Answer:
<h2>70.27 moles</h2>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
We have the final answer as
<h3>70.27 moles</h3>
Hope this helps you
The magnesium dissolves to form magnesium chloride and hydrogen gas is released.
Mg + 2HCl -----> MgCl2 + H2(g).
The electrons will be affected. They are the ones that absorb photons and jump to energy levels.
Answer:
<h3>The answer is 0.79 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass of ethyl alcohol = 63.3 g
volume = 80 mL
The density is
We have the final answer as
<h3>0.79 g/mL</h3>
Hope this helps you
