a) What is the average atomic mass, in amu (atomic mass unit), of one iron atom. b) Using the average atomic mass, calculate the mass, in amu, in 133 iron atoms. c) How many iron atoms are present in a sample of iron that has a mass of 7428 amu?

Q: How many atoms are present in 1.5 moles of nickel?

A:

Q: In 1961, scientists agreed that the atomic mass unit (amu)would be defined as the mass of an atom of…

A: Yes, the Avogadro number is changed and now becomes bigger than previously. Yes, the definition of a…

Q: 0. present in a 20g sample of Sn Determine the number of atoms

A:

Q: This question pertains to ammonium bicarbonate. A) Estimate the mass percentage of oxygen in…

A: Molar mass of ammonium bicarbonate (NH4HCO3) = 79.056 g/mol  Mass of 1 mol ammonium bicarbonate…

Q: Nitrogen (N) and silicon (Si) form two binary compoundswith the following compositions:Compound…

A: (a) According to given information, in compound 1 the mass percent of N and Si is 33.28 and 66.72…

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022. how many electrons are present  in…

A: the number of copper atoms in a 3.0g lump of copper is 2.8x1022.  The number of electrons present in…

Q: The mole is defined in terms of the carbon-12 atom. Usethe definition to find (a) the mass in grams…

A: The quantity of a substance which consists of the number of carbon atoms in 12 g of pure carbon-12,…

Q: 3.1 What is meant by the term molecular mass, and whyis the molecular mass that we calculate…

A: The term molecular mass has to be defined, and the molecular mass that we calculate generally an…

Q: Naturally occurring chlorine consists of 35Cl (mass 34.96885 amu) and 37Cl (mass 36.96590 amu), with…

A: Chlorine has two isotopes, Cl35 and Cl37.

Q: On a periodic chart of the elements, molar mass (M), also called atomic weight, is often listed as…

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

Q: Calculate the number of oxygen atoms in a sample that has a mass of 288 amu

A: 1 oxygen atom has mass 16 amu or 16 amu is a mass of one oxygen atom. To calculate number of oxygen…

Q: A compound is found to contain 37.23 % carbon, 7.827 % hydrogen, ane 54.94 % chlorine by mass. What…

A: Empirical formula :- The simplest formula which represents only relative number of atoms of…

Q: Diamond is one form of an elemental carbon. An engagement ring contains a diamond weighing 1.25…

A: Given, Diamond is one form of an elemental carbon and an engagementring contains a diamond weighing…

Q: What is the mass of a sample of aluminum that has the same number of atoms that are in 20.0 g of…

A: The value is given as follows:

Q: What are the steps that we should take to find the number of atoms of Ag given 1.15g of silver?

A: Find the number of atoms of Ag given 1.15 g of silver ?

Q: Why is the mass of a mole of carbon atoms 12 times that of a mole of hydrogen atoms?

A: The solution is as follows:

Q: Part C Based on your answer in Part B, how many electrons are in this amount of 13C? Express your…

A: The electron is a subatomic particle with the symbol e or, whose electric charge is one elementary…

Q: The Japanese symbol for an atom has been written on a piece of copper metal using 99 iron atoms.…

A: 1 mol = 6.022×1023 [Avogadro's number]  The mass of one mole of atoms of an element is known as its…

Q: calculate the mass of a sample that contains 23 nitrogen atoms

A: Mole is the unit for the number of atoms or molecules of a material. One mole = 6.022×1023 molecular…

Q: A formula unit of potassium sulfide (K2S) would consist of what particles?

A:

Q: In mass analyzer ions are separated by mass to charge ratio why?

A: In a mass analyzer, ions are deflected from a straight line path and attracted to the negative side…

Q: Using the average atomic mass, calculate the mass in grams of 292 mol of Iron

A:

Q: What Is CHEMICAL COMPOSITION?

A: To find: The definition about chemical composition

Q: According to the law of multiple proportions, if 12 g of carbon combine with 16 g of oxygen to form…

A: According to the law of multiple proportion, two atoms combining in different ratios to form…

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: How many atoms of calcium are in 1.00 g?

A: Given  Mass of calcium    = 1 gram  Number of atoms = ?

Q: Calculate the mass of O, that is dis

A:

Q: The total number of atoms in CI2

A: Atom are the smallest unit of the chemical species. The total number of atom present in the…

Q: a. How many hydrogen atoms are in the picture? Nitrogen? b. Does the formula indicate how many atoms…

A:

Q: How many atoms are there in 89 molecules of acetic acid?

A: The chemical formula of acetic acid is CH3COOH.

Q: c- The formula for water is contains .. (... x1+...X 16 =....) D- the combustion of fuels is…

A: Water is a compound and is made of Hydrogen and oxygen. Chemical reactions are of various types-…

Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

A:

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

Q: The mass of an average neon atom is 20.2 atomic mass units. One atomic mass unit is equal to…

A: The term atomic mass unit can be defined as the unit of mass which is used to express the atomic or…

Q: Determine the mass percentage of carbon, C, hydrogen, H, and oxygen, O, in C,H1,0, Refer to the…

A: Mass percentage of an element can be expressed in terms of mass of element divided by its total mass…

Q: A mole of lithium atoms has a mass of 6.941g. What is the mass in grams, of a single lithium atom?

A: Number of moles of any substance can be calculated with the help of molar mass of the substance and…

Q: Calculate the mass of two atoms of Cr, Mo and W?

A: Mass of one atom of Cr is 52 u. Therefore, mass of two atoms of Cr is 104 u that is 252 u=104 u

Q: Calculate the mass of 700 atoms of nitrogen (N).

A: Given, number of nitrogen(N) = 700 atoms we are asked to calculate the mass of 700 atoms of…

Q: Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.58 kg of…

A:

Q: What is a chemical formula?

A:

Q: What is the average atomic mass of a mystery substance that is 27.5 at a mass of 37g and 72.5% at a…

A: Given: Mass =37 g  Percentage %=27.5 % Mass =38 Percentage % =72.5% Average mass=?

Q: Determine the number of each type of atom in formula. BaCl2

A: Given: BaCl2

Q: 1. How many ATOM nitrogen trifluoride atoms c

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

Q: Why are there no atoms of elements that have masses as stated on the periodic table?

A: In modern periodic table elements are arrangement based on their electronic configuration or atomic…

Q: A metal alloy containing 67% (by mass) lead and having a density of 9.4 g/cm3 . If the second metal…

A: Given Information -  mass % of lead,Pb= 67%  mass % of tin = 100% - 67% = 33%  mass of lead = 67 g…

Q: What is the formula weight for iron(III) oxide, in amu?

A: Given, Iron(III) oxide

Q: How many atoms of carbon are th

A:

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.