What is the percent mass of nitrogen in Ca3N2? O 81.10% O 18.90% O 25.3% O 9.45%

Q: What is the mass percent N in C2H8N2? (a) 23.3% N(b) 16.6% N(c) 215% N(d) 46.6% N

A: Mass percent or percentage by weight is one of the concentration terms that indicates the mass of…

Q: which contains the larger numbers of molecules 25.0 g HCI or 85.0 g C6H12O6

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Q: How much UF6 can be produced from 740.5 g of UO2? * 104.1 g UF6

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Q: Calculate the total number of N atoms in 23.8 g N2O5. O 2.65 x 1023 total N atoms O 9.31 x1023 total…

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Q: Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 9.00 molesmoles of aluminum…

A: Since in each molecule of Al2(SO4)3 we have 1) Atoms of Al = 2 2) Atoms of S = 3  3) Atoms of O = 4…

Q: What is the percent mass of carbon in C2H6

A: Mass percent or weight percent of an element is the total mass of the element by the mass of the…

Q: What is the mole ratio of Mg to MgCh? Mg(s) + HC|(aq) -› MgCh(aq) + Ha(g)]

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Q: Calculate the number of moles of propane molecules, C3H8 C 3 H 8 , present in a sample containing…

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Q: Calculate the mass, in grams, for each of the following. 1.70 moles of Na 3.60 moles of Ca 0.110…

A: Number of moles is defined as ratio of mass of substance to the molar mass of it. Number of…

Q: Determine the number of atoms of O in 43.6 moles of Al₂(CO₃)₃.

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Q: What is the molar mass of Al2(Cr2O7)3?    809.8554 g/mol B. 269.9518 g/mol C. 401.9448 g/mol…

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Q: 1. Convert 25.2 g into mg. (1000 mg = 1 g) 2. Convert 3 x 105 g into kg. (1000 g = 1 kg) 3. What is…

A: Since you have posted multiple questions, we are entitled to answer the first three only.

Q: One mole of oxygen molecule (O2) contains how many atoms of oxygen? O a. 6.022 x 1023 O b. 6.022 x…

A: Applying concept of moles and avogadro number.

Q: Calculate the number of Na atoms in 2.56 g of NaNO3 (Avogadro’s number NA = 6.022 x 1023))

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Q: The number of ammonia (NH3) molecules present in 4.85 grams of NH3is: a.1.02 x 10^25 c. 1.72 x…

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

Q: How many fluorine atoms are present in 6.25 g of C2F4?

A: Moles of C2F4 is calculated as follows,

Q: What is the percent by mass of carbon in acetone, C3H,O? А. 1.60 % В. 30.0 % С. 62.0 % D. 20.7 % Е.…

A: Standard data: The molar mass of carbon atom = 12.01 g/mol The molar mass of oxygen atom = 15.999…

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

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Q: Find out the molar mass of Ca3(PO4)3. Select one: O 504 g/mole O 450 g/mole o 405g/mole O 430 g/mole

A: Atomic mass of calcium is 40 g/mole Atomic mass of oxygen is 16 g/mole Atomic mass of phosphorus is…

Q: What is the percent mass of carbon in H2C2O4? O 26.68% O 71.08% O 2.24% O 13.3%

A: The molecular formula of the given compound is = H2C2O4 The mass percent of carbon is =?

Q: present in the beaker? (hint: 1 mole Cl: 1 mole AgCl, 1 mole Cl: 1 mole NaCl, 1 mole Cl: 1 mole KCI)…

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Q: Determine the percent composition of SO42- in Al2(SO4)3

A: We know,  % of mass  = (mass of component/total mass)*100

Q: What percentage of NH4NO3 is nitrogen?

A: Mass percent of element  is the mass of element present in 100g of the compound. Mass percent of…

Q: Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 3.00 molesmoles of aluminum…

A: Given, 3 mol of Al2(SO4)3

Q: What is the percent composition of oxygen in FeSO47 H20? O 63.3% O 23.0% O 40.3% O 20.1% O 28.8%

A: We have given the compound FeSO4.7H2O

Q: How many grams of O2 will be consumed during the formation of 13.67 grams of Fe2O3? Report your…

A: Mass of Fe2O3 = 13.67 g

Q: Calculate the mass of 4.50 moles of CazPO4 . 968 g 87.1 g O 215 g O 0.0209 g

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Q: Determine the number of atoms of O in 7.23 moles of Na₂SO₄.

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Q: Calculate the percent composition of elements in the following compounds as indicated.…

A: “Hey, since there are multiple sub part questions posted, we will answer first three questions. If…

Q: 26. What is the percent by mass of oxygen in Ca(OH),? А. 40.0 % В. 33.3 % С. 36.3 % D. 43.2 % Е.…

A: Atomic mass of Ca = 40 g mol-1 Atomic mass of O = 16 g mol-1 Atomic mass of H = 1 g mol-1

Q: Determine the number of molecules in 13.2 grams of CCl₄.

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Q: Combustion of a 0.66 g sample of a compound containing only carbon, hydrogen, and oxygen produced…

A: Weight of the sample = 0.66 g Weight of CO2 = 1.452 g  Weight of H2O = 0.792 g

Q: Determine the number of atoms of O in 7.23 moles of Na₂SO₄.

A: One mole of Na₂SO₄ contains four moles of Oxygen atoms. And we also know that one mole of any…

Q: Determine the number of moles (of molecules or formula units) in each sample.a. 25.5 g NO2 b. 1.25…

A: Given samples,    a. 25.5 g NO2    b. 1.25 kg CO2    c. 38.2 g KNO3    d. 155.2 kg Na2SO4

Q: If you have 534 grams of AlC13 and an infinite amount of NAOH, how many grams of Nacl would be…

A: Given data: Grams of AlCl3=534 g. Chemical reaction: AlCl3 + 3 NaOH → Al(OH)3 + 3 NaCl. To…

Q: How many hydrogen atoms are there in the following molecules? 1 molecule of C6H12O6 2 molecules of…

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: Calculate the percent by mass of nitrogen in ammonium carbonate,(NH)2CO3 A 27.8% в) 33.3 % c) 17.1%…

A: The mass percentage is determined as the summation of total mass of the element upon molar mass of…

Q: How many grams of nitrogen are present in a 0.10-g sample of caffeine, the stimulant in coffee and…

A:

Q: Determine the number of atoms of C in 24.8 grams of CH1206- atoms 1 3 4 C 7 9. +/- x 100 2. 5

A: Given : Mass of carbon = 24.8 g Compound = C6H12O6 To Find : Number of atoms Solution : Number of…

Q: What is the percent mass of nitrogen in CagN2? O 25.3% O 9.45% O 81.10% O 18.90%

A: Given  Molecule = Ca3N2  Percentage ge of N in Ca3N2 = To be determined

Q: Calculate the Percent Composition by mass of the given compound: KNaC4H4O6∙4H2O Percent mass of K…

A: Percentage mass of any element in a given compound can be calculated as (mass of the element divided…

Q: How many grams of potassium are present in 14.0 g of K2Cr2O7? O3.72 g 78.2 g O 1.86 g 07.0 g 0.716 g

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Q: How many chlorine atoms are in 12.2 g of CCl4? (C: 12 g, Cl: 35.5 g)

A: Given : Mass of carbon tetrachloride (CCl4)=12.2 g The molar mass of carbon tetrachloride=12 x1 +…

Q: What is the mass of 4.9 moles of N2O5?   a.   52.92g   b.   5.292g   c.   0.5292g…

A: We have given the moles of N2O5 = 4.9 mole

Q: What is the percent mass of carbon in H2C,04? 26.68% O 71.08% O 2.24% O 13.3%

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Q: What is the percent composition of nitrogen in Mg3N2? 72.24% 24.08% O 52.06% 24.31% none of these

A: Percent composition is calculated from a molecular formula by dividing the mass of a single element…

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 grams make up 12.5 moles of NaBr? O 5.70 g NaBr O 22.5 g NAB. O 103 g NaBr O 1290 g NaBr O…

A: Given , number of moles (n) = 12.5 mole  Molecular mass of NaBr = 102.894 g/mol  We have to…

Q: A 10 gram sample of which substance contains the greatest amount of hydrogen atoms A. 10gCH4…

A: Molar mass of substance can be defined as the sum of  atomic masses of all atoms present in that…

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.