Answer:
The original solution’s concentration was 3.09 M.
Explanation:
Dilution is the reduction of the concentration of a chemical substance in a solution, and consists simply of adding solvent to an existing solution.
The quantity or mass of the solute is not changed but only that of the solvent. That is, as only solvent is being added, the consequence is that by not increasing the amount of solute but if the amount of solvent, the concentration of the solute decreases.
A dilution is expressed as:
Cinitial*Vinitial = Cfinal*Vfinal
In this case:
- Cinitial= ?
- Vinitial= 8.4 L
- Cfinal= 0.65 M
- Vfinal= 40 L
Replacing:
Cinitial*8.4 L = 0.65 M*40 L
Solving:
Cinitial= 3.09 M
<u><em>The original solution’s concentration was 3.09 M.</em></u>
Answer:
Gases have two properties that set them apart from solids and liquids. First, gases spontaneously expand to fill the container they occupy, no matter its size. In other words, a gas has no fixed volume or shape. Secondly, gases are easily compressible.
Explanation:
Hope this helps
Chemical weathering.
Chemical weathering is where one type of mineral changes into a different mineral.
Chemical weathering works through chemical reactions that cause changes in the minerals.
スタッフ?何をしたの?最初私はあなたが七面鳥を詰める方法について話していると思った.
Explanation:
Aluminium - Al
Iron Sulfate - FeSO4
The reaction is given as;
Al + FeSO₄ --> Al₂ (SO₄) ₃ + Fe
The balanced equation is given as;
2 Al + 3 FeSO₄ --> Al₂ (SO₄) ₃ + 3 Fe
In words it is given as;
Aluminium + Iron Sulfate --> Aluminium Sulfate + Iron