Give the name and formula of the compound formed from the following elements: (a) 12L and 9M (b) 30L and 16M (c) 17L and 38M

Q: What is the molar mass of the following compounds.            a. Epsom Salt, the chemical formula…

A: (a) Molar mass of Epsom salt ( MgSO4 . 7H2O ) = (24 x 1) + (32 x 1) + (16 x 4 ) + (18 x 7)…

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: In the structure given below, the total number of Hydrogen and carbon atoms are: 9, 6 10, 7 10, 6 O…

A:

Q: Calculate the mass of the element hydrogen present in 55.4g of the compound with molecular formula…

A: We have to calculate the mass of Hydrogen present.

Q: Give the number of atoms of the specified element in the formula unit of the following compound and…

A: Leadhillite is a mineral of lead having the formula Pb4SO4(CO3)2(OH)2.

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

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Q: A metal (M) forms an oxide with the formula MO. If the oxide contains 39.70 % O by mass, what is the…

A: Molar mass of an element is its characteristic property .So to identify the metal, first its molar…

Q: The name of ZnSO4.6H2O is

A: The name of ZnSO4 . 6H2O is : The name of compound ZnSO4 . 6H2O is Zinc sulfate hexahydrate.

Q: An ionic compound has the following composition (by mass): Sr, 41.4%; N, 13.2%; O, 45.4%. a What is…

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Q: What is the mass of the molecular ion formed from compounds formed from having molecular formula:…

A: A molecular ion (a cation) is formed on removing a single electron from a molecule using a high…

Q: 2. If you have 1.00 grams of N22CO3, how many moles of Na2CO3 is that?

A: Given, mass of Na2 CO3 = 1.0 g Moles of Na2CO3  = ?  Firstly, find Molecular mass of Na2CO3

Q: Write the empirical formulas for (a) glucose, a substance also known as either blood sugar or…

A: Empirical formula : The formula which gives the simplest wholenumber ratio of the atoms of various…

Q: what makes thw difference between the isotopes of an element?

A: an elements having same atomic number but different masses are said to be isotopes

Q: C6H8O is the empirical formula for which of the following compounds? Hydrazine B Acetic acid…

A: Given, C6H8O7

Q: What is the % molecular mass of Iron in Fe2S3?

A: The percent mass of an element in a compound can be calculated by using the following formula:

Q: Main-group elements are those in the columns 3A to 8A of the Periodic Table. True or Flase?

A: Representative elements are known as main group elements of the periodic table.

Q: 4B.2 Name the following compounds. a) Br b) F Br e) f) an

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Q: In the structure given below, the total number of Hydrogen and carbon atoms are: O 5, 10 O 8,4 O 10,…

A: The given compound is : The number of carbon atoms and hydrogen atoms has to be determined.  For…

Q: How many of the following elements are nonmetals? F Са H Ве Ne 4 3 O 1 2

A: How many elements are  non- metals among the following : F, Ca , H , Be , Ne , O  = ?

Q: What is the empirical formula?

A:

Q: Give the number of atoms of the specified element in a for-mula unit of each of the following…

A: step 1) Formula unit mass is the sum of all the atomic masses present in the given compound. a)…

Q: The molar mass of nicotine C10H14NX is 162 g/mol. What is the value of x?

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Q: Write the molecular and structural formulas for the compoundsrepresented by the following models:

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Q: For the compound (Ca(OH)2) or calcium hydroxide, find the per cent composition of the element…

A: Given: The atomic weight of Ca=40 Molecular mass of calcium hydroxide= 1 x 40 + 2 x (1 + 16)=74…

Q: What do the peaks of the mass spec of C6H10 show?

A: The structure of the unknown molecules can be obtained by analyzing their spectroscopical results…

Q: What is the molecular weight of a sample of ferrous sulfide heptahydrate (FeS-7H20)? (Round all…

A: Molecular weight of a compound is the sum of its individual atoms' malar mass.

Q: Jsing the general formula for a 1.60), calculate the following: a. The number of hydrogen atoms E b.…

A: By using general formula of cyclo alkane to answer the following questions--

Q: a. What would be the formula of the compound formed by a reaction of chlorine with calcium (Ca)? b.…

A: We have reaction of chlorine and calcium , chlorine with strontium , we have to predict the formula…

Q: The correct name of the acid containing CIO3 is O hydrogen perchlorate O perchloric acid chlorous…

A: The acids are the compounds that give hydrogen ions in the solution.

Q: What is the mass to charge ratio of a propane ion (C3H3*) if one of the carbon atoms is a 13C and…

A: The mass to charge ratio of the propane ion (C3H8+) can be calculated by taking the sum of the mass…

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: An unknown anhydrous salt has the folowing mass composition 65.95% Ba and 34.05% Cl. Dtermine the…

A: Given information:Percent composition of Ba by mass = 65.95 %Percent composition of Cl by mass =…

Q: Which of the formulas must be molecular formulas? O C̟H¸N,0 C,H¸O, CH,0 O PO РО 10

A: Emperical formula is that way representing the chemical fourmla in which elements are present in…

Q: A sample of 0.593 mol of a metal M reacts completely with excess fluorine to form 46.2 g of MF2.…

A: Given : Moles of metal M = 0.593moles Mass of MF2 = 46.2g

Q: - Give the empirical formula for vitamin C (ascorbic acid), C,H%O6 .

A: What is empirical formula of Ascorbic acid ?

Q: Vitamin C is a covalent compound with the molecular formula C6H8O6. The recommended daily dietary…

A: Number of moles of a substance is equal to the mass of substance divided by molar mass. Write the…

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

A:

Q: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7. How many…

A: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7 Molar mass:…

Q: Determine the simplest formulas of the following compounds: (a) tetraethyl lead, the banned gasoline…

A: (a)  C - 29.71/12 = 2.476 H - 6.234/1 = 6.234 Pb - 64.07/207 = 0.3095 Devide all by least Number,…

Q: For the compound (Ca(OH)2) or calcium hydroxide, find the per cent composition of the element…

A: Given compound is Calcium hydroxide Ca(OH)2 Atomic weight of  Ca = 40 g/mol O = 16 g/mol H = 1g/mol…

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: Calculate the exact masses of the ions C5H8O1 and C6H12 1, both of which have a nominal mass of 84.…

A: The organic compounds can be identified by various characterisation techniques. For example, NMR,…

Q: 17. Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of…

A: 17. Given information,    45.90% carbon, 2.73% hydrogen, 26.23% oxygen 7.65% nitrogen, and 17.49%…

Q: 2. Explain how the chemical formulas H (aa and H.O for the same thing. are interchangeable notation…

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Q: 2-75. A sample of rutile, an ore of titanium consist- ing principally of TiO,(s), was found to be…

A: The question is based on the concept of quantitative analysis. we have to calculate how much…

Q: 6.Calculate the mass percent of H in CH5N.

A: 1- First we will determine the mass of compound :  Molar atomic mass of C, H and N are 12, 1 and 14…

Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, Cl = 35, Al =…

A: Molecular weight of AgCl = (108 + 35 ) = 143 g/mol  So, 143 g AgCl = 1 mol AgCl  1 g AgCl = 1/143 =…

Q: 1.00 g of hydrated potassium carbonate, K2CO3•nH2O, is heated to 250 °C to give 0.836 g anhydrous…

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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.