In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/12 the mass of an atom of ¹²C . Before then, it was defined as 1/16 the average mass of an atom of naturally occurring oxygen (a mixture of ¹⁶O, ¹⁷O, and ¹⁸O). The current atomic mass of oxygen is 15.9994 amu.
(a) Did Avogadro’s number change after the definition of an amu changed and, if so, in what direction?

Question

23-08-2022
Chemistry

Answered

In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/12 the mass of an atom of ¹²C . Before then, it was defined as 1/16 the average mass of an atom of naturally occurring oxygen (a mixture of ¹⁶O, ¹⁷O, and ¹⁸O). The current atomic mass of oxygen is 15.9994 amu.
(a) Did Avogadro’s number change after the definition of an amu changed and, if so, in what direction?

Answer :

Other Questions

In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/12 the mass of an atom of ¹²C . Before then, it was defined as 1/16 the average

Copper has two naturally occurring isotopes, ⁶³Cu (isotopic mass = 62.9296 amu) and ⁶⁵Cu (isotopic mass = 64.9278 amu). If copper has an atomic mass of 63.546 a

Chlorine has two naturally occurring isotopes, ³⁵Cl (isotopic mass = 34.9689 amu) and ³⁷Cl (isotopic mass = 36.9659 amu). If chlorine has an atomic mass of 35.4

Calculate the average atomic mass of carbon if 98.90% of the atoms are C-12 (12.000000 amu) and 1.100% are C-13 atoms (13.003354 amu). Type in your answer using

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. what is the binding energy (in j) of a 61co nucleus? (the mass of a cobalt-61 nucleus

tutorconsortium341 tutorconsortium341 · Answer 1 · 2022-08-29T10:40:49-04:00

There won't be a redefinition of the atomic mass unit because it was deprecated in 1961 and there is no sense in revising the definition of Avogadro’s number.

What is Avogadro’s number?

The proportionality factor that connects the quantity of material in a sample with the number of constituent particles (often molecules, atoms, or ions) in that sample is known as the Avogadro constant.
The reciprocal mole, which is its SI unit, is precisely defined as [tex]N_a = 6.02214076 \times 10^2^3 mol ^-^1[/tex]. It is named for the Italian physicist Amedeo Avogadro, albeit he was not the chemist who calculated its value.
At the Karlsruhe Congress in 1860, Stanislao Cannizzaro explained this number four years after Avogadro's passing.

To know more about Avogadro’s number with the given link

https://brainly.com/question/1445383

#SPJ4