Answer:
- The solubility of the salt is 35.16 (g/100 g of water).
- It would take 71.09 grams of water to dissolve 25 grams of salt.
- The percentage of salt that dissolves is 52.7 %
Explanation:
<h3>
a.</h3>
We know that 3.20 grams of salt in 9.10 grams of water gives us a saturated solution at 25°C. To find how many grams of salt will gives us a saturated solution in 100 grams of water at the same temperature, we can use the rule of three.

Working it a little this gives us :


So, the solubility of the salt is 35.16 (g/100 g of water).
<h3>
b.</h3>
Using the rule of three, we got:

Working it a little this gives us :


So, it would take 71.09 grams of water to dissolve 25 grams of salt.
<h3>C.</h3>
Using the rule of three, we got that for 15.0 grams of water the salt dissolved will be:

Working it a little this gives us :


This is the salt dissolved
The percentage of salt dissolved is:



Answer:
Infra red waves, visible light waves,
Explanation:
neither, a shadow cant be darker unless your closer to the surface your pointing the light at.
Answer: Bohr's model
Explanation:
The Bohr's model is also known as the solar system model which describe that an atoms are basically imagine in the form of solar system. The Bohr's model basically describe about the atoms that it consist of nucleus with the number of electron in an orbit by using the electrostatic attraction.
The Bohr's model are introduced for overcoming the drawback in the Rutherford model as he proposed an idea that at different energy levels the electron can revolve in certain orbits around nucleus.