Answer:
Explanation:
Hello,
In this case, since one gold atom has a mass of 196.97 g, for the given gold cluster that has 31 gold atoms, the mass will be:
Whereas we consider the mass of all the 31 gold atoms to compute the overall mass.
Best regards.
One mole contains 6.02×10²³
If x mole contains 3.131×10²⁴
x = 3.131×10²⁴
-------------
6.02×10²³
x = 0.52×10²⁴¯²³
x = 0.52×10¹
x = 5.2moles....
Hope this helped...?
It is improbable that any specie with d0 or d10 will exhibit color in coordination compounds.
- If the central metal atom or ion in a coordination complex contains unfilled d orbitals, the compound exhibits color.
- Weak d–d transitions that produce spectral bands in the visible spectrum are thought to be the source of the colors.
- Hence, It is improbable that any specie with d0 or d10 will exhibit color in coordination compounds.
<h3>What are coordination compounds?</h3>
- Molecules that have one or more metal centers bonded to ligands are known as coordination compounds (atoms, ions, or molecules that donate electrons to the metal).
- These complexes may have a charge or be neutral.
- The complex is stabilized by nearby counter-ions when it is charged.
To learn more about coordination compounds visit:
brainly.com/question/27289242
#SPJ4
Explanation:
1 mole of a gas has 22.4 L of volume at STP. Therefore, 0.5 mol of H2 has 0.5 x 6.022 x 1023 = 3.011 x 1023 molecules. Hence, the number of moles, molecules and atoms present in 11.2 liters of H2 at STP are 0.5 , 3.011 x 1023 and 6.022 x 1023 respectively.
Answer:
Aksjisssjsjszjsusshisbzjsvssjsh