14. Lenthionine is composed of carbon, sulfur, and hydrogen. A 5.000 g sample of lenthionine contains 0.6375 g carbon, 0.1070 g hydrogen, and the remainder is sulfur. The molar mass of lenthionine is 188.4 g/mol. Determine the empirical and molecular formulas of lenthionine.

Q: A 45.00 g sample of tetraethyl lead contains 28.82 g lead, 13.37 g carbon and 2.81 g hydrogen.…

A: The given data: The mass of lead, (Pb)= 28.82 g The mass of carbon, (C)= 13.37 g The mass of…

Q: Upon burning Mg in air, magnesium oxide and magnesium nitride are formed. The correct statement…

A: In this question, we will see the correct statement for Magnisium nitride.  You can see details…

Q: Calculate the number of atoms per cubic meter in lead. The density and atomic weight of lead are…

A: Given,  The density and atomic weight of lead are 11.35 g/cm3 and 207.2 g/mol and the Avogadro's…

Q: Upon burning Mg in air, magnesium oxide and magnesium nitride are formed. The correct statement…

A: Here, it is given that, upon burning magnesium in the air, magnesium oxide and magnesium nitride are…

Q: 20. How many atoms does each prefix specify? mono-, di-, tri-, tetra-, penta-, hexa-.

A: An atom is the smallest unit in an element that has all the properties of that element. Molecules…

Q: what is the empirical formula of a coumpound that is 75.95% C, 6.33% H, and 17.72% N? keep elements…

A: coumpound that is 75.95% C, 6.33% H, and 17.72% N Atomic mass of N = 14 g Atomic mass of C = 12 g…

Q: Calculate the number of atoms in a 4.70×1034.70×103 g sample of lithium.

A: 1 mol of a sample contains 6.02×1023 atoms. Number of moles of sample can be determined using the…

Q: How many moles of iron is present in a 2.53-g sample of an oxide of iron that is 27.64% O by mass?…

A:

Q: The ionic compound CaCO3 has a formula mass of   A. 50 g/mole   B. 50 amu   C. 100…

A: We Know that,      Molar mass of Ca = 40 amu.     Molar mass of O = 16 amu.     Molar mass of C = 12…

Q: What is the mass percent of bromine in lithium bromide?? 1.47.6% 2.52.4% 3.92.01% 4.7.99%…

A: Answer: option 3) 92.01 % is the mass percent of bromine in lithium bromide.

Q: Vanadium forms four different oxides in which the percent by mass of vanadium is, respectively, (a)…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What is the empirical formula of a molecule containing four sulfur atoms and four fluorine atoms? A)…

A: Ans is B

Q: Part II- Moles 3) What is a mole? Describe the mole in terms of atoms, molecules and grams. DiscUss…

A: A mole is defined as 6.02214076 × 1023 of an atom, molecule, ion, or any other chemical unit. 1 mol…

Q: Complete the following table. Mass of Sample Moles of Sample Molecules in Sample Total Atoms in…

A: The question is based on mole concept The formula used and solution is given in the picture

Q: Samples of several compounds were decomposed, and the masses of their constituents elements were…

A:

Q: Aluminum has a density of 2.70 g/cm3 and molar mass of 26.98 g/mol. Its atomic radius is 143 x 10 –…

A: Answer:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: The elements present in the compound are given as Be, S and O. Hence we can assume that the…

Q: DIRECTIONS: Write Tif the statement is correct, and F if the statement is incorrect. 5. The…

A: The true and false statement has to be given,

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

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

Q: Barium and nitrogen form two binary compounds containing 90.745% and 93.634% barium, respectively.…

A: The formula of the compound in which the elements are present in the simplest whole number ratio is…

Q: Determine the number of moles of hydrogen atoms in each sample. a. 0.0885 mol C,H10 c. 2.4 mol C,H12…

A: a. 0.0885 mol C4H10 1 mol of C4H10 contains 10 mol of H. Thus, 0.0885 mol C4H10 will contain 10 x…

Q: What do you notice about the number of each atom in the reactants and of each atom in the products?…

A: Let us consider a balanced chemical reaction:HCl + NaOH → NaCl + H2OIn this above example we can…

Q: Describe in detail the concept of mole in Chemistry and how it relates to Avogadro's number?

A: Avogadro's number is 6.023×1023

Q: A compound consists of carbon and hydrogen. The molar mass of this compound is 44.1 g/mol. The…

A: Molecular formula of any compound can be determined by knowing the number of moles of each element…

Q: 9. Using the following reaction 2NaBr +CaF, →2NAF+ CaBr2 If 6 moles of CaF2 were added, what mass of…

A: Given  moles of CaF2 = 6 moles Molar mass of  CaBr2 = 199.9 gm/mole Mass of CaBr2= ?

Q: 4. Complete the following table Mass Moles Particles 3.65 moles Mg 29.54 g Cr 3.54 x 1025 atoms P…

A: Mass = Molar mass * Moles The no of particles in 1 mole = 6.023*1023

Q: Please provide all the work in detail because I will be using this to study

A: Consider the mass of compound is one gram.  The percent of each element is converted to grams as,

Q: 05) Calculate the molecular of potassium permanganate KMNO4. a) 176 amu b)158 c) 110 amu d) 80 amu…

A:

Q: titanium

A: Molar atomic mass of Ti = 47.87 gmol-1  Mass of Ti = 1.00kg = 1000 g  Moles of Ti = ( mass / molar…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17H22CINO4, of mass 23.5 mg.

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: The waters of the oceans contain many elements in trace amounts. Rubidium, for example, is present…

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

Q: How many Praseodymium atoms are present in 2.99 moles of Praseodymium ?

A: Given : 2.99 moles of Praseodymium ( Pr) Molecular weight of Pr = 140.91 grams

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: How many fluorine atoms are present in 117.99 g of sulfur hexafluoride? O a. 4.865 1024 fluorine…

A: The molecular formula of sulfur hexafluoride is SF6. The mass of sulfur hexafluoride is = 117.99 g…

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: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: The imaginary element Beesium (Element symbol: Bs) is a group 1A (1) element. Upon reacting with N,…

A: Write name of imaginary inorganic compound --

Q: 11.The Nicotine molecule has been found to have a molar mass of 162.1 g/mol and a composition of…

A: Empjirical Formula : It is a chemical formula of a compound where moles of each atom is represented…

Q: How many atoms of chlorine (CI) are present in 0.072 g of FeCI,? Given that ; Fe= 56 g /mol, Cl=…

A: Given that mass of FeCl = 0.072 g Molar mass of Fe = 56 g/mol, Cl = 35.5 g /mol Hence, molar mass of…

Q: Naturally occurring chlorine that is put in pools is 75.53 percent 35Cl (mass = 34.969 amu) and…

A: Given : There are total 2 naturally occurring isotopes of chlorine Mass of isotope 1 i.e 35Cl =…

Q: 1. How many ATOM nitrogen trifluoride atoms c

A: Note: According to our guidelines we are supposed to answer only first question

Q: Two binary oxides of the element manganese contain, respectively, 30.40% and 36.81% oxygen by mass.…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula is the simplest ratio of the elements present in the given molecular formula.…

Q: What is an empirical formula? What is a molecular formula? Do ionic compounds have molecular…

A: Empirical formula  :-   The empirical formula is the simplest formula for a compound which is…

Q: the mass percent of magnesium in MgSO4.

A:

Q: An experiment requires that enough SiCI2 I2 be used to yield 18.1 g of iodine. How much SiCI2 I2…

A: Mass of iodine produced = 18.1 g   From the reaction we get that , 1 mol SiCl2 produce = 1 mol I2…

Q: Based on your answer in Part A (0.1 mol 13C), calculate the number of atoms in this amount of 13C?

A: One mole of any elements contains Avogadro number of atoms.  Avogadro number is 6.022*1023.

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.