water to salt (n).  A student heated the…

A: Number of calculated hydration likely to be high, or low can be determined by checking the effect on…

Q: Dichloromethane CH2Cl2  (given density=1.33g/mL) volume: 21.0mL Find the Moles, molecules, and…

A: The density of dichloromethane CH2Cl2 is = 1.33 g/mL The volume of dichloromethane CH2Cl2 is =…

Q: An 85.00 g sample of an unknown compound contains 24.26 g molybdenum, 24.33 g sulfur, and the rest…

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Q: Unknow A sample ( given density= 0.795 grams/mL) Volume:24.6mL #of moles in sample:0.31825 moles…

A: • Here, we have to calculate the mass , molar mass and number of molecules of sample. •Given that,…

Q: A student determines the molar mass of a compound to be 145g/mol. If the theoretical value is…

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Q: A 2.33 mole sample of a substance weights about 137 grams. What is the substance

A: 137/2.33 = 58.79  Nearly equal to the mass of NaCl.

Q: The density of lithium (Li) is 0.534 g/mL. Determine the molar volume of lithium.

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Q: How many atoms are present in 0.025 mol of iron? (Enter your answer in scientific notation, i.e.,…

A: Stoichiometry involves the calculation of concentration of solutions in the given conditions of…

Q: Calculate the mass percentage of oxygen in the organic molecule whose line structure is shown below.…

A: The formula of the above mentioned organic molecule is : C18H34O2

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.