Which of the following are ionic, and which are molecular?(a) PF5, (b) NaI, (c) SCl2, (d) Ca(NO3)2, (e) FeCl3, (f) LaP,(g) CoCO3, (h) N2O4.

Q: The lanthanide elements react with oxygen to give compounds of the type Ln2O3 (where Ln stands for a…

A: Empirical formula :- The simplest formula which shows only the relative number of atoms of different…

Q: If the molecular mass of an oxide of nitrogen is 108 and 4.02 g of N combine with 11.48 g of O, what…

A: Given, Given mass of nitrogen = 4.02 g Molar mass of nitrogen = 14.01 g/mol Given mass of oxygen =…

Q: Give the number of atoms of the specified element in a formula unit of each of the following…

A: a) The given compound is C6H5COONH4 The number of a hydrogen atom is 9 The molecular mass of the…

Q: Write the empirical formulas of the following compounds: (a) Al,Br6, (b) Na,S,O4, (c) N,O5, (d)…

A: Interpretation -  To write the empirical formula of the given compounds -  Al2Br6 Na2S2O4 N2O5…

Q: Name the following ionic compounds: (a) Li2O, (b) FeCl3,(c) NaClO, (d) CaSO3, (e) Cu1OH22, (f )…

A: Following points should be kept in mind while naming the ionic solids: The cation is named before…

Q: Your doctor has diagnosed you as being anemic-that is, as having too little iron in your blood. At…

A:

Q: Give the name or chemical formula, as appropriate, for eachof the following acids: (a) HBrO3, (b)…

A: (a) The name of HBrO3 is Bromic acid. (b) The name of HBr is Hydrogen bromide. (c) The name of H3PO4…

Q: A metal (M) forms an oxide with the formula M2O. If the oxide contains 16.99% O by mass, what is the…

A: The given data contains, mass of Oxygen = 16.99 g. Thus mass of M= 100-16.99 = 83.01 g.

Q: Give the number of atoms of the specified element in a formula unit of each of the following…

A: Given: (a) Oxygen in aluminum sulfate, Al2(SO4)3(b) Hydrogen in ammonium hydrogen phosphate,…

Q: Which of the following chemical formulas corresponds to an acid?

A: Acid:  The substance which donate H+ ion in aqueous solution is called as acid. Answer : NHO3.…

Q: 1. Ethane gas, C:H6, burns in air (i.e reacts with oxygen in air ) to form carbon dioxide and water:…

A: Ethane combustion to form carbon dioxide and water, from this balanced stoichiometric equation used…

Q: The composition of sorbic acid is 64.3% C, 7.2% H and 28.5% O. Since its molecular mass is 112 alb,…

A: Given : Mass % : C=64.3% H=7.2% O= 28.5%

Q: A 3.23 g sample of calcium sulfide was decomposed into its constituent elements producing 1.80 g of…

A:

Q: 1. Sodium is an alkaline metal which is very reactive and so is not found free in nature. Sodium…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The Law of Definite Composition assures that when oxygen and hydrogen react with one another they…

A:

Q: a) How many calcium ions are there in 2.81 mol Ca3N2? b) How many nitride ions are there in 2.81…

A: A. We have to calculate the number of Ca+2 ions. B. We have to calculate the number of N3- ions.

Q: Sodium is an alkaline metal which is very reactive and so is not found free in nature. Sodium forms…

A:

Q: There are ________ atoms of hydrogen in 300 molecules of CH3CO2H.

A: It is given that there are 300 molecules of CH3CO2H.

Q: (c) 3.25 M KASO lons: O KAS Dot O AsO, OK O AsO, M (cation]- [anion]-

A: Dissociation of 1 K3AsO4 gives 3K+ and 1 AsO43-: K3AsO4  ------->  3K+  +  AsO43- So, Molarity of…

Q: 1.The formula mass of the compound between gallium (III) and oxalate ions in g/mol is: Group of…

A: The formula mass of a compound is the total average atomic masses of each atom which is showed in…

Q: What is the molar mass of the compound with the formula X2Y2Z7, where X is an alkali metal from the…

A: Given: The compound with the molecular formula, X2Y2Z7, X= alkali metal from the 3rd period. Y= an…

Q: Calculate the molecular mass of the following substances: (a) Ibuprofen, C13H18O2 (a drug used as…

A: Introduction: Molar mass is the mass of 1 mole of a substance in a gram. It is also called molecular…

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: 1-How many oxygen atoms are there in 1?25 x 1018 water molecules?

A: Number of water molecule = 1.25 × 10^18molecule

Q: Write the symbol for F, Cl, Br, I, O when they react to form ions. Are they cations or anions?

A:

Q: 1. Li,0 Lithium oxide 2. CS, Carbon Sulfide 3. C,H, ethyene

A: Lewis structure is a method of representing bonding pattern present in the molecule. NOTE :…

Q: Give the number of atoms of the specified element in aformula unit of each of the following…

A:

Q: Which of the following species is NOT a compound? A. Glucose, C6H12O6 B. Water, H2O C. Methane gas,…

A: Molecule: It is a chemical substance formed by a single atom of the element or by the combination of…

Q: What is the % composition of Oxygen in Ammonium sulfate, (NH₄)₂SO₄ ?

A:

Q: What is the empirical formula of terephthalic acid, C8H6O4 ?

A: Empirical formula represents the elements of the molecule in the simplest whole number ratio.

Q: 2. What is the mass percent of iron in Fe(NO3)3 • 9H2O?

A:

Q: The number of nonmetallic atoms in Al2 (SO3 )3 is?

A: The given compound is Al2(SO3)3. In periodic table right end elements are non metals and left end…

Q: xplaining to me in great detail how to name Sr(OH)2 and Fe(OH)3 compounds. What type of compounds…

A: Given : We have to tell about the given compounds .

Q: How many total ions are there in one formula unit of Al2(CO3)3?

A: Compound is a chemical species which is composed of more than than one elements. For example water…

Q: What is Brownian motion? How is it related to the development of the idea that matter is…

A: The collision of microscopic particles suspended in either liquid or gas makes the particles travel…

Q: Which of the following are ionic, and which are molecular?(a) PF5, (b) NaI, (c) SCl2, (d) Ca1NO322,…

A: The compounds which are formed by its respective cations and anions  through electrostatic…

Q: The anticancer drug Platinol (Cisplatin), Pt(NH₃)₂Cl₂,reacts with the cancer cell’s DNA and…

A: The amount of a particular compound present in a solution is expressed by the various concentration…

Q: Calculate the mass (in kg) of 4.87 x 1025 atoms of Zn. O 8.09 kg 1.24 kg 5.29 kg 1.89 kg O 1.09 kg

A:

Q: Cobalt(II) sulfate heptahydrate has pink-colored crystals. When heated carefully, it produces…

A: The roman number (II) written after Cobalt in the names Cobalt(II) sulfate heptahydrate and…

Q: 2. Write the formula of: a) Ferrous dichromate b) Mercurous hydroxide c) Barium nitrate d) Ammonium…

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Q: When potassium chromate, K,CrO, is dissolved in water, what ions are produced? no ions are formed K*…

A:

Q: Which of the following compounds is a nonelectrolyte? a. acetic acid, CH3COOH b. hexane, C6H14 c.…

A: A compound which is not change into ions is known as non electrolyte.

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: Formula mass of H20 |(2Н atoms) * (1.01 ати)) + (10 atom) * (16.00 ати)] — 18. 02 ати Water (H2O)…

A: Solution :           Formula mass gives us the sum of the atomic weight of atoms in the formula unit…

Q: Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of…

A: Isotopes are elements with the same number of protons but differ in the number of neutrons. The…

Q: A compund with the formula M(NO3 )2 contains 53.4% oxygen by mass. What is the identity of element…

A: Let the molar mass of M be x g/mol Molar mass of N = 14 g/mol Molar mass of O = 16 g/mol Thus, molar…

Q: Which of the following compounds containing H (mass =1), C (mass =12), and/or O (mass =16) has the…

A: Number of moles = mass/molar mass  Number of moles = number of molecules/avagadro's number  So,…

Q: Find the mass of 2.45 X 1023 molecules of Ca(OH)2? Use: Ca = 42.0g, H = 1.25g and O = 15.7g as…

A:

Q: Give the chemical formula for each of the following ionic compounds:(a) sodium phosphate, (b) zinc…

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

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.