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

Q: How many C4H10 molecules are contained in 9.213 g of this compound? How many hydrogen atoms?

A: Formula for calculation of number of molecules is:

Q: A model of the butanal molecule is shown in the window below. ball & stick + labels ited a. How many…

A: From the model, Butanal=> CH3>CH2CH2CHOMolecular formula of butanal is C4H8O. Mole is the SI…

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

Q: Calculate the mass (in g) of each of the following. 1) 6.24×1020 SO3 molecules 2) 2.9×1022 H2O…

A: Given, 1) 6.24×1020 SO3 molecules 2) 2.9×1022 H2O molecules 3) 4.9×1025 O3 molecules 4) 9.63×1019…

Q: A compound is found to contain 7.962% silicon, 20.10% chlorine, and 71.94% iodine by weight. (To…

A: Here, we have to find the empirical formula and molecular formula of the compound % of Si = 7.962  %…

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

A: mass of octane (C8H18) = 1.5 gmolar mass of octane (C8H18) = 114 g/molmoles of octane (C8H18) = ?

Q: What is the percent by mass of carbon in ethylamine, C2H7N? Note the following atomic weights: H…

A:

Q: 2. How many H atoms are in 72.5 g of isopropanol (rubbing alcohol), C3H8O?

A:

Q: How many molecules of C2H4 are in 15.0 g of this compound?

A: The molecular formula of compound is C2H4. The amount of compound is 15.0 g.

Q: The chemical formula for chlorophyll is C 55 H 22 MgN 4 O 5 a) What is the molar mass of the…

A: Molar mass of a substance is the mass of one mole of that particular substance. The no of moles in a…

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

A:

Q: How many MOLECULES of water are present in 9.27 grams of this compound? A) 7.10 x 1023 molecules H,0…

A:

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: 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: A compound containing carbon, hydrogen, and oxygen was analyzed. The analysis revealed a composition…

A:

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

A: Molecular formula can be calculculated by using below formula : Molar massg/molEmpirical formula…

Q: What mass of compound is present in 7.60 moles of each of the following compounds? a.) Ca3(PO4)2 b.)…

A: In chemistry, number of moles refers to a unit of amount. It can also be defined as the mass of a…

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

A:

Q: If an air conditioning unit is charged with 7.0x10^22 molecules of R-113 (C2Cl3F3), what mass of…

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

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: . How many ATOMS of carbon are present in 9.01 grams of carbon tetrachloride ?

A: Number of moles = mass/molar mass  Molar mass of CCl4 = 153.82 g/mol  1 mol = 6.022 × 1023…

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

A:

Q: 5. How many carbon atoms are in one mole of C6H1206?

A: Note : As per our guidelines we are supposed to answer first question. Please repost the other…

Q: Complete the table of compounds that contain only carbon and hydrogen. % Η (by % С (by mass) Molar…

A: Using the relation,% by mass=mass of the elementmass of the compound×100

Q: A compound has an empirical formula of HgCl. If the molecular mass of the compound is 472.2 g/mol,…

A: Here we are required to find the molecular formula.

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: Arrange the following substances in order of increasing mass percent of carbon. a. caffeine.…

A:

Q: 1. How many moles of Zn are there in 6.52 x 10^21 atoms of Zn?…

A: Zn are there in 6.52 x 10^21 atoms of Zn. We have to calculate how many moles of Zn are in  6.52 x…

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

A:

Q: Ethanol has a molecular formula of CH3CH2OH. 1.) What is the molar mass of ethanol? 2.) What is the…

A: 1) molar mass = sum of atomic mass of each atom present  in the molecule  Since in ethanol we have 2…

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Cyanocobalamin is vitamin B12 with molar mass of 1355.38 g/mol

Q: 1. How many ATOMS of nitrogen are present in 6.28 grams of dinitrogen tetrafluoride ? atoms of…

A: The molecular formula of dinitrogen tetrafluoride is:-  N2F4 Avogadro number is 6.022×1023 The molar…

Q: The empirical formula for a compound is CH20, and the molar mass is 180.2 g/mol. Which is the…

A: The question is about to determine the Molecular Formula of the Compound from the given Empirical…

Q: 6) Chlorophyll has the formula C5s H72 Mg N4 Os. How many grams of carbon are required to combine…

A: Introduction: We have to tell the mass of carbon in chlorophyll.

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

A:

Q: How many moles of dinitrogen tetrafluoride, N2F4, are present in 1.12 grams of this compound?…

A: Dinitrogen tetrafluoride has a molar mass of 104.01 g/mol. Now, we proceed to solve the questions…

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.