Compare 1 mole of H2, 1 mole of O2, and 1 mole of F2.(a) Which has the largest number of molecules? Explain why.(b) Which has the greatest mass? Explain why.

Q: In 1961, scientists agreed that the atomic mass unit (amu)would be defined as the mass of an atom of…

A: Yes, the Avogadro number is changed and now becomes bigger than previously. Yes, the definition of a…

Q: 1. Calculate the mass in grams of a single oxygen molecule, 02.

A: Molar mass of O2 is 32.0 g/mol  We have to calculate here mass of 1 molecule of oxygen i.e. O2

Q: What is the mass in grams of 0.626 cmol(+) of magnesium (Mg2+), where cmol(+) is the moles of charge…

A: Concept:  Number of moles can be find by the given formula:  Moles = weight M.W.  Where  M.W. =…

Q: Calculate the mass CARBON in 0.0299 moles of C6H12O6.

A: A pure compound is that which contains its constituent atoms in fixed ratio by mass.C6H12O6  is a…

Q: 2. How many H atoms are in 72.5 g of isopropanol (rubbing alcohol), C3H8O?

A:

Q: The molecular formula for benzene is C6H6. What is its empirical formula?

A: We have to predict the empirical formula of benzene.

Q: The mass of 5.20 moles of glucose, C6H12O6 is

A:

Q: how many molecules of acetylene (C2H2) are in 1.79 moles of acetylene?

A: We know that according to mole concept., Number of molecules in one mole = Avogadro Number =…

Q: Write the empirical formula corresponding to C₆H₄Cl₂

A: Molecular formula represent total number of each element present in a molecule while the empirical…

Q: Explain the difference between the terms molecularmass and formula mass. To what type of…

A: The difference between molecular mass and formula mass has to be explained and the type of compound…

Q: How many moles of chlorine atoms are there in a sample that consists of 1.89e+22 molecules of iodine…

A: There are 6.022×1023 molecules in one mole of iodine trichloride ICl3.

Q: C There are more moles of Ar than there are moles of N2.

A: Given that volume of both containers are same, and temperature also same.

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

A: Given, molecular formula C4H8

Q: 1. Determine the Molecular Mass of the following compound: NH,C,H,O,

A: Dear student I have given answer to your question in the image format.

Q: How many atoms of C are present in 52 grams of sugar C6H12O6?

A:

Q: 9.21 x10^19 molecules of hydrogen gas,(H2) are equal to how many grams of hydrogen gas?

A: Number of molecules = 9.21 × 1019 molecules Avogadro’s constant = 6.022 × 1023 molecules Numbre of…

Q: How many hydrogen atoms are in 27 molecules of diborane, B₂H₆?

A: The molecular formula of diborane is B2H6 We need to find number of hydrogen atoms present in 27…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17 H22 CINO4, of mass 24.0 mg…

A:

Q: What mass of ethanol (C2H6O) would contain 7.0 x 1026 atoms of carbon?

A:

Q: How many carbon atoms are there in one-half moles of methane molecules?

A: methane = CH4  Since in each molecule of methane we have 1 carbon atoms Hence the number of carbon…

Q: Determine the molar mass of Al2(SO.),-5H,0.

A: To determine the molar mass of

Q: 2. How many moles of Pb is 9.3 x 1015 atoms of Pb?

A: Number of atom of pb = 9.3×10^15 atoms

Q: There are ________ atoms of hydrogen in 300 molecules of CH3CO2H.

A: It is given that there are 300 molecules of CH3CO2H.

Q: How many moles are there in a copper wire that has a mass 10.234 g?

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

Q: How many N atoms in a sample of C7H5(NO2)3 that has the same number of O atoms as 13.0 g C6H12O6?

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A:

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many K+…

A: Applying concept of avogadro number. 1 mole = 6.022× 1023 atom/ molecules/ ions

Q: What are the mass percent of elements in glucose, C6H1206?

A:

Q: 5. How many carbon atoms are in one mole of C6H1206?

A: Note : As per our guidelines we are supposed to answer first question. Please repost the other…

Q: How many grams of K2C2O4, potassium oxalate, would containe 182 grams of pure potassium?

A: The molar mass of potassium oxalate can be calculated as:

Q: 2. A given sample of caffeine, C,II,N,0, has 0.23 g of carbon atoms in it. Hle nitrogen atoms are…

A: Mass of C atom = 2.3 g  Molar mass(MM) of C = 12 g/mol Moles of C = mass/MM          = 2.3/12   =…

Q: how many molecules are there in 1×10^-4 mole of benzene C6H6?

A: Given that, Number of moles of benzene = 1.0×10-4 moles

Q: 1. How many moles of Pb is 9.34 x 1015 atoms of Pb?

A:

Q: How many molecules are there in 1,975.0 g of table sugar, sucrose, C12H22011?

A: Given,  1975 g of table sugar, C12H22O11

Q: How many moles would 1.00 x 10^23 molecules of methane(CH4) represent

A: Given  Number of molecule of CH4  = 1 × 1023 molecule  Number of mole = ?

Q: What is the mass of 5.83 ×1017 molecules of liquid propane, C3H8?

A: Given, Number of molecules of C3H8 = 5.83 x 1017  Molar mass of C3H8 = 44.1 g/mol First, we find the…

Q: For the compound Glucose ( C6H12O6 ), What is the percent Oxygen in glucose?

A: We need to find the amount of oxygen present in glucose. We will calculate the given problem by…

Q: Explain the concept of molecular weight ?

A: Molecular weight can be described as a sum of atomic mass of all the atoms present in a molecule.…

Q: 2) What is the mass of 5.13 moles of Na2Cr2O7?

A: Solution First, we need to find out the molar mass of Na2Cr2O7 The molar mass of = (Number of atoms…

Q: What is the percent of N in N2H4?

A: Molecular weight of N = 14 g/mol Molecular weight of  H = 1 g/mol Molar mass of N2H4 = 32 g/mol…

Q: If a sample of N2O4 contains 19 g of nitrogen (N), how many moles of N2O4 are in that sample?

A: Since in 1 mole of N2O4 we will have 2 moles of N Hence moles of N2O4 = moles of N / 2  Since moles…

Q: How many oxygen atoms are in 28 molecules of dinitrogen tetroxide, N₂O₄?

A: The answer to the following question can be calculated as -

Q: 2. How many molecules are there in 2.54 moles of glucose, C,H1,O6?

A: We know that in one mole of any substance = 6.022×10²³ unit So one mole of glucose = 6.022 × 10²³ So…

Q: 2. A hydrocarbon was found to be 20% hydrogen by mass. If the molar mass is 30 g/mol, what is the…

A: Note : As per our guidelines we are supposed to answer first question. Please repost the other…

Q: d) How many atoms of hydrogen are in 1.0 mol dimethylnitrosamine? e) What is the mass of 1.0 x10°…

A:

Q: 5) How many molecules are in 2.9 mol of C7H5N3O6?

A: applying concept of Avogadro concept of molecules calculation

Q: What is the molar mass of nitroglycerin, C3HS(NO3)3?

A: Molar mass of a compound is equal to the sum of atomic masses of all the elements in that compound.…

Q: What is the molar mass of nitroglycerin, C3H5(NO3)3?

A:

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: If you have 168 grams of C6H12O6 (glucose), how many moles of glucose do you have? How many…

A: The number 6.022 × 1023 indicating the number of atoms or molecules in a mole of any substance is…

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.