11.The Nicotine molecule has been found to have a molar mass of 162.1 g/mol and a composition of 74.0% C and 8.70% H and 17.3% N. What is its true formula? A) C5H7N B) C6H8N2 C) C2H5N D) C10H14N2 E) None of the above.

Q: 1. How does molecular formula differ from empirical formula and structural formula? Cite an…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Determine the number of moles of H in each sample. 9.06 mol NH3 0.116 mol N2H4 34.0 mol C10H22

A:

Q: Determine thev molar masses of these compounds  g) C12H22O11 h) Al2(SO4)3 i)(NH4)2HPO4

A:

Q: What is the molecular formula of a compound that has 85.7% Carbon and 14.3% Hydrogen and has a mass…

A: Given :- percent composition of C = 85.7%  percent composition of H = 14.3 %  Mass of compound =…

Q: Calculate the formula mass for Cr(C2H3O2)3 to the hundredths’ place (use 1.01 amu for hydrogen)

A: The molecule is Cr(C2H3O2)3

Q: Determine the mass of one formula unt of barium hexafluorosilicate, BASIF6(s). a. 1,68 x 1026 g b.…

A:

Q: A compound is 82.6% carbon and 17.2% hydrogen. What will be the empirical formula of the compound?…

A: given - 82.6 % carbon 17.2 % hydrogen  empirical formula = ?

Q: Empirical formulas of the following compounds: 1. C2N2 2. Na2S2O4 3. K2Cr2O7 4. C6H6

A: Given molecular formulas: 1. C2N22. Na2S2O43. K2Cr2O74. C6H6  We have to write the empirical…

Q: Determine the number of moles of hydrogen atoms in each sample.a. 0.0885 mol C4H10 b. 1.3 mol CH4c.…

A:

Q: A theoretical molecule exists as a hydrate (has non-covalently bound waters of hydration) with a…

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Q: Determine the molecular formula for a compound consisting of 95.21% carbon and 4.79% hydrogen with a…

A:

Q: What are the molecular and empirical chemical formulas of a compound made up of these molecules?…

A: Given : Structure of Compound is given  To find : Molecular formula and Emperical formula Solution :…

Q: A compound is made up of 81.71% carbon and 18.28% hydrogen. Determine the empirical formula. O CH O…

A: This question belong to some basic concept of chemistry that is mole concept. We have solved this…

Q: 1. Determine the molar mass of (a) potassium hexachloroiridate(IV), K2lrCls and (b) trifluorosilane,…

A: Determine the molar mass of the given complex--

Q: Calculate Moleculer mass of the H2SO4

A: Solution-  H2SO4 is the a strong acid.  atomic masses of H, sulfur and oxygen. H = 1.008 g/mol S =…

Q: Determine the simplest formula of nicotine which have the composition of 74.0 % C, 8.65 % H and…

A: Given: The composition of C (carbon) in nicotine is 74.0 % The composition of H (hydrogen) in…

Q: 4. Determine the molecular formula of the compound with an empirical formula of CH and a formula…

A:

Q: Write these molecules/ions in your notebook (in the tal (1) XeF2 (2) BCl3 (3) COC2 (4) SF4 (5) IFs…

A: The correct answer is given below

Q: A compound has a molar mass of 155.5 g/mol. The empirical formula of the compound is C₂H₇. How many…

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Q: Write empirical formulas for the compounds represented by the molecularformulas.(a) C4H8 (b) B2H6…

A: Empirical formula is the chemical formula of the compound which expresses the simplest whole number…

Q: Determine the number of moles of hydrogen atoms in sample. 0.0885 mol C4H10

A: The number of moles of an atom present in a molecule is given by the chemical formula.

Q: 7. The mass of 2.27 x 10-2 mol of a molecule is 1.0g. Identify the molecule. OC₂H6 Onone of these…

A:

Q: Calculate the number of moles of ClCl atoms in 1.20×1024 formula unitsformula units of magnesium…

A: Since formula units = molecules And in 1 formula unit of MgCl2 we can see we have 2 Cl atoms hence…

Q: 2. Determine the molecular formula of a compound with an empirical formula of NH2 and a formula mass…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: containing 3.12g lithium, 2.72g carbon, and 10.83g oxygen

A: Element maas mole Simple ratio Li 3.12 3.12/7=0.446 0.446/0.227=2 C 2.72 2.72/12=0.227…

Q: Which is not a molecular compound? O H2S O MNF2 O CH4 NO

A: CH4 is not a molecular compound

Q: 20. Find the empirical formula for a compound with 34.6%C, 3.9%H, and 61.5%0. O C,H3O3 O C3H¾O4…

A: Element % At.mass Divide % by at. mass No. of moles Divide moles by smallest value…

Q: The molecular formula of a compound whose simplest formula is CHO2 and whose molar mass is 135.0…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Haw many Chdovie atoms are in 25.0g tof Ccly2

A:

Q: B. Calculating Average Molecular Mass 1. Glucose- C6H12O6 2. Tetrasulfur dinitride- S«N2 3. Diboron…

A: Average molecular mass can be calculated as follows

Q: Determine the number of molecules in 13.2 grams of CCl₄.

A:

Q: A compound contains 15.94% boron with the remainder being fluorine. What is the empirical formula of…

A: The emperical formula can be determined by using the composition of the constituent species as-

Q: Classify each compound as ionic or molecular.a. CF2Cl2 b. CCl4 c. PtO2 d. SO3

A: A chemical compound consists of two or more different elements which are bonded with each other…

Q: Calculate the mass percent composition of carbon in each carbon-containing compound.a. CH4 b. C2H6…

A:

Q: Determine the empirical formula of each compound: C2H6, NO2, C6H12O6, C2H4O

A: In empirical formula the ratio of atoms in the compound should be lowest. Since in C2H6 the lowest…

Q: Calculate the number of molecules in 18.5 grams of glucose, C6H12O6- O 5.05 x 1023 O 5.63 x 1022 O…

A: Number of moles of Glucose  = mass/molar mass = 18.5/180 = 0.1028 moles 1.0 mole of any substance…

Q: Calculate the formula mass of the molecule from its structure. IN formula mass: amu N N

A: Formula mass of a molecule is defined as the sum of atomic mass of each atom present in the molecule…

Q: Consider a 2.12 g sample of C2H2. How many molecules are in this sample?

A: Given: Weight of C2H2=2.12 g The molar weight of the C2H2=26g/mol

Q: 16.04g

A:

Q: Consider the compounds CO2 and C3H8. Describe the similarities and/or differences of each compound's…

A: Molecular formula of a compound shows the exact number of each atom in the compound but empirical…

Q: Calculate the number of molecules in 4.08 moles of CCl4

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

Q: II. NAMING/WRITING MOLECULAR COMPOUNDS Instructions: Name or write the formula of the following…

A:

Q: What mass of sodium would be in a 124.56 g sample of sodium thiosulfate? Na2S2O3?

A: Introduction: Mass of  sodium thiosulfate = 124.56 g

Q: Calculate the number of H atom in 3.206g of Caffeine (C8H10N4O2)

A: Molar mass of caffeine = 194.19 g/mol Mass of caffeine given = 3.206 g no. of moles of caffeine =…

Q: How many H2O molecules are there in a snowflake weighing 1 mg?

A:

Q: Determine the number of molecules or formula units in each sample. 48 kg of molybdenum(VI) oxide,…

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Q: Which of the following is a molecular compound? (A) PCl5 (B) P4 (C) NH4Cl (D) NaCl (E) All…

A: A molecular compound can be defined as a compound where the atoms share electrons through covalent…

Q: Calculate the number of moles in sample. 12.4 g C12H22O11

A: The no of moles can be calculated from given mass and molar mass.

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.