Calculate the number of atoms or molecules in 5.7 mol Au

Q: How many moles of nitrogen dioxide are present in 3.36 × 10ª molecules of this compound.

A: Given: Number of molecules=3.36×1021 To find: Number of moles Formula: where NA is the Avogadro…

Q: Calculate the number of atoms in 2.8 mol of Barium.

A: 1 mole of any substance has number of atoms or molecules equal to Avogadro's number in it.

Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: How many atoms are in 7.4 mol of carbon?

A: To determine the number of atoms of C, multiply moles C by Avogadro's number.

Q: Calculate the number of molecules in 6.00 molesmoles H2SH2S.

A: • The values provided in the question are:-    i) Number of moles of H2S = 6.00 mol    • We need to…

Q: Write a sentence that describes how to determine the number of moles of a compound in a known mass…

A: Moles of any substance is defined as the 6.022 X 1023 molecules of the substance.

Q: Determine the number of atoms of O in 10.0g ofCO2.

A:

Q: Calculate the molar mass of benzene(C6H6)

A: The molar mass of benzene (C6H6) can be calculated as,

Q: Complete the table below for calculating the molar mass of the compound carbon tetrachloride. Molar…

A: The complete table for the molar mass of the compound carbon tetrachloride is given below, 1mole of…

Q: How many molecules are equal to 2.25 moles of sulfur dioxide? Round to two decimal places.

A: 1 mole of any compound or element has avogadro no. Of molecules or atoms.

Q: Determine the number of atoms in 30.0 g of Zn.

A: Given that: Mass of zinc = 30.0 g Number of atoms of Zn = ?

Q: Calculate the number of molecules in 210 grams of water.

A: 1) Mole in terms of particles:  1 mole = 6.022 x 1023 entities  This number is called Avogadro…

Q: 8 Calculate the number of moles, and molecules in:

A: 8. Number of moles = mass/molar mass  1 mol = 6.022 × 1023 molecules

Q: Calculate the mass % of H in ammonium bicarbonate.

A: We have been asked the mass % of H in ammonium bicarbonate.

Q: calculate the number of H atoms in 0.350 mole of glucose?

A: One mole of glucose = 6.023 × 1023 atoms.0.350 mole of glucose = 0.350 × 6.023 × 1023 atoms = 2.10 ×…

Q: What

A: suppose that, mass of C8H18 is m grams  Molar mass of C8H18 = 8 • ( molar atomic mass of C ) + 18 •…

Q: what is the molecular formula of acetone and what is the molar mass?

A: • acetone is the smallest and the simplest compound of ketone.      • acetone is the common name…

Q: How many H atoms are in 0.100 mole C13H18O2

A: The chemical formula of the molecule is C13H18O2  Given the moles of C13H18O2 = 0.100 mol

Q: Calculate the mass percent composition of carbon in carbon containing compound. CH4

A: The mass percent composition of carbon in carbon containing compound, CH4 is to be calculated.

Q: How many MOLES of dioxygen difluoride are present in 4.95×1022 molecules of this compound ?

A: We have to calculate the moles of dioxygen difluoride .

Q: What is the percent composition of caffeine (C8H10N4O2)?

A: Given :- chemical formula of caffeine = C8H10N4O2  To calculate :- percent composition of each…

Q: how many atoms are in 355 mol Na

A: using mole concept we easily determine the presence of atoms , molecule and ions in species.

Q: Calculate the number of atoms or molecules in

A: One mole of a substance is equal to Avagadro no. (6.022 x 1023 molecular entities, i.e. atoms,…

Q: o determine the number of moles of H2

A: Number of moles = mass/molar mass

Q: What is the percent  Carbon in the formula  Ethanol? ( C2H5OH )

A: Given compound is Ethanol  Ethanol has chemical formula C2H5OH Where C = Carbon , O = Oxygen , H =…

Q: Complete the table below for calculating the molar mass of the compound boron trifluoride.

A: Molar mass is the mass of a given chemical element or compoundg divided by the amount of substance…

Q: How many moles are in 9.3 × 1024 molecules of carbon dioxide?

A:

Q: What is the number of formula units in a 7.20 mol sample of NH4NO3?

A: A formula unit is the lowest whole number ratio of the ions present in an ionic compound. It is the…

Q: Calculate how many molecules there are in 16.4 g HF.

A:

Q: Determine the number of atoms in 71.0g of Br. (Molar mass of one mole of Br is 79.90)

A: Mole is the unit to represent quantity of fundamental particle like proton neutron and electron.

Q: Determine the molar mass of CH₃OCH₃.

A: The molar mass of CH₃OCH₃ is to be calculated.

Q: Complete the table below for calculating the molar mass of the compound sulfur tetrafluoride. Molar…

A: A molecule comprises distinct atoms with distinct proportions. The overall mass of that molecule…

Q: How many molecule are in 0.200 mole C13H18O2

A: Given, moles of C13H18O2 = 0.200 mole Number of molecules are in 0.200 mole of C13H18O2 = ?

Q: The number of molecules in 76g of fluorine

A:

Q: Determine the percent ammonia, NH3, in Co(NH³) 6C1, to four significant figures.

A:

Q: Calculate the number of atoms in 0.0015 mole  of Cu.

A: Given, A mole of copper =  0.0015 moles. Calculate the number of atoms.

Q: Calculate the number of moles of O atoms in 18.1 mol of formaldehyde, CH2O

A: Answer 18.1 moles of oxygen atoms are in 18.1 moles of formaldehyde, CH2O.

Q: Calculate the number of moles and number of molecules in 25.0 g of nitrogen gas

A: Given Mass of nitrogen gas ( N2 ) = 25.0 g

Q: Complete the table below for calculating the molar mass of the compound nitrogen dioxide. Molar mass…

A: Molar mass of a molecule is equal to sum of atomic masses of all elements present in that molecule.

Q: How many molecules are in 2.55 mol S8?

A: The moles of sulphur is 2.55 (given)Mol → Number of molecules

Q: Nicotine, C10H14N2, is an alkaloid that is produced by "nightshade" family of plants as an…

A: we know, molar mass of : C = 12.01 g/mol , H = 1.007 g/mol , N = 14.01 g/mol =>molar mass of…

Q: How many moles of S are needed to combine with 0.454 mol Al to give Al2S3? mol S

A: Given:: Moles of Al = 0.454 mol moles of S = ?

Q: Has the greatest number of atoms a) 4.0 mol Nh3 b) 6.0 moles CÓ

A: One mole consists of 6.022×1023 atoms. Thus,more the number of moles,more will be the number of…

Q: Calculate the number of nitrogen atoms in 240. g of ammonium nitrate.

A: The molecular formula of ammonium nitrate is: To calculate the number of moles of ammonium nitrate…

Q: Calculate the number of atoms in 15.0g of aluminum metal

A: Number of atoms in per mole = 6.022 × 1023 atoms  Molar mass of Al metal = 26.98 g/mole

Q: Calculate the molar mass of (NH4) 2S04

A: We will go step by step:   Molar mass of N = 14.0067 g/mol Molar mass of H = 1.00784 g/mol Molar…

Q: How many molecules of water make up 5.7 moles?

A: A mole is the amount of a substance that contains 6.02*10^23 representative particle of that…

Q: How many Hydrogen atoms are in 7.10 mol of ammonium sulfide?

A: The number of moles of hydrogen atoms present in ammonium sulfide are calculated as

Q: the number of moles in 7.44*10^4kg of lead

A: Given Mass of lead= 7.44×104 Kg×103 g1 kg=7.44×107 g Molecular Mass of lead= 207 g/mol To calculate:…

Q: determine the molar mass of li2CO3.

A: The compound given is Li2CO3.

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.