Answer : The final pressure of the gas is, 
Explanation :
Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

or,

where,
= initial pressure = 545 mmHg
= final pressure = ?
= initial volume = 775 mL
= second volume = 171 mL
Now put all the given values in the above equation, we get:


Therefore, the final pressure of the gas is, 
Answer:
3189.07Pa
Explanation:
The conversion of 23.92mmH to Pa can be achieved in the following way:
760mmHg = 101325Pa
23.92mmHg = (23.92x101325)/760 = 3189.07Pa
Mainly around the equator, since it receives the most direct sunlight year round.
You can tell if each side of the equation has the same molar mass.
Answer:
moles
Explanation:
The value of 3 in the chemical compound refers to the number of moles present of it.