A mole refers to the amount of substance which can be an atom, molecule, ion and other particle or group of particles. Which of the following DOES NOT relate to the concept of mole? deck of cards gallons of water bundle of sticks piece of paper

Q: In the chemical formula Mg(NO3)2, the numerical coefficient is equal to…

A: Chemical formula  are representation of molecules or compounds by fixed proportions of elements in…

Q: Sulphur has three common isotopes, with the masses and isotopic abundances shown below: Sulphur-32…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: a given compund always contains the same relative masses of its constituent elements. how is this…

A: A pure substance or compound is composed of two or more type of matter in definite proportion. For…

Q: Which if the following ionic compounds would contain the most total number of elements? (For…

A: Explanation to the correct answer is given below

Q: 1. What particles are composed of ionic compounds? A. Cations and anions C. Atoms D. All of the…

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Q: 6. Students in a chemistry course were asked the following question on unit exam: "Draw a diagram…

A: 1. If we consider 1 circle as 1 atom then both A and B diagrams are correct, where Diagram A…

Q: An iron atom has a mass of 9.27x10^−23g and a cooking pot has a mass of 0.500kg. What is the mass of…

A: Given: Mass of single iron atom = 9.27 X 10-23 g And mass of cooking pot = 0.500 Kg = 500 g…

Q: 11. A monoatomic anion with two charges contains 36 electrons. It is statements is false? А. Kr В.…

A: We have to consider an anion. Now going to the question A. is neutral atom…

Q: What does the law of conservation of matter mean in chemistry? O a. The state of the matter should…

A: The law of conservation of matter in Chemistry based on the fact that during a process total mass is…

Q: 2. The states that the total number of atoms does not change in a chemical reaction. 3. А combined…

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Q: In a series of experiments, a chemist prepared three differentcompounds that contain only iodine and…

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Q: Determine the molecular and empirical formulas of the following:(a) the organic solvent benzene,…

A: The molecular formula and the empirical formula have to be given. The chemical symbols for the…

Q: Identify all of the true statements regarding elements, compounds, and pure substances.    Pure…

A: Pure elements are made up of a single type of atom only. All the atoms should be of similar type.…

Q: . Polonium-210 is an alpha-emitting radioactive isotope that causes irreversible damage to organs…

A: Two questions based on nuclear reactions and general chemistry that are to be accomplished.

Q: In an experiment it was found that the total charge on an oil drop was 5.93 3 10218 C. How many…

A: Millikan estimated an electron's charge. All of the drops had charges that were multiples of 1.6 x…

Q: The element boron, a trace element in Earth’s crust, is found in foods produced from plants. Boron…

A: The correct option is C) Boron – 11.

Q: Rubidium has two naturally occurring isotopes. The average mass of Rb is 85.4678 u. If 72.15% of Rb…

A: Given, Average mass of Rb = 85.4678 u Isotope I, Rb-85 : natural abundance = 72.15 %  relative…

Q: 2.12. Use representations [A] through [I] in Figure P2.12, answer questions (a)-(f). a. Which are…

A: Since you have posted the question with multiple sub-parts according to the guidelines we have…

Q: -In this molecule, is Cl = Chlorine a neutral atom, an ion or an isotope? %3D -In this molecule, Mg…

A: NOTE : Since the molecular formula is not visible in the pic, I'm assuming it to be MgCl2 as per the…

Q: Which is a compound? A. A piece of pure zinc metal B. A molecule made of nitrogen and oxygen C. An…

A: Compound: A molecule consisting of two different elements is called compound

Q: Water and sodium chloride are both considered substances as well as compounds, but water exists as…

A: In this question, we have to give the reason why water and sodium chloride are both considered…

Q: A sample of Cs weighs 99.5 grams. Will a sample of S that contains the same number of atoms weigh…

A: 1 mole of any substance = 6.022 x 1023 atoms (Avogadro number)   No. of moles of a substance can…

Q: It is well known that the element magnesium has three naturally occurring isotopes. Mg-24 represents…

A: It is clearly indicates that the Mg-24 posses a natural abundance of 79% along with other isotopic…

Q: When copper (Cu) and oxygen (O) combine, two different compounds are formed. The first compound…

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Q: To which classes of matter—element, compound, and/ormixture—do the following apply: (a) law of mass…

A: The law of conservation of mass deals with the conservation of matter and law of definite…

Q: Jotmest Atoms are the smallest spherical particles that make up any matter. If 6.0x1023 atoms of…

A: Introduction: Atomic mass is an average of the masses of a number of different atoms.It is also…

Q: 4. Who discovered the neutron in 1932? A. Democritus C. Ernest Rutherford B. James Chadwick D.…

A: Mass number Mass number gives the number of protons and neutrons in an atom.

Q: What is the volume of a molybdenum atom in microliters?

A: 1 cm3 = 1 mL  1 mL = 0.001 L  1 mL = 1000 microliters

Q: How many protons and electrons are there in a neutral atom of each of the following elements?

A: Number of protons in a neutral atom is equal to its atomic number. Number of electrons in a neutral…

Q: In the following descriptions the particles are atoms, molecules, or ions.To which sample above does…

A: Comparing solid, liquid and gas, gases are more compressible since most of the volume of a gas have…

Q: A hypothetical element has only 3 isotopes, with the following masses: Isotope 1:  44.98 u Isotope…

A: Isotopes are the elements which have same atomic number but exhibits different mass number. To…

Q: How many protons and electrons are there in a neutral atom of each of the following elements? Part A…

A: The atomic number of an element tells about the number of electrons and protons present in an…

Q: Use the conversion factor: 1 amu=1.66054x10-24 g to answer the questions. 1. How many atomic mass…

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Q: Explain the following statement: The smallest particles uniqueto a compound cannot be atoms

A: A compound can be described as a substance consisting two or more elements present in unique…

Q: Calculate the mass in grams of one mole of each of the following (the mass of a single item is given…

A: Number of particles in 1 mole = 6.023 × 1023 Mass of 1 electron = 9.10938 × 10-28 gm Mass of 1 mole…

Q: An element's percentage of the total mass in a compound containing the element. A law stating that…

A: The composition of a chemical compound is determined using elemental analysis of inorganic elements.…

Q: Atoms are the smallest spherical particles that make up any matter. If 6.0x1023 atoms of aluminum…

A: Calculation of the mass of 1 atom of aluminium in picograms:

Q: polyatomic ions?

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Q: SECTION 2: WHY DOES A MOLE HAVE A DIFFERENT MASS? PART A: WATCH THE VIDEO to fill in the blanks and…

A: To fill in the blanks on the information about atom

Q: Palladium forms three different compounds with sulfur. The mass of sulfur per gram of palladium in…

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Q: Argon has three common isotopes, with the masses and isotopic abundances shown below: Argon-36 --->…

A:

Q: U-238 is naturally the most abundant form of uranium; however, only U-235 can be used as fuel in a…

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Q: 2. The creation of carbon monoxide is an effect. What is one cause? A. the regrouping of the atoms…

A: 2. Operating a stove. 3.  A harmless compound can become harmful when its elements are separated. 4.…

Q: Which element is represented by the following symbol A. Chromium B. germanium C. barium D. iron

A: The given symbol of element is                       5624X  Here,  Mass number of element = 56…

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.