State is characterized by the lowest density of the three states
1 answer:
Answer:
Gas
Explanation:
Matter is anything that has weight and occupies space.
Therefore, we can conclude that every matter has distinct density that typifies them because density is the mass per unit volume of any substance.
Density =
From the density equation, we see that the higher the mass, the higher the density. The higher the volume the lower the density.
- The state of matter with the lowest mass and highest volume will have the lowest density.
- Gases are known to have the least mass because they have very negligible weight.
- The occupy very large spaces according to where they are confined.
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Answer:
2,57 g of precipitate.
Explanation:
For the reaction:
6 NaOH + Al₂(SO₄)₃ → 2 Al(OH)₃ + 3 Na₂SO₄
The precipitate is Al(OH)₃.
185,5mL of 0,533M NaOH are:
0,1855L × 0,533M = <em>0,0989 moles NaOH</em>
Moles of Al₂(SO₄)₃ are:
15,8g × = <em>0,0462 moles Al₂(SO₄)₃</em>
For the total reaction of 0,0989 moles NaOH with Al₂(SO₄)₃ you need:
0,0989moles NaOH × = <em>0,0165 moles Al₂(SO₄)₃</em>
As you have <em>0,0462 moles Al₂(SO₄)₃ </em>the limiting reactant is NaOH.
0,0989 moles of NaOH produce:
0,0989moles NaOH × = <em>0,0330 moles of Al(OH)₃</em>
These moles are:
0,0330 moles of Al(OH)₃ × (78 g/mol) = <em>2,57 g of Al(OH)₃ ≡ mass of precipitate</em>
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I hope it helps!
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