Answer:
The theoretical yield of lithium nitride is 7.52 g.
Explanation:
Moles of lithium =
Moles of nitrogen gas =
According to reaction, 6 moles of lithium reacts with 1 mole of nitrogen gas.
Then 0.6428 moles of lithium will react with:
of nitrogen gas
As we can see that moles of lithium are in limiting amount. So, the moles of lithium nitride will be depend upon the moles of lithium. Hence, lithium is a limiting reagent.
According to reaction,6 moles of lithium gives 2 moles of lithium nitride.
Then 0.6428 moles of lithium will give:
of lithium nitride
Mass of 0.21428 moles of lithium nitride:
0.2143 mol × 35 g/mol= 7.52 g
Answer:
<h3>The answer is 8.4 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer as
<h3>8.4 g/cm³</h3>
Hope this helps you
The answer is a constant, a variable is a thing that you change
Answer:
The area around the nucleus must be of low mass.
Explanation:
Rutherford`s experiment showed that there are some positive charges in the center of the atoms, and because they are all together, they will give a great mass to the atom.
It was quite different from Thomson`s experiment, in which it was thought that the negative charges were mixed with the positive charges, around the atom (like a Pudding Model). In Rutherford`s experiment, because the direction of beta particles, it was the prediction of the positive nucleus.
Hope this info is useful.
It changes to a liquid. Don't forget to mark as brainliest answer