Answer:
The final pressure is 173 kPa.
Explanation:
A mixture of gases at an initial pressure of P₁ = 101 kPa is compressed from an initial volume V₁ = 7.20 dm³ to a final volume V₂ = 4.21 dm³. If we suppose an ideal gas behavior and that temperature remains constant, we can apply Boyle's law to find out the final pressure P₂:
P₁ . V₁ = P₂ . V₂

Yes , it does become massive and it also becomes heavier.
The amount of space that matter occupies is called its volume. Solids, liquids, and gases all have volume.
Answer:
0.65 M
Explanation:
Molarity (M) is the amount of moles of a substance per liter.
In other words, M = moles of substance / liters of solution
Since you're already given the moles of NaCl and the volume of the solution, you can plug those into the equation.
M = moles of NaCl / liters of solution
M = 1.5 mol NaCl / 2.3 L
M = 0.65 mol/L (or 0.65 M)
The final temperature of the water will be 31.2 C.