calculate the gram atomic mass of one atom of oxygen
Answers
Answered by
20
=16/6.022*10^23
=2.656*10^-23 g
=2.656*10^-23 g
Answered by
8
The mass of an Oxygen atom is:
First lets see that an oxygen atom is made out of (I'm taking the most common Oxygen isotope - Oxygen-16)
It contains 8 Protons
8 Neutrons
and 8 Electrons
1 Proton's weight is 1.6726231e-27 kg
2 Neutrons weight is 1.6749286e-27 kg
3. Electrons weight is 9.1093897e-31 kg
8 Proton's = 1.3380985e-26 kg
8 Neutron's = 1.3399429e-26 kg
8 Electron's = 7.2875118e-30 kg
So total weight is 2.6787702e-26 kg
(0.000 000 000 000 000 000 002 678 770 2 kg)
Since this value will be very inconvenient in everyday calculations, though values like these might be used in very important applications which need values like this. Otherwise the mole(the weight of oxygen in one mole of it or 6.023e+23 atoms of Oxygen) value is used for Oxygen-16 which is 16g!
Or as Dhrubajyoti Samanta mentioned 15,9994g.19.1k Views · 5 UpvotesYour response is private.Is this answer still relevant and up to date?Related QuestionsMore Answers BelowIs the actual atomic mass greater than the mass number?How do you calculate the mass of one oxygen atom?What is the actual mass of one carbon atom?What is the mass of an atom of oxygen?What is the atomic mass of oxygen?Ask New QuestionSpandan Mallick, Mad ScientistAnswered Mar 15 2016It's about the same as eight protons and eight neutrons; the electrons make very little difference, and the exact isotope of oxygen would determine the actual weight.
But, basically, divide 16.0 grams by Avogadro's Number:
16.0/6.02e23 = 2.6578073089700999e-23
according to Python. That number, 2.66 times 10^-23, is the weight of a single oxygen atom, in grams. That's 2.66e-26 kilograms, incidentally.
So... the actual mass comes to be:
0.000 000 000 000 000 000 000 026 57 grams.
As for atomic weights.... I have a joke to show you... just for fun:
First lets see that an oxygen atom is made out of (I'm taking the most common Oxygen isotope - Oxygen-16)
It contains 8 Protons
8 Neutrons
and 8 Electrons
1 Proton's weight is 1.6726231e-27 kg
2 Neutrons weight is 1.6749286e-27 kg
3. Electrons weight is 9.1093897e-31 kg
8 Proton's = 1.3380985e-26 kg
8 Neutron's = 1.3399429e-26 kg
8 Electron's = 7.2875118e-30 kg
So total weight is 2.6787702e-26 kg
(0.000 000 000 000 000 000 002 678 770 2 kg)
Since this value will be very inconvenient in everyday calculations, though values like these might be used in very important applications which need values like this. Otherwise the mole(the weight of oxygen in one mole of it or 6.023e+23 atoms of Oxygen) value is used for Oxygen-16 which is 16g!
Or as Dhrubajyoti Samanta mentioned 15,9994g.19.1k Views · 5 UpvotesYour response is private.Is this answer still relevant and up to date?Related QuestionsMore Answers BelowIs the actual atomic mass greater than the mass number?How do you calculate the mass of one oxygen atom?What is the actual mass of one carbon atom?What is the mass of an atom of oxygen?What is the atomic mass of oxygen?Ask New QuestionSpandan Mallick, Mad ScientistAnswered Mar 15 2016It's about the same as eight protons and eight neutrons; the electrons make very little difference, and the exact isotope of oxygen would determine the actual weight.
But, basically, divide 16.0 grams by Avogadro's Number:
16.0/6.02e23 = 2.6578073089700999e-23
according to Python. That number, 2.66 times 10^-23, is the weight of a single oxygen atom, in grams. That's 2.66e-26 kilograms, incidentally.
So... the actual mass comes to be:
0.000 000 000 000 000 000 000 026 57 grams.
As for atomic weights.... I have a joke to show you... just for fun:
Similar questions