Answer:
10 ml
Explanation:
i am pretty sure this is the answer
Flames, lightning, and/of auroras.
Answer:
The boiling point of water will be lower than the boiling point of the solution made from ethylene glycol and water.
Explanation:
It is all related to the colligative properties, in this case we talk about boiling point elevation.
The colligative properties are four: osmotic pressure, boiling point elevation, freezing point depression and lowering vapor pressure.
They all depends on the solute. As we add more solute, the colligative property will change according to the relationship between the pure solvent and the solution. In boiling point elevation, the boiling point of the solution will be higher, the osmotic pressure will be also higher and in freezing point depression and lowering vapor pressure, solution will has a lower freezing point and a lower vapor pressure.
Relation between the colligative properties:
ΔTf / Kf = ΔTb / Kb = ΔP / P = π / R.T
Answer:
It takes 86 days take to cover half of the lake
Explanation:
In the day #1, the amount of the algae is X,
In the day #2 is 2X
In the day #3 is 2*2*X = X*2²
...
In the day #n the amount of the algae is X*2^(n-1)
Assuming X = 1m³. In the day 87, the area infected was:
1m³*2^(87-1)
7.74x10²⁵m³ is the total area of the lake
the half of this amount is 3.87x10²⁵m³
The time transcurred is:
3.87x10²⁵m³ = 1m³*2^(n-1)
Multiplying for 5 in each side:
ln (3.87x10²⁵) = ln (2^(n-1))
58.9175 = n-1 * 0.6931
85 = n-1
86 = n
<h3>It takes 86 days take to cover half of the lake</h3>