A bicycle part made of titanium, Ti, has a volume of 32 cm . Titanium has a density of 4.50 g/cm . Calculate the number of titanium atoms in that bicycle part

Q: The explosion of an atomic bomb releases many radioactive isotopes, including strontium-90.…

A: The position of the element strontium in the periodic table is marked in the diagram of the periodic…

Q: The diameter of a US penny is 19 mm. The diameter of a silver atom, by comparison, is only 2.88 Å.…

A: The diameter of one silver atom in the units of mm is calculated as follows:

Q: Element X reacts with chlorine to form a compound with the formula of X2Cl3. This compound contains…

A: Relative atomic mass: Cl = 35.5 g/mol

Q: 2H2 (g) + O2 (g) 2H20 (g) C(graphite) + CO{g) =2 CO(g) CO2(g) + H2(g) =CO(g) + H2O(g) Ke = 1.4 Ke =…

A:

Q: 5. How many hydrogen atoms in this compound? OH но OH А. 22 В. 23 Agu С. 21 D. 20

A: The given structure is an organic compound.

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: Write the chemical formula for the following compounds. a. barium nitrate b. strontium chlorate…

A: [a.] Ba(NO3)2 [b.] Sr(ClO3)2 [c.] (NH4)3PO4 [d.] CoS [e.] HgI2 [f.] CuCN

Q: Writing the formulas for the resulting compounds   silicate  selenide  hydrogen sulfate  Iron (iii)…

A: To solve this problem we have to write the formula of the given compound .   We know that the…

Q: D1. One atom has 20 protons and a mass number of 44. Another atom has 20 protons and a mass number…

A: The number of protons in an atom gives the atomic number of the atom. The sum of number of protons…

Q: 1. How many calories are released when 100. g of steam condenses? The heat of condensation for water…

A: Given: Mass of water = 100 g The heat of condensation for water = 540 Cal/g

Q: (b) H2S to SO,² (acidic) Atoms: Oxygen: Hydrogen: Electrons:

A: The given half reaction is  H2S→SO42- in acidic medium.

Q: 9. There are two binary compounds of titanium and chlorine. One contains 31.04% mass titanium; the…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: Figure 3. Diatomic molecules of the element chlorine, Cl2. This Figure 4. Molecules of the compound…

A: ⇒All atoms are made up of tiny particles ie,protons,neutrons and electrons⇒A n element is a pure…

Q: 4) Chlorine has two naturally occurring isotopes: Isotopes of Chlorine: Percent Abundance: 75.78%…

A:

Q: Calcium phosphide consists of two ions chemically bonded together. What are the charges of each ion?…

A: To write the chemical formula of compoundwhich follow the following rule:-(i) write the symbols of…

Q: Element X combines with phosphate ion to form X3(PO4)2. Element X is  A. Ca+2 B. Al+3  C. N-3 D.…

A: Given: Element X combines with phosphate ion to form X3(PO4)2 To identify Element X

Q: What are the basic units-single atoms, molecules, or for- mula units-that compose each substance?…

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

Q: Calculate the number of atoms in each sample.a. 14.955 g Cr                                    b.…

A: Since you have posted a question with multiple sub-parts we will solve the first three for you. To…

Q: When atoms of an element become ions, I. Atomic number, II. nucleon number, 9 - III. chemical…

A: Given options are : I. Atomic number  II. Nucleon number III). Chemical property When atoms of an…

Q: The most common ions for silver, zinc, and scandium areAg+, Zn2+, and Sc3+. Locate the boxes in…

A: Location of ions has to be given.

Q: What is the chemical formula for iron(II) phosphid

A: A compound's chemical formula is a symbolic representation of its chemical makeup. Chemical…

Q: is the chemical formula for the compound formed between tin(IV) and chlorine?   What is the…

A: Chemical formula tells us the number of atoms of each element  in a compound.

Q: Determine the number of atoms that would make up a 78.8 g sample of Tellurium.

A:

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: 68. What is the correct chemical formula for aluminum chlorate? O Al3C103 OAICIO3 O Al(CIO3)3…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Cu has two isotopes; 63 Cu in 70 % and 65 Cl in 30%. The average atomic mass of Cu atom. Is * O 63 О…

A: Given Natural abundance (%) Atomic Mass  63Cu 70 65 65Cu 30 63

Q: The chemical formulas of magnesium oxide, magnesium peroxide, and magnesium superoxide are…

A:

Q: The formula of europium oxide is EuzOs. Based on this information, what is the formula of the…

A: Atom combines in a simple ratio to form molecules of a specific compound.      In Eu2O3 valency of…

Q: How did the study of the atom contribute to our understanding of the periodic table of the elements?…

A: The modern periodic table is organised on the basis of atomic number of elements. Atomic number is…

Q: Give the formulas of the following compounds: potassium permanganate strontium cyanide copper (I)…

A:

Q: How many gold atoms are in a 0.277 ounce, 18 K gold bracelet?(18 K gold is 75% gold by mass)

A: The number of gold atoms in 0.277 ounce, 18K gold bracelet are to be calculated, where 18K gold is…

Q: A sample of iron sulfide is found with the formula Feo.87S. What percentage of the iron ions are…

A: The given formula of the compound is Fe0.87S1.00. Iron(Fe) can be present in +2 or +3 oxidation…

Q: The total number of atoms in 2CaCI

A:

Q: The chemical analysis of a binary hydrate shows that it is composed of 27.76% Mn, 35.82% Cl and…

A: Given: Mass composition of Mn = 27.76 % Mass composition of Cl = 35.82 % Mass composition of H2O =…

Q: The isotope of an unknown element, X, has a mass number of 79. The most stable ion of the isotope…

A: Mass number of an isotope represents the sum of protons and neutrons in its nucleus. In an atom,…

Q: The radius of a Niobium atom is 143 pm(b) The mass of a single niobium atom is 1.54×10-22 g. Suppose…

A: Given here,the radius of a Niobium atom is = 143 pm1 pm = 1e-12 m1 m = 100 cmSo,Diameter of 1…

Q: The element P has the atomic number 12. Element Q has the atomic number 16. What is the formula of…

A: The atomic number of an element indicates the number of protons or electrons present in it and it is…

Q: A sample of iron sulfide is found with the formula Feo.87S. VWhat percentage of the iron ions are…

A: Co-ordination compounds are formed when the metal ion is bonded to the ligand which donates its…

Q: Calculate the number of atoms in a 2.70×1032.70×103 g sample of strontium. number of atoms:

A: Gram atomic mass of strontium is 87.62 g.

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

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: A 67.2 g sample of a gold and palladium alloy contains 3.07×1023 atoms . What is the mass…

A: Given : Mass of sample = 67.2 g And total number of atoms = 3.07 X 1023 atoms Assuming the moles of…

Q: Consider a sample that consists of three green spheres and one blue sphere. the green mass is 3.00g…

A: Given : Mass of green spheres = 3g Mass of blue sphere = 1g

Q: A certain compound is made up of one phosphorus (P) atom, three bromine (Br) atoms, and one oxygen…

A: The given compound contains one phosphorus atom, three chloride atoms and one oxygen atom. The…

Q: A hydrate of magnesium sulfate has a mass of 13.52 g. This sample is heated until no water remains.…

A: Given, The mass of a hydrate of magnesium sulfate = 13.52 g The mass of magnesium sulfate = 6.60 g…

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.