Mass Number of Number of Molecules or Number of Atoms Substance (g) Moles Formula Units or lons MgCl2 37.62 AGNO3 2.84 BH4CI 8.93 x 1025 K2S 7.69 x 1026 H2SO4 1.29 C6H14 11.84 HClo3 2.45 x 1026

Q: What is the mass (in grams) of 2.40 x 1024 CS2 (tear gas) molecules? [Note: Molar Masses (g/mole): C…

A: Atomic mass of C = 12 g mol-1 Atomic mass of S = 32.1 g mol-1 Number of CS2 molecules = 2.40 × 1024

Q: What is the mass in grams(a,b)/ name the ionic compound (c,d)/ name the ionic compound containing a…

A:

Q: what is the mass in grams of 4.31 x 10-3 mole (NH4)2HPO4

A: Mass of a substance can be determined with the number of moles and molar mass of the substance.

Q: Which of the following contains the smallest number of molecules? 1. 5.0 g N2 2. 5.0 g CO2 3. 5.0 g…

A: Firstly calculate the of number of mole of each compound from given formula: where as n = number of…

Q: Calculating Molar Masses of Compounds Just add together the molar masses of all the elements in the…

A:

Q: A mixture of gases has the following composition by mole: mol% | MW (g/mol) 02: 22 32 CO: 8 28 CO2:…

A: Let the total composition be of 100 moles So we have 22 moles of O2                     8 moles of…

Q: Complete the table:   Compound Mass Moles Number of molecules CO2 _____ 0.0105 _____ CO _____…

A: Recall molar mass of the given compounds Molar mass of CO2=44.01 g/molMolar mass of CO=28.01…

Q: 3) The molar mass of Cu (CO3)2.3H20is: 237.562 g/mol a) b) 183.53 g/mol 201.53 g/mol 160.88 g/mol c)…

A:

Q: 3.) Calculate the moles of KHP in flask #3. grams KHP Molar Mass of KHP (АЗ) 204.22 g/mol moles KHP…

A: Moles - One mole means 6.022 x 1023 number of that compound.  It is found that the molecular mass…

Q: Determine the number of sulfur present in each of the the following quantities. a. 3.01 x 10^23 S2O…

A: a) Given : Number of S2O molecules = 3.01 X 1023 molecules. Since each molecule of S2O contains 2 S…

Q: Calculate the percent composition by mass of Z in the following generic compound: X(YZ3)2   Molar…

A:

Q: What is the number of formula units in a 1.65 mol sample of FeCl3? ___________________ formula units

A: 1 mol of FeCl3 contains 6.022 ×1023 formula units.

Q: How many H atoms are present in 8.3 g of H 2 ? O a. 2.5 x 1024 atoms O b.6.02 x 1023 atoms O c. 10.0…

A: Given Mass = 8.3 g

Q: Calculate the mass (in g) of each sample.  3.2x10^22 H2O molecules  5.0x10^25 O3 molecules…

A: The values are given as follows:

Q: What mass, in grams, of NO2 is needed to form 140.4 g of NO? Assume excess water.    3NO2(g) +…

A: The reaction given is  3 NO2(g) + H2O(l)  →  2 HNO3(aq) + NO(g) Given : mass of NO forming = 140.4 g…

Q: 25.0 g sample of Ca(NO3)2.

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 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: How many atoms of gallium are present in a sample that contains 75.1 grams of gallium?The molar mass…

A: Number of atoms can be determined by multiplying the number of moles with Avogadro number.  For that…

Q: Table 1. The relationship between mass, mole and number of particles Formula of Molar mass Mass (g)…

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Q: Find out the molar mass of C7H7NO. O 121.14 g/mol O 112.14 g/mol O 211.14 g/mol O 111.14 g/mol

A: The given compound is C7H7NO.

Q: The mass of Cu(IO3)2 that can be formed from 0.6501 g of CuSO4 · 5H2O is _____ g. Molecular mass:…

A: Stoichiometry would be used to calculate mass .

Q: Calculate each of the following quantities. (a) mass in kilograms of 4.8  1020 molecules of NO2…

A:

Q: Convert 5.17 x 10-22 grams of X5Z2 into molecules/formula units of the same compound. (Assume that…

A: Mass of X5Z2 =5.17 x 10-22 g Molar mass of X =38.46 g/mol Molar mass of Z= 6.17  g/mol Molar mass of…

Q: Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric…

A: Given: Mass of Aluminum = 25 g

Q: The molecular formula for paracetamol is C3H9NO2. How many moles of C atoms are present in a 10.0 g…

A:

Q: Formula Molar mass of ion   Number of ions   Mass of ion in one mole of barium iodide Cation Ba2+…

A: We have to just collect data and then add them up

Q: Calculate the number of moles in the following quantities: a.)3.12 g NaHCO3 b.)570 mg ZnCl2 c.)8.9…

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Q: Compound X has a molar mass of 153.05·gmol−1 and the following composition: element mass % carbon…

A: Given Compound X has a molar mass of 153.05·gmol−1   element mass % carbon 47.09% hydrogen 6.59%…

Q: What mass of XeCl4 contains 11.245 x 1022 molecules of XECI4? Molecular mass (g/mol) XeCl4: 273.09…

A: We determined mass of XeCl4 by using avogadro's number. NA = 6.022×1023 molecules per mole .

Q: Calculate the molar mass of ammonium phosphate, (NH4)3PO4. 149.0 g/mol 113.0 g/mol 242.0 g/mol 121.0…

A: To calculate the formula mass of any compound, we can multiply the relative atomic masses (or atomic…

Q: Complete the table below for calculating the molar mass of the compound silicon dioxide. Mass in one…

A: We have to calculate the molar mass of silicon dioxide.

Q: Coke is an impure form of carbon that is often used in the industrial production of metals from…

A: Given: percentage of carbon by mass = 95% Mass of copper(II) oxide = 1.0 ton To find: The mass of…

Q: Given 6Li + N2 0 2 LI3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: As per our company guidelines we are supposed to answer only one question. kindly repost other…

Q: What is the molar mass of calcnum chloride hexahydrate! a 75.53 g'mol, b.111.0 gmol c 1170 gmol d.…

A: The answer to the following Question is:

Q: . Aluminum metal is produced by passing an electric current through a solution of aluminum oxide…

A:

Q: Lithium reacts with thionyl chloride to form lithium chloride, sulfur, and sulfur dioxide. 4 Li + 2…

A: Given  mass of SOCl2   = 5.5 gram  Molar mass of SOCl2  = 118.97 gram/ mole  Molar mass of SO2     =…

Q: The molar mass of (NH4)2C2O4 is [Molar Masses (g/mole): N = 1 4; H = 1; C = 12; O = 16] Oa. а. 124…

A: Given compound, (NH4)2C2O4l

Q: Calculate the percent composition of each element in C10H8 (molar mass = 128.171 amu) %3D O %C =…

A: Since you have posted two question, we will solve first one for you. To get the remaining question…

Q: Urea, CO(NH2)2 is used as a fertilizer to provide nitrogen for the soil. How many moles of urea are…

A: Correct choices (B) , (C) & (E)

Q: A mole of the water is: 12.0000 g H2O one H20 molecule O 6.02 x 1023 g H2O 6.02 × 1023 H20 molecules…

A:

Q: The molar mass of a sulfur molecule (Sg) is a 32.05 g/mol b 140.0 g/mol c 256.5 g/mol d None of the…

A:

Q: Find the moles of NH4NO3 in this sample  molecular weight- 80.05 g/mol mass- 2.0012 g

A:

Q: What amount (moles) is represented by each of these samples? a. 20.8 mg caffeine, C3H10 N4O2 Amount…

A:

Q: What is the molar mass of nitroglycerin, C3H5(NO3)3?  227 g/mol  179 g/mol  199 g/mol 185 g/mol

A: Molar mass is calculated by the addition of standard atomic masses of the constituent atoms.

Q: Part 1 - count the moles, molecules and atoms # of moles # of atoms in each Total # of atoms…

A:

Q: Compound Mass Moles Number of molecules CO2CO2 _____ 0.0105 _____ COCO _____ 0.0196 _____ BrIBrI…

A: Number of moles = Mass of the compoundMolar massMass of the C2O4=?Number of moles = 0.0105…

Q: What is the molar mass of Mg3(PO4)2 ? O 150.3 g/mole O 71.28 g/mole O 214.3 g/mole MacBook A

A: The answer is given as follows

Q: (5) Complete the following table ( balance the reaction ) NaclO4 Nacl + 202 NaclO4 molar mass…

A: in Balanced chemical equation number of atoms of each species are equal on both reactent and…

Q: Which quantity contains the most moles? a. 10 g SO2 b. 10 g CO2 c. 10 g SiO2 d. 10 g CH4

A: Generally, the no of moles presents in given amount is obtained by dividing the given compound mass…

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.