How many atoms of nitrogen are present in 3.19 moles of dinitrogen tetroxide?  nitrogen atoms

Q: How many moles are there in 6.55 x 1025 molecules of H2O?

A: Given: The number of molecules of water=6.55 x 1025  1 mol of water = 6.022 x 1023 molecules…

Q: How many H20 molecules are there in 3 moles of H20 sample? O 6.02 x 1023 molecules O 2x 6.02 x 1023…

A: Given: Moles of water, H2O = 3 mol.

Q: How many moles of O2- ions are there in 0.450 moles of aluminum oxide, Al203? mol O2- What is the…

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Q: What is the mass in grams of each of the following? 1.   1.67 x 1015 atoms of Mn 2.    6.45 x 1023…

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Q: How many molecules of carbon tetrachloride are present in 2.04 moles of this compound?  _______…

A: Given: 1. Moles of carbon tetrachloride is 2.04 moles  2. Molecules of carbon tetrachloride is…

Q: How many molecules of oxygen are in 150 g of oxygen? 05.6 x 1024 O28х 1024 О5.6 x 1022 O1.4 x 1024…

A: Given: Mass of Oxygen= 150g To Calculate: Molecules of  Oxygen

Q: How many moles of oxygen atoms are there in (6.58x10^2) grams of P4O6

A: Molar mass of P4O6= 219.88g/molGiven mass of P4O6 = 6.58×102 gNumber of moles of P4O6= given…

Q: How many molecules are in 0.200 g CO2? C= 12.01 g/mole and O = 16.00 g/mole

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Q: What is the percentage composition of each element in ammonia, NH3?  82.35% N; 17.65% H  80.55% N;…

A: Ammonia(NH3) molecule contains one  nitrogen and three hydrogen atoms. We have to determine the…

Q: 1.    How many grams are in 2.3 x 1022  molecules of Ca3?  Ca= 40.08   Molar Mass:       = _________

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Q: How many CO2 molecules are there in 12.0 moles CO2?   How many moles NH3 contains 1.5 x 10 23 NH3…

A: a) Given : Number of moles of CO2 = 12.0 mol.

Q: Nitrogen dioxide is a component of urban smog that forms from gases in car exhaust. How many…

A: Detail mathematical calculation is shown below

Q: How many molecules of sulfur tetrafluoride are present in 3.45 moles of this compound?  molecules…

A: Moles of sulphur tetrafluoride=3.45mol

Q: How many moles of nitrogen trifluoride are present in 7.02

A: 1 mol = Avogadro number no.of entities  Symbol NA  NA = 6.02 × 1023   No. of moles = Given no.of…

Q: How many moles are in 5.78 x 1023 molecules CO,?

A: Given :- number of molecules of CO2 = 5.78 × 1023 molecules  To calculate : number of moles of CO2…

Q: Calculate the molar masses of the following molecules. Include the units. Use 4 significant figures.…

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Q: How many molecules are there in 0.500 moles of sugar, CgH1206? 90 molecules G 3.01 x 10 23 molecules…

A: Given : Moles of sugar = 0.500 mol.

Q: How many GRAMS of phosphorus are present in 2.87 moles of tetraphosphorus decaoxide ?

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Q: How many moles are in 15 grams of lithium? How many grams are in 2.4 moles of sulfur? How many moles…

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: What is the molar mass for each of the following compounds? 1. Na,CO; Fe(CIO;); How many molecules…

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Q: Given a sample containing 6.02 x 10^25 molecules of nitrobenzene (C_6H_5NO_2). a) How many moles of…

A: Since, 1 mole = 6.02×1023atoms/molecules/ions Molar mass represents the mass of one mole of the…

Q: Avogadro’s number is defined as   the number of atoms in exactly 12 g of carbon-12. the number of…

A: Which one of the following is correct

Q: 3. How many grams of S8 are required to produce 3.9 x 1024 molecules of SO2? S8 O2 SO2

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

Q: 2 H₂O + O2 → 2 H₂O₂ O 0.81 mol H₂O2 O 81 g H₂0₂ O 13 mol H₂O₂ O 6.5 mol H₂O₂

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Q: How many moles of hydrogen peroxide  (H2O2) are in  750 grams of this substance?  Choose the answer…

A: No. of moles = weight in gm / Molar mass No. of moles = 750/34.014 No. of moles = 22.049

Q: How many molecules are in 3.4 g of H2?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 molecules

Q: How many helium (He) atoms are there in 3.75 moles of helium?   3.75 x 1023 atoms 3.99 x 1025 atoms…

A: You have given - Moles of He = 3.75 mol

Q: The mass, in grams, of 1.5 x 10-2 mol of CdS. The number of moles of hydrogen in 86.6 grams of…

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Q: How many moles are in 2.3 grams of phosphorus?

A: Given:  Mass of phosphorus=2.3 g To calculate: Moles of phosphorous=?

Q: How many moles are in 6.02 x 10^23 atoms of CO2?

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Q: For each of the following gemstones, determine the mass of compound present in the given moles of…

A: Given  1) Formula = Be3Al2(SiO3)6     Number of mole = 0.0170 mole        mass    = ? 2) Formula   =…

Q: How many oxygen atoms are there in 52.06 g of CO2?

A: Carbon dioxide molecular formula is CO2. One molecule of CO2 has two oxygen atoms. Molar mass of CO2…

Q: Air has an approximate composition by mass of 76.7% N 2 and 23.2% O 2 . How many Ib-moles of air are…

A: Given the composition of air is 76.7% N2 and 23.2% O2.  Fraction of N2 = 76.7/100 = 0.767 Fraction…

Q: What is the mass, in grams, of 9.52×1024 molecules of methanol (CH3OH)?mass:   g

A:

Q: Gibberellic acid, C19H22O6, is used to promote plant growth, particularly in seedlings. How many…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: How many moles of carbon tetrachloride are present in 3.17 x 10^22 molecules of this compound?…

A: Given,  The moles of carbon tetrachloride are present in 3.17 x 10^22 molecules of this compound?…

Q: How many moles of boron trifluoride are present in 3.34 x 10^22  molecules of this compound?  moles…

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Q: How many moles of hydrogen atoms are there in (5.20x10^2) grams of phosphoric acid

A: Moles of H-atom = ? Phosphoric acid = H3PO4 Mass = 5.20x102 grams Molar mass of H3PO4 = 97.994 g/mol…

Q: When this equation is balanced with the smallest set of whole numbers, what is the coefficient for…

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Q: 4. Salicylic acid is an organic compound composed of 61 % C, 7% H, and the rest is oxygen. If 0.218…

A: Given, In salicylic acid; Percent composition of C=61% Percent composition of H=7% Percent…

Q: What is the mass (in grams) of 5.72 x 1023 molecules of CS2? O a. 157 g CS2 b. 207 g CS2 O c. 187 g…

A: Ans)         CS2  molecular weight = 76g  One mole of CS2 contains 6.023×1023            molecules

Q: 0. How many moles are present in 450 grams of sodium phosphide, Na3P? O 44, 995 moles 450 moles O…

A: Given in the question = Compound = Na3P Given mass of compound = 450 gms Molar mass of compound =…

Q: How many grams are in 2.23 x 1024 molecules of NiCl2?

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Q: How many molecules are there in 42.0 g of nitrogen gas, N2?

A: We know that : 1 mole of any substance has 6.023 x 1023 molecules Given that : Mass of N2 = 42.0 g…

Q: How many moles are in 8.9 x 10^26 molecules of C6H12O6? Express in decimal

A: 1 mole  of any atom / molecule consists avogadro number. Avogadra number NA = 6.022× 10 23

Q: How many atoms are present in 123 g of magnesium cyanide? a. 9.7 x 1023 b. 2.91x 1024 c. 2.83 x 1028…

A: Formula of magnesium cyanide is Mg(CN)2

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

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Q: Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 8.30 molesmoles of…

A: Magnesium Perchlorate formula = [Mg(ClO4)2] Molecular Mass of Magnesium Perchlorate  = 223.21…

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.