Answer:
The required mass is 22.04 g
Explanation:
We know,
Atomic mass of Co= 58g.
Now,
1 mole Co = 58 g
∴ 0.38 mole Co= (58 X 0.38) g
= 22.04 g
So, the required mass is 22.04 g
This question is providing us with the chemical formula of a compound whose name in IUPAC convention is strontium hydroxide heptahydrate according to the following.
<h3>IUPAC nomenclature in hydrates</h3>
In chemistry, the IUPAC allows us to assign specific names for all the chemicals in the world, in order for them to be recognized all around the world and avoid common names which differ from region to region.
Thus, for the compound we are given, we see the presence of a cationic strontium ion and an anionic hydroxide ion, both accompanied by seven molecules of water, which makes it a hydrate.
In such a way, its IUPAC name will be strontium hydroxide heptahydrate, according to the both of the ions and the number of water molecules into it.
Learn more about hydrates: brainly.com/question/919417
moles of Na produced = 6 moles
<h3>Further explanation</h3>
Given
Reaction
2Na3N---> 6Na+N
6 moles of Na3N
Required
moles of Na
Solution
I don't really understand the reaction in the problem, all I know is the decomposition reaction of sodium azide NaN3
2NaN₃ → 2Na + 3N₂
The reaction coefficient shows the mole ratio of the compounds involved in the reaction
From the equation(balanced), mol ratio of Na : NaN₃ = 2 : 2, so mol Na :
= 2/2 x moles NaN₃
= 2/2 x 6 moles
= 6 moles
Tissues combine to form organs.