Answer:
<h2>0.5 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>0.5 moles </h3>
Hope this helps you
Answer:
Wood, when dry, stores chemical energy. This chemical energy is released as the wood burns, and it is converted into heat, or thermal energy. This also produces light energy. As a result of burning, the wood turns into an entirely new substance - ashes.
Answer:
C) Q < K, reaction will make more products
Explanation:
- 1/8 S8(s) + 3 F2(g) ↔ SF6(g)
∴ Kc = 0.425 = [ SF6 ] / [ F2 ]³
∴ Q = [ SF6 ] / [ F2 ]³
∴ [ SF6 ] = 2 mol/L
∴ [ F2 ] = 2 mol/L
⇒ Q = ( 2 ) / ( 2³)
⇒ Q = 0.25
⇒ Q < K, reaction will make more products
Answer:
Acetone and water is immiscible
Acetone and hexane is miscible
Explanation:
Acetone with the chemical formula (CH3)2CO, is a nonpolar organic liquid that will mix easily. Hexane, an aliphatic hydrocarbon with 6 carbon atoms represented as C6H14 is also nonpolar. Thus, acetone and hexane would mixed completely to form a clear solution in the test tube.
On the other hand, acetone and water is immiscible (do not mix) since water, H2O, is a polar compound. And polar compounds do not react or dissolve nonpolar compounds (acetone). Usually, a mixture of acetone and water will be seen to form two distinct layers in the test tube.
