Consider the molecule tetrahydrocannabinol (?21?30?2), or THC To be legal at the federal level, CBD oil may have no more than 0.3% THC by mass. (That is, a 1-g sample of CBD oil may contain no more than 3 mg of THC.) Assuming the density of CBD oil is 0.95 g/mL, what is the maximum number of moles of THC that may legally be present in 100-mL of CBD oil?

Q: In the US, alcohol proof is equal to twice the percent of alcohol (ethanol) by volume, so for…

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Q: 2. A mixture of Na2SO4 and its hydrate Na,SO4-10H2O has a mass of 1.5099 g. After heating to drive…

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Q: The density of water is 1.00 g/mL at 4 degrees Celsius. How many water molecules are present in…

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Q: Calculate the molar mass of Iron(III) chloride hexahydrate: FeCl3• 6H20. O 162.29 g/mol O 180.29…

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Q: A water solution of sulfuric acid (H2SO4) has a density of 1.864 g/mL and is 73.0% H2SO4 by mass.…

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Q: Calculate the number of water, X,  of crystalization in an unknown sample, having a molar mass of…

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Q: How many moles are there in 4.31 × 10¹2 molecules of sucrose C12H22011? (1 mole = 6.022 x 1023…

A:

Q: Imagine that you are given 0.2500 g of a sample of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O).…

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A: Molecules consumed per mile =  5.96 x 1023 molecules We need to find the mass of fuel.

Q: A beaker contains 100.0 mL of water. To it is added 10.0 mL of dilute nitric acid (HNO3). Calculate…

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Q: If you place 6.46 X 1027 molecules of Ca(OH)2 into this equation, how many moles of Ca(NO3)2 will be…

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Q: Lithium metal has an atomic radius of 152 pm. The molar mass of lithium is 6.94 g/mol and Avogadro`s…

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Q: An empty propane tank weighs 7.22 kg. When it is filled it weighs 25.20 kg. How many propane…

A: To find the number of molecules of propane.

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: How

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Q: 410.0 mL of a 4.8 mol/L silver nitrate (AgNO 3 ) a reaction flask. Calculate the mass in kilograms…

A: Given Mass of silver nitrate =m g  Molar mass of silver nitrate = 169.87 g/mol Moles = Mass ÷  Molar…

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.