The answer for the following problem is mentioned below.
- <em><u>Therefore the mass of an object is 14.16 grams.</u></em>
Explanation:
Force:
The push or pull on an object with mass that cause change in the velocity
It is a vector quantity.
The formula to calculate the force is:
F = m × a
Given:
Force (F) = -136 N
acceleration (a) = -9.6 m/s^2
To calculate:
mass of the object (m)
We know that,
<em>F = m × a</em>
where,
F represents the force of the object
m represents mass of an object
a is acceleration of an object
From the equation;
-136 = m × -9.6
m =
m = 14.16 grams
<em><u>Therefore the mass of an object is 14.16 grams.</u></em>
Answer:
Clouds are formed when water warms up and changes into a gas called water vapor, which rises up into the air.
Explanation:
3.00 M means 3.00 mol/L. So if you want 500 mL=0.5 L, it needs 3.00 mol/L * 0.5 L = 1.50 mol. For NaCl, the molar mass is 23+35.5=58.5 g/mol. So the amount of NaCl needed is 1.50*58.5=87.75 g. So the answer is 87.75 grams.
Answer:
Explanation:
The substances are:
-) Ethane,
-) 1-pentanol,
-) Potassium chloride,
-) Propane,
For this question, we have to remember the <u>structure of water</u>. Due to the <u>electronegativity difference</u> between oxygen and hydrogen in this structure, we will have the formation of<u> dipoles</u>. The dipoles interact better with <u>net charges</u>, due to this, the Potassium chloride is the compound with highest solubility (due to the formation of a cation and an anion):
Then, in 1-pentanol we an "OH". This structure due to the presence of the <u>hydroxyl group</u> can form <u>hydrogen bonds</u>. Therefore, this compound would be the second more soluble.
Finally, the difference between propane and ethane is a carbon. In propane, we have <u>an additional carbon</u>. If we have more carbons we will have <u>more area of interaction</u>. If we have more area we will have <u>more solubility</u> therefore propane is more soluble than ethanol.
In conclusion, the <u>rank</u> from most soluble to least soluble is:
1) Potassium chloride,
2) 1-pentanol,
3) Propane,
4) Ethane,
I hope it helps!