Assuming that the shape of atoms is spherical, what is the diameter (in angstroms) of an atom that has a volume of 1.3 x 1023 cm2? Note: Don't use significant figures in this question. Select one: OA. 3.475 OB. 1.737 OC. 1.091 OD. 1.459 OE 2.917

Q: Purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all of the…

A: Given:  Purple atom = Iodine (I) White atom = Hydrogen (H)

Q: In 1808, John Dalton proposed a series of statements regarding the atom that became known as…

A: Given, Five statements of Dalton's atomic theory is given -     Required,                   Among…

Q: Matter is made up atoms, but in a real chemistry lab, we measure substances in grams. Therefore you…

A: Consider the given information about quartz is as follows; One molecule of quartz contains = 1 atom…

Q: 2. The approximate radius of a nucleus, r, is given by the formula r = A$(1.3x10-13cm), where A is…

A: Given: Atomic radius of Al = 143 pm Radius of nucleus=A13(1.3×10-13) cm

Q: The U.S. Environmental Protection Agency (EPA) sets limits on healthful levels of air pollutants.…

A: The number of lead atoms can be calculated as follows:

Q: We experimented on various elements: Mossy Zinc, Aluminum Turnings, Copper Turnings, Activated…

A:

Q: An 8.925 g sample of a compound containing only carbon, hydrogen, and oxygen gives 9.258 g of carbon…

A: Given : Mass of compound = 8.925 g Mass of CO2 produced = 9.258 g And mass of H2O produced = 5.351 g…

Q: What is the mass percentage of phosphorus in a sample of 8.53 phosphorus oxychloride containing a…

A: Mass percentage of phosphorus = 20.16 %

Q: The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride…

A: After the decomposition of sodium fluoride, the mass of fluorine produced is calculated by using the…

Q: D. Empty Volume Determination of Aluminum A sample of aluminum weighs 27.0 g and has a volume of…

A:

Q: B How may oxygen atoms are in 225 g of oxygen gas? 4.23 x 102+ b. 6.84 x 10²4 8.47 x 10²4 1.69 x…

A: To calculate the number of oxygen atoms in 225 g of Oxygen gas.

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

A:

Q: 6. How many oxygen atoms are in 225 g oxygen gas? a. 4.23 x 104 C. 8.47 x 10:+ b. 6.84 x 10²4 d.…

A: The Given amount of oxygen gas O2 = 225 grams        the molar mass of O2 = 32 g/mol To calculate…

Q: ance the following equations: NH, (g)+O, (g) → NO, (g) +H,0 (g) А.) Al(NO,); + Na,S → Al,S, + NaNO,…

A: To balance the chemical equation we first need to count the number of atoms of each element on both…

Q: 3.72 (A) what is the atomic weight of the halogen X? Express your answer using two significant…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: The number of O atoms in 1 mole of NO2 is A. 2 B. 1.204 x 1023 C. 6.02 x 1023 D. 1.204 x 1024

A: A mole of substance can be defined as a substance which contains exactly 6.022×1023 atoms,…

Q: 7. Name each of the following compounds: c. KMNO d. K,Cr,O, a. BaSO, b. NANO2

A: Some of the prefixes are used in naming the inorganic molecular compounds, they are listed below.…

Q: The radius of a rhodium atom is 134 pm. How many rhodium atoms would have to be laid side by side to…

A: We have to calculate the number of rhodium atoms.

Q: Last, need help with question Number 5

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Q: In the ammonia (NH) molecule of the figure, the three hydrogen (H) atoms form an equilateral…

A: You can find the center of mass of the 3 Hs first, then find the center of mass between that point…

Q: a)Using the data provided, determine the mass percent of water and the mass percent of anhydrous…

A: Given, mass of hydrated copper (II) sulfate: 131.4g mass of anhydrous copper (II) sulfate: 130.26g…

Q: Matter is neither created nor destroyed in a chemical reaction. Thus, the mass of the products of a…

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Q: Need help

A: The mass of water in oxalic alumina is determined as,

Q: Calculate the mass of one bromine atom. a. 6.022 x 1023 g O b.4 812 x 1025g O c. 1.327 × 10-22 g O…

A: Atomic mass is defined as the quantity of matter that is present in an atom of element.

Q: The naturally occurring isotopes of sulfur, their atomic masses, and abundances are: S-32 : 31.97207…

A: e. The average atomic mass of isotopes can be calculated using the following expression:…

Q: When a chemical reaction occurs, atoms rearrange to form new compounds, but no new atoms are created…

A: Figure shows A is single element. There are 4 A atoms present in the reactant side. B is diatomic…

Q: The radius of a hydrogen atom is 37 pm (1pm 10-12m). How many hydrogen atoms lined up side to side…

A: Given,Radius of hydrogen atom = 37 pmDiameter of hydrogen atom = 2 × radius = 2 × 37 pm = 74 pm…

Q: A sample of calcium nitrate crystal hydrate with its mass of 1.1808 g was heated at 150oC resulting…

A:

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm3. How many…

A:

Q: Iron is found in Earth's crust as seve pounds. Calculate the mass (in kg) c contains 1.0 X 10° kg of…

A: Molecular-Mass: Molecular mass is the sum of atomic masses of the elements present in a molecule. It…

Q: Calculate the mass (in mg) of 9.85 x 1019 CCl2F2 molecules.

A: The relation between mass and number of moles of a substance is as follows,…

Q: gas. D. Matter with a defined shape and defined volume. E. The formation of new substances by…

A: We have to match the right answer

Q: 1. A mole of hydrogen gas (H₂) is compared with a mole of lead (Pb). You can be certain that the…

A: One mole represents 6.023 x1023 particles. So, one mole of a substance = 6.023 x1023…

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

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Q: What is the mass of one atom of I? O 6.641 x 10-23 g O 4.745 x 10-22 g O 2.107 x 10 22 g O 3.443 x…

A: To determine the mass of 1 atom of I, do the following : 1) Determine molar mass of the substance.…

Q: 70 ml of 0.3 normali (sulfuric acid) was taken to prepare 60 ml of sulfuric acid solution. What is…

A: Introduction: For the preparation of dilute solution from a stock solution, we can use the following…

Q: If green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white…

A: We are given that, Green spheres represent chlorine atoms. yellow-green spheres represent fluorine…

Q: A sulfur dioxide gas sample has a volume of 242.62 mL at 242279 pascals and 82.99oF. Calculate the…

A:

Q: A block of gold (Au) has the dimensions (I × b x h) = 0.7600 in x 8.558 mm x 1.816 cm. 1 in = 2.54…

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Q: Calculate the mass of Cu in g from 8.20 kg CuFeS2

A: From the chemical formula it is clear that 1 mole CuFeS2 contains 1 mole Cu. Molar mass of…

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm3. How many…

A: The question is based on mole concept. We have been given diameter of the silicon atom. we have to…

Q: 2.43 g magnesium was completely burnt in oxygen to give magnesium oxide. 2 Mg(s) + O2(g) → 2 MgO(s)…

A: Answer: This question is based on the stoichiometric calculation from the chemical equation.

Q: Hydrogen peroxide (H2O2) is a mild antiseptic used to prevent infection in minor cuts and scrapes.…

A:

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm3. How many…

A: Given : Density of silica = 2.20 g/cm3  And diameter of grain of sand = 0.455 mm

Q: 1)Describe the PHYSICAL PROPERTIES of the following substances? 2)Specifically, what type of…

A: Physical properties of following substances. 1. Halogen : Halogens are non metals. Fluorine and…

Q: 8+83= %3D Oxygen Carbon %3D

A: Combination reaction: A combination reaction is a type of chemical reaction in which two reactants…

Q: 6. How many oxygen atoms are there in 2.5 g of oxygen gas? a. 2.4 x 1022 b. 4.7 x 1022 c. 9.4 x 1022…

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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.