calculate the number of molecules in 6.4g of so2. (b) 1.5 moles of hydrogen chloride
The number of molecules in 6.4g of so2 (s=32,o=16),32+16*2=64g
64g(1 mol) of so2 contains 6.02*10^23 molecules
6.4g of so2 contains=6.02*10^23*6.4/64,
=6.02*10^22.answer
number of moles = mass/Molar mass
N=m/Mr
Kate didn't answer all of the question.
mols SO2 = grams SO2/molar mass SO2 = ?
Then there are 6.02E2 molecules in 1 mol
Mass=
To calculate the number of molecules in a given amount of substance, you need to use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.
(a) So2:
1. Start by calculating the number of moles of So2 using the given mass and its molar mass. The molar mass of So2 is approximately 64.06 g/mol.
Number of moles = Mass / Molar mass
= 6.4 g / 64.06 g/mol
= 0.1 mol
2. Once you have the number of moles, multiply it by Avogadro's number to calculate the number of molecules.
Number of molecules = Number of moles x Avogadro's number
= 0.1 mol x 6.022 x 10^23 molecules/mol
= 6.022 x 10^22 molecules
Therefore, there are approximately 6.022 x 10^22 molecules in 6.4g of So2.
(b) Hydrogen chloride (HCl):
1. Since 1 mole of a substance contains Avogadro's number of molecules, if you have 1.5 moles of hydrogen chloride, then you already have the number of molecules.
Number of molecules = 1.5 mol x 6.022 x 10^23 molecules/mol
= 9.033 x 10^23 molecules
Therefore, there are approximately 9.033 x 10^23 molecules in 1.5 moles of hydrogen chloride.