How many moles of octane (C8H18) are in 1.5 g of octane? (Octane MW= 114 g/mol) and which of the following describes molecular weight? A) The mass of a single molecule of a given compound  B) The mass of one dozen molecules of a given compound  C) The mass of one mole of molecules of a given compound D) Molecules are so small they don't weigh anything

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Q: A) How many moles of C17H25O6 molecules are in 203 mg of this compound? B) What is the mass of…

A: Mass of C17H25O6 = 0.203 g Molar mass of C17H25O6 = 17x12 + 25x1 + 16x6 = 204 + 25 + 96 = 325 g/mol

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Q: How many moles of octane (C8H18) are in 1.5 g of octane? (Octane MW= 114 g/mol) and which describes…

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

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A: Note: according to our guidelines we are supposed to answer only one question

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Q: 16) How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011…

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Q: How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011…

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Q: The empirical formula and molar mass of several compounds are listed. Find the molecular formula of…

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A: Given : Number of molecules of C2Cl3F3 = 7.0 X 1022

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Q: Selenium dichloride, SeCl2, has a molar mass of 149.86 g/mol.  What is the mass in grams of 0.325…

A: Given, moles of SeCl2 = 0.325 moles molar mass of SeCl2 = 149.86 g/mol mass of SeCl2 = ?

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A: Given, molecules of  dinitrogen tetrafluoride = 3.93 x 1022 molecules we know, => moles of…

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A: 1 mole of a molecular/atomic substance is that amount of the substance which has 6.022×1023…

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Q: 1. How many MOLECULES of water are present in 3.55 moles of this compound? molecules. 2. How many…

A: 1 mol = Avogadro number no.of entities Symbol NA NA = 6.02 × 1023  No. of moles = Given no.of…

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Q: Calculate the number of moles in 315 g of each substance. How many molecules or formula units are…

A: Number of moles formula is. Number of moles = Mass of substance / Mass of one mole.

Q: 1) How many moles of cobalt (Co) atoms are there in 6.00 X 10 (6 billion) Co atoms? 2) How

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A: a) Since molar mass of KBr = 119 g/mol Hence moles of KBr = mass / molar mass = 2.12 / 119 = 0.0178…

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Q: If you had one mole of C​3​O​2​, how many grams of the carbon are present? How many grams of oxygen…

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Q: The empirical formula and molar mass of several compounds listed. Find the molecular formula of each…

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Q: A compound found to contain 30.4% nitrogen and 69.6% oxygen. If it has molecular mass of 92.0, what…

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Q: A compound has an empirical formula of CH3O and a molecular weight of 124 g, what is its molecular…

A: Empirical formula can be defined as the simplest whole number ratio of various atoms or elements…

Q: ow many moles of octane (C8H18) are in 1.5 g of octane? (Octane MW= 114 g/mol

A: Given information:The mass of octane = The molar mass of octane = Use these values to solve for the…

Q: 22) Compare 1 mole of H, 1 mole of O, and 1 mole of F2. Which has the largest number of molecules?…

A: 1 mol of substance contain an Avogadro's number of Molecules . (Avogadro's number = 6.022 × 10²³ )…