How many oxygen atoms are there in 2.10 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) %3D O a. 4.82 X 1022 O b. 6.02 X 1021 O c. 1.61 X 1022 O d. 8.36 X 1019 O e. 2.01 X 1021

Q: 33. How many hydrogen atoms are in 4 molecules of isopropyl alcohol, C;H-0? А. 2.4 x 1023 atoms of H…

A: Given, 4 molecules of isopropyl alcohol, C3H7O   Required,                Number of hydrogen atoms…

Q: Which one among the following statements is correct? A 12.01 g of C contains 6.022 x 10 23 atoms…

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

Q: When 6.00 g of sulfur are combined with 6.00 g of oxygen, 12.00 g of sulfur dioxide (SO2) are…

A: Molecular mass of sulfur = 32 g /mol, means 32 g in 1 mol.Molecular mass of O2 = 32 g / mol, means…

Q: D. Particles 5. People usually use hydrogen peroxide (Agua oxigenada) H202 to clean their wounds. If…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: What is the average mass, In grams, of one Zn atom? Multiple Choice O 394 x 10259 O 65.39 amu O 1661…

A: Calculation of mass of zinc:

Q: How many oxygen atoms are there in 0.825 g of AI(NO2)3 (MW Al(NO2)3 = 165.00 amu) а. 3.01 X 1021 b.…

A: Given: Mass of Al(NO2)3 = 0.825 g Molar mass of Al(NO2)3 = 165.00 amu.

Q: If the m. Wt. of BaSO4 = 233.42 g/mol %3D and m. Wt. of Na(SO4)2= 140.02 g/mol and wt of…

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Q: a. Oxalic acid is a crystalline solid with the molecular formula H2C2O4. A sample of pure oxalic…

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Q: What is the element the has a mass of 2.5g when 1.25 moles are taken of it? H2 N2 Cl2 O2 Br2

A: Given Mass of element = 2.5 g moles = 1.25 moles

Q: 2. Which of the following pairs contai: equal number of atoms? (a) 22.4 L (STP) of nitrous oxide ane…

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Q: Calculate the number of atoms in each of the following masses: a. 54.0 g of aluminum ans: 1.21 1024…

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Q: 2Br + 2K* → Br₂ + 2K MM of K-39.10 g/mol MM of Br₂159.8 g/mol R=8.314 J/mol-K F-96,485 J/mol-V 4.77…

A: In electrolytic cell, oxidation and reduction reaction takes place simultaneously. The oxidation…

Q: 8.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Assuming the molecular formula of compound is CaHbOc  And since moles = mass / molar mass Hence…

Q: mat Tools Add-ons Help Last edit was 8 minutes ago ormal text Trebuchet . IUA 12 %3D 5) How many…

A: GivenFor question 5Mass of N = 10.5 gFor question 6Number of atom of nickel = 6.6 x 1017

Q: 2. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: a. Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

Q: H.W.: 1. Calculate the number of grams in one mole of CaSO,7H2O? (Atomic weight Ca-40 S-32 O-16…

A: Given Number of mole = 1 mole  Molar mass of CaSO4.7H2O  = 262 gm/mole  mass = ?

Q: A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this?

A: Given : Mass of water = 3.79 Kg  And molar mass of water = 18.02 g/mol

Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 O 475 g O…

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Q: How many grams of magnesium are required to produce 4.380 kg of Si? (At mass: Mg324.31: Si-28.09)…

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Q: Heading 1 + BIUA Go D Russo One 30 Element: Ytterbium Number of Number of Neutrons Name of isotope…

A: Fill in the blanks and calculate average atomic mass of given isotope ?

Q: How many oxygen atoms are there in a formula unit of UO 2(C 2H 3O 2) 2 • NH 4C 2H 3O 2 • 5H 2O?   a.…

A: one molecule of O2 contains 2 atoms of oxygen

Q: 2.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that the mass of CO2 and H2O formed by the burning of 2.50 g of compound X is 3.44 g and 0.94…

Q: How many oxygen atoms are there in 3.15 g of Al2(S208)3 (MW AI2(S208)3 = 330.34 amu) O a. 3.01 X…

A: Given that : Molecular weight of Al2(S2O8)3 = 630.34 amu or g/mol Mass of Al2(S2O8)3 = 3.15 g Number…

Q: 3.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: Strontium nitrate consist of 72.8 mmol. How many pg of substance is this? The answer must be 1.54 x…

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Q: How many grams of sulfur make up 3.01 mol of sulfur? [Use atomic mass: S, 32.06 amu]

A: The correct answer is given below

Q: 8.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Moles of CO2 and H2O are calculated as shown below,

Q: 18. A compound with molecular mass of 74.1 g/mol is found tO contain 64.8% carbon, 13.5% hydrogen,…

A:

Q: 1.75 x 1025 selenium atoms contains ____ moles of selenium. Report your answer to 3 s.f. (hint: this…

A:

Q: A cable making company produces a metal wire, with a diameter of 1.00 mm. What will be the length of…

A: Introduction: Given data: • The diameter of metal wire is 1 mm •The number of moles of metal is 1.00…

Q: Determine the number of atoms of O in 27.9 moles of Na₂Cr₂O₇

A: Given the number of moles of Na2Cr2O7 =27.9 moleswe are asked to calculate the number of atoms of O…

Q: How many oxygen atoms are there in 3.15 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) O a. 2.41 X…

A: Given that,  Amount of Al2(S2O8)3 = 3.15 g Molar mass of Al2(S2O8)3 = 630.34 amu Moles of Al2(S2O8)3…

Q: The molar mass of an element is numerically equivalent to what? b. 1 mole a. 1 amu c. its atomic…

A: Molar mass is the sum of mass of all atoms and the unit of the molar mass is grams or g

Q: You are making an alloy of tantalum (Ta) with an atomic weight of 180.94788 g/mole and magnesium…

A: Molar mass of tantalum = 180.94788 g/mole  Molar mass of magnesium = 24.3050 g/mole  Given mass of…

Q: 5) Find the mass of 0.02 moles of K,Cr,O,. 7'

A:

Q: what Mass or NaN3 L6S mol) is needed to produce (28 9 mol-) ? 1.00 g 2 Na Ng 7Z Na+ 3 N2 a) 1.Ss 9…

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Q: If a different nail is coated with a 0.053 cm thick layer of zinc and the surface area of the nail…

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Q: 2.708 gram sample of an organic compound containing C, H and O is analyzed d 6.157 grams of CO2 and…

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Q: Directions: calculate the masses below including correct number of significant figures and units.…

A: Hg is the atomic symbol of Mercury. Its atomic no. is 80. It is a d block element and belongs to the…

Q: calcuya te 6011owing (a) ob molecues in 0•250 moles ob NH3 Num ber un

A: According to mole concept, 1 mole of any substance is equal to the Avogadro number (6.022 × 1022)…

Q: + KNO, → NâNO, + RUH KOH CH, + 0, → Co, + 2 H0 on Fe + Caso + Mg(OH) NH OH + HBr 3 HÓ + NH BI NaBr →…

A:

Q: 1A 2A 8A Atomic Number 1 E ЗА C 1 W 4A 5A 6A 7A G Zy 6. 4. K V P. Ad 8. 6. 10 11 12 13 14 15 Q U H.…

A: Amount of product formed is defined with the help of Limiting reagent using stoichiometric…

Q: 6) A 0.1803 g sample containing only Pb,O, and inert matter gives 0.2378 g of PbSO. Calculate the…

A: According to guidelines here we solve first question, i.e., question number 6, please ask other…

Q: Find the mass of 1 molecule of Li H in gram. O a. 4 O b. 7.949 O c. 1.32 x1023 O d. 1.32 x10-23

A:

Q: What is the mass of 0.560 moles of chlorine gas?   A. 19.9   B. 63.3   C. 127   D. 39.7…

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Q: 16. A three (3.00) mole sample of K25 would have how many atoms of potassium? 3.61 x 1024 1.81 x…

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Q: Given = 3.0 M Ca(oH)2 & 2.5L Looking For = g CacOH)z mol = M x L = (3.0MX25 L) mol= 7,5 mol Cal0H )2…

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Q: How many moles of oxygen are in 1.00 moles of magnesium sulfate?  A) 2 B) 4  C) 8  D) 12

A: Formula of Magnesium Sulfate is MgSO4. We have to calculate moles of oxygen present in it.

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.