If you are given 7.61 moles of LiF, how many grams do you have of this imaginary compound? O 211 g O 197 g O 631 g O 303 g

Q: If the molar mass of butanoic acid is 88.1 g/mol,what is its molecular formula?A. C 3 H 4 O 3B. C 2…

A: Molar mass of a compound is the sum of mass of the each element present in it. For example: C6H6 The…

Q: Calculate the number of oxygen atoms in 8.77 g of Cu3(PO4)2.

A: Answer:

Q: What is the value of n when the empirical formula is C3H5 and the molecular mass is 205.4 g/mol? O…

A:

Q: A mole of a compound composed of nitrogen and oxygen (N xO y) has a molecular weight of 92.0 g/mol.…

A: Given,  Empirical formula = NxOy  Molecular weight of NxOy = 92 g/mol

Q: Starting with the following equation, KOH(s) + CO2(g) → K¿CO3(s) + H¿O(1) calculate the mass in…

A:

Q: What is the mass of 0.0250 mol of P205 ? O 3.55 g O 5676 g O 0.0250 g 35.5 g

A:

Q: What is the mass in grams of 1.59 moles of aluminum oxide Al,O ? O 102 g O 162 g 64.1 g

A: Consider the given information is as follows; Moles of Al2O3 = 1.59 mol       Mass of Al2O3 = ?

Q: Calculate the molar mass of Iron(III) chloride hexahydrate: FeCl3• 6H20. O 162.29 g/mol O 180.29…

A: Given  Molar mass of EDTA disodium salt dihydrate = 372.24 g/mole Molar Mass of FeCl3.6H2O Molar…

Q: What is the mass of a 6.761-mol sample of sodium hydroxide? O 40.00 g O 270.4 g O 162.3 g O 5.916 g…

A: In this question we have to use mole concept. According to which  one mole is equals to: 1 mol of…

Q: How many atoms of hydrogen are in 30 g of NH4NO3 (Molar mass: 80.04 g/mol) ? O A. 2.77 x 1022 O B.…

A: MOLE: The amount of substance present in whole of a compound is known as one mole and it is…

Q: What is the mass of 0.75 moles of (NH4)3PO4? O 111.75 g O 121.75 g O 131.75 g 101.75 g

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

Q: What is the molar mass of 27.8 mg of a compound that is made up of 3.80 x 1020 molecules? 44.1 g/mol…

A:

Q: Calculate the moles of O atoms in 0.184 g of Mg(NO3)2. mol O atoms

A:

Q: What is the molar mass of H2SO4? (Molar mass of H = 1.0079 g/mol; S = 32.065 g/mol; O = 15.999…

A: 6.022×1023 = 1 mole = Avogadro Number Molar mass :-  The mass of one mole of atoms or molecules is…

Q: Find out the molar mass of C,H;NO. O 121.14 g/mol O 112.14 g/mol O 211.14 g/mol O 111.14 g/mol

A:

Q: Which of the following has the smallest mass? O 15.0 mol of F2 0.250 kg of Brz 425. g of Cl2 O 1.75…

A:

Q: How many g of Cu will combine with 2.48 g of S to form CuS? O 9.83 g O 14.7 g O 4.92 g O 2.46 g

A:

Q: The mass of 4.75 moles of H2SO4 is O 314 g O 456 g O 466 g O 564 g

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 8. Acetic acid, the acid present in vinegar, has the empirical formula of CH20. If the Molar mass of…

A:

Q: What is the molar mass of Copper (1I) Nitrate, Cu(NO3)2? O 93.56 g/mol O 172.56 g/mol O 125.56 g/mol…

A: The question is about to find the Molar Mass of Copper (II) Nitrate -

Q: How many moles are there in 101 g of Hexane (CH14)? O 0.85 O 0.50 O 2.02 O 1.17

A: Given, 101g Hexane (C6H14)

Q: Calculate the mass, in grams, of each of the following. a) 6.93 mol BrF3 b) 8.30 mol Cr2O3 c)…

A: Given  (a)   Number of mole of BrF3  = 6.93 mole             Mass  = ? =  (b) Number of mole of…

Q: Starting with the following equation, Fe₂O₃(s) + C(s) → Fe(l) + CO₂(g) calculate the mass in grams…

A: Given  Reaction  Fe2O3(s)  + C(s)  →  Fe(l)  + CO2(g) Mass of  Fe = 395 gram  Mass of Fe2O3 = ?

Q: How many Cl atoms are there in 50 g of AIC13 (Molar mass: 133.34 g/mol) ? OA 4.64 x 1026 O B. 5.00 x…

A: Given, Mass of AlCl3 = 50g Molar mass of AlCl3 = 133.34 g/mol Moles of AlCl3 = 50 g133.34 g/mol =…

Q: If 3.45 moles of potassium chloride are produced in the reaction, how many moles of oxygen are also…

A: Balanced Reaction                                2KClO3 ---------> 2KCl + 3O2             2…

Q: The recommended daily intake of salt, NaCl, is about 1 teaspoon = 2.3 g salt.  If the molar mass of…

A: Given  Mass of NaCl  =  2.3 gram  Molar mass of NaCl  = 58.44 gram/mole Number of atom of NaCl = ?

Q: A pure sample of an unknown molecule has a mass of 35.51 g and contains 0.2000 moles. What is the…

A: 177.55 g/mol

Q: Calculate the mass, in grams, of 642 atoms of cesium, Cs. (molar mass of Cs is 132.91 g)

A: Given: The number of atoms of Cs = 642 atoms The molar mass of Cs = 132.91 g

Q: How many moles of P 4 O 10 in 1.11 grams of P 4 O 10 ? [The Molar Mass of P 4 O 10 283.886 g/mol.]

A:

Q: Which is the greatest mass of SO2 that can be produced from 15 mol of Cu2S? 480g O 961g O 1920g O…

A: Given Reaction,2 C42 S + 3O2 → 2 C42O + 2 SO2Moles of C42S = 15 molMass of SO2 produced = ?

Q: What is the mass of one mole of Al2(SO4)3? * O 75.04 g 342.14 g O 75.04 mol 342.14 mol

A:

Q: How many silicon atoms are present in a sample of 32.8 g of silicon? The molar mass of silicon is…

A: Given : Mass of silicon i.e Si = 32.8 g And molar mass of Si = 28.09 g/mol.

Q: Q8

A: Sulphuric acid formula H2SO4 . sulphuric acid contains  Sulphur  hydrogen and oxygen  element.

Q: How many molecules of epsom salt, MgSO4, make up 4.6 g of MgSO4?  The molar mass of MgSO4 is 120.37…

A:

Q: 1. Calculate the mass of aluminum oxide produced when 4.75 moles of aluminum burn in oxygen. 4 Al +…

A:

Q: What is the mass of 0.0250 mol of P205 ? O 0.0250 g O 35.5 g 5676 g O 3.55 g

A: Given, Moles of P2O5 = 0.0250 mol Molar mass of P2O5 is 141.944 g/mol.

Q: Which one of the following is not equivalent to one mol of the substance? O 65.39 g Zn O 14.01 g N O…

A: Given: To identify which option is not equivalent to 1 mole.

Q: A molecular cluster is formed from iron atoms and carbon monoxide (CO) molecules. If the molar mass…

A: The chemical formula of a compound in which elements are present in the simplest whole number molar…

Q: What is the molar mass of potassium nitrate (KNO3)? O 63.0 g/mol O 25.6 g/mol O 101.1 g/mol

A:

Q: A compound has a formula of P4O6. What is the weight of one mole of this compound in grams? How…

A:

Q: What is the total number of atoms contained in 2.00 moles of iron? O 118 O 6.02 x 1023 O 1.2 x 1024

A:

Q: 9. Calculate the number of moles in 3.52 g of C,H&O6

A: Mass of C6H8O6 = 3.52 g Molar mass of C6H8O6 = 176.12 g/mol

Q: How many O atoms are present and what is their combined mass per mole of Ca3(PO4)2? Mass Ca = 120.24…

A:

Q: Which one of the following is not equivalent to one mol of the substance? O 65.39 g Zn O 55.85 g Fe…

A:

Q: How many moles of NH3 are there in 77.5 g of NH3? O 0.220 mol O 0.00131 mol O 14.0 mol O 4.55 mol

A: Given, Mass of NH3 = 77.5 g Moles of NH3 are there in 77.5 g of NH3 = ? Note: Molar mass of NH3 =…

Q: What is the molecular formula of a compound that contains 66% Ca and 34% P and has a molar mass of…

A: The percent of Ca = 66 % The percent of the P = 34 % The molar mass of the compound is = 182.18…

Q: How many grams of NO2 are there in 3.00 moles of NO2 ? O 90.0 g O 46.0 g O 138 g O 30.0 g

A: The answer is given as follows

Q: How many moles of S are in one mole of Al2(SO4)3? O 4 mol S O 1 mol S O 3 mol S O 2 mol S

A: H2 -----> 2H  1 mole of hydrogen gas contains 2 mole of atomic hydrogen  NH3 ------> N + 3H  1…

Q: How many P atoms are present and what is their combined mass per mole of Ca3(PO4)2? Mass Ca = 120.24…

A: Given: Mass of Ca= 120.24 g Standard data: The molar mass of Ca3(PO4)2 =310.18 g/mol The molar…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A:

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.