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Q: Determine thev molar masses of these compounds  d)C2H5OH e) HC2H3O2 F) Fe3O4

A: Note : As per our guidelines we are supposed to answer first 3 parts. Please repost other parts as…

Q: (f) number of O atoms in 6.25 x 10-3 mol Al(NO3)3

A: Total number of oxygen atom = 3.39×1022 atoms

Q: • How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything which is in the number of 6.022×1023 is said to…

Q: A tube of Thothpaste contains 0.76 g of sodium monofluorphosphate (Na2PO3F) in 100 mL. a)what mass…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: OH O a. NaOH O b. Ag20, H20, NH40H O c. BrH4 Od. Croз, HC, ругidine e. Cro3. Н20, Н2S04 Of. NABH4 g.…

A: NaBH4  is the best reducing agent for this reaction.

Q: NH2 1.? CI COOH 2.? ? Ph3P-CHPH Ph Me HO Ме H. N. 2 moles of ? OEt N. NH2 F. F. 1. ? EtO 2. ? EtO F…

A: Detail mechanistic pathway is shown below to find out the reagent for the given conversion

Q: N2 + 3H, 2NH3 Hw mey mos of N do you need to make moles of N? rytothat tyin gven to y thie p otude…

A: Moles of H2= 0.37 moles  Moles of NH3=?

Q: 2. Consider the complete re If one starts with 20.0mL 0.5M a) The mass of K2CO3 neu

A: The chemical reaction is given below: K2CO3 +2HCl ----------------> 2KCl+H2O+CO2

Q: Calculate the formula mass for Cr(C2H3O2)3 to the hundredths’ place (use 1.01 amu for hydrogen)

A: The molecule is Cr(C2H3O2)3

Q: 2o dreps = I mi I drop=to mis0,08ML Mores H,u- Mass =05- a,77x103 MMall 18.02 Cle.088413 るってて。) If…

A: Given the number of water molecules to be lined up = 1.67*1021 molecules Given the distance of 1…

Q: Make the following conversions: 11 mol O2 to atoms of O

A: Conversion of 11 mol O2 to number of O atom ?

Q: 1. Calculate the mass percent of wate

A: Given, a hydrated salt as follows,LiNO3.3H2Owe are asked to calculate the mass percent of water in…

Q: What is the mass percent C in isooctane, C(CHs).CH:CH(CH3)z. Select one: Oa 15.88 % C Ob 8412 % C O…

A: The concentration of a substance can be measured in terms of mass by mass percentage. This…

Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

A:

Q: mass

A:

Q: The ratio of the mass of O to the mass of N in N20z is 12:7. An- other binary compound of nitrogen…

A: The given ratio of mass O to the mass of N in N2O3 is 12:7 Mass of O in N2O3 = 3x16 amu…

Q: How many Oxygen are in 6.913x10^23 molecules of nitroglycerin C3H5N3O9?

A: Given question is checking our mole concept principal. In this question, number of molecules of…

Q: 1. (MeO)MENH•HCI, DCC EtzN, CH2CI2 2. .CO2H MegSi. Li THF, -78 °C

A: Most important types of reactions that occur in a carbonyl compounds are nucleophilic carbonyl…

Q: vert 3 16 oF C2 H6 O to 9 mol

A:

Q: Calculate Moleculer mass of the H2SO4

A: Solution-  H2SO4 is the a strong acid.  atomic masses of H, sulfur and oxygen. H = 1.008 g/mol S =…

Q: ted, how many O A. 623.7 g O B. 415.8 g OC. 2495 g O D. 138.6 g O E. 104.0 g

A: The question is based on Reaction Stoichiometry. We have to calculate Amount of potassium…

Q: Find y n-Al= %3D use the follamng equation: ng mass of Sample = (n-H,-L5y )(65.4) + 27.0y m2య లఆ…

A: Given: Mass of sample = 0.090 g. And n-H2 = 2.720 × 10-2 moles.

Q: Vanadium forms four different oxides in which the percent by mass of vanadium is, respectively, (a)…

A:

Q: Fictitous metall symb0l atomic masS charge, as an ion I'm 25.44 et +1,13 treeium 13.11 grassiom a)…

A: As per our guidelines we can only solve first three sub-parts of a question. Please resubmit the…

Q: O A. 9.3 moles O B. 42 moles OC. 56 moles O D. none of these O E. 14 moles OF. 19 moles O G. 84…

A: From balanced reaction , 1 mol Co3(PO4)2 required = 2 mol Na3PO4  14 moles Co3(PO4)2 required = 2 ×…

Q: (c) 3.25 M KASO lons: O KAS Dot O AsO, OK O AsO, M (cation]- [anion]-

A: Dissociation of 1 K3AsO4 gives 3K+ and 1 AsO43-: K3AsO4  ------->  3K+  +  AsO43- So, Molarity of…

Q: 30 How many grams of Mo(SO3)3 are in 1.60x1023 molecules of Mo(SO3)3?

A: Given, molecules of Mo(SO3)3 = 1.60*1023 Grams of Mo(SO3)3  = ? One mole on any substance contains…

Q: Starting with 9.20 mol of 02 , how many mol of H2S will you need ? and how many mol of S02 will you…

A: Moles of O2 = 9.20 mol  Moles of H2S = ?  Moles of SO2 = ?

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

A: Given that M.W of BaSO4 = 233.42 g/mole  M.W of Na2SO4 = 140.02 g/mole  Weight of Na2SO4 = 1.5 g

Q: When aluminum metal is heated with an unknown element from group 6A (O, S, Se, Te) an ionic compound…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: 009 (part 1 of 4 chemist measured out 8.25 g of copper(II) romide tetrahydrate (CuBr2 · 4 H2O). How…

A: Molar mass of CuBr2.4H2O=295.4151 g/molNo, of Oxygen atoms present in the molecule =4Mass=4×(16…

Q: Calculate the mass percent of H in C,HgO.

A: Since, molar mass of carbon = 12.0107 g/mol Molar mass of hydrogen = 1.0079 g/mol Molar mass of…

Q: If Avogadro's no. is taken as 'N' then 2 moles of H20 will have how many atoms of H?

A:

Q: Haw many Chdovie atoms are in 25.0g tof Ccly2

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Q: 4 H20, HSO4 9. Bra HO HCI 1. ВН-THF 2. НО, НО Нао МСРВА CH;OH H2SO4 7

A:

Q: B. Calculating Average Molecular Mass 1. Glucose- C6H12O6 2. Tetrasulfur dinitride- S«N2 3. Diboron…

A: Average molecular mass can be calculated as follows

Q: ta 1+ 77,) A bincury compound of boron ☆ hudregen hefs He following percentage compostion: 98.4%…

A:

Q: of atoms blocks metals or nonmetals? metals Os OP [G]ns? nonmetals Od Of O metalloids O metals Os OP…

A:

Q: 81.073 amu is the molecular mass of chloroform(CHCI3) hexane(CH14) tetra methyl silane(Si(CH3)4)…

A: Mass of 1mole substance is called molecular mass and it is expressed in amu unit. Molecular mass of…

Q: Part 3 28.4 mL of 0.403 M (NH4)2CO3 mol NH4*: O 11.4 0.0228 O 11400 O 0.0114

A:

Q: 23 - Determine the molecular fomula of a compound that has a molar mass of 183 g/mol and an…

A: This question is straight forward We know that molecular formula is whole number multiple of…

Q: A 43.0 g sample of hydrated cobalt (II) sulfite is heated resulting in anhydrous cobalt (II) sulfite…

A: We have given that   A 43.0 g sample of hydrated cobalt (II) sulfite is heated resulting in…

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: Calculate the percent oxygen by mass in disilicon trioxide(Si2O3) to 3 significant figures.

A: Molar mass of O = 15.999 g/mol.Molar mass of Si2O3 = 104.168 g/mol.

Q: One főm o6 an active ingredient of Supp lements is iron II Sulphate bl what is inumber o6 m…

A: Iron is present naturally in many products like in dietary food and other food supplements.  It is…

Q: I'm a crystal of silver, four atoms occupy the volume of a cube that is 0.409 no per side. Taking…

A: Given:Edge length  = 0.409 nmDensity = 10.5Calculate the number of atoms in one mole of silver ?

Q: I mole of HOCH,CH,OH/H 1.0, 1. LIAIH, H* D. H,0 2. Zn/H 2. H,0-

A:

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.