No.
"For a fixed mass of ideal gas at fixed temperature, the product of pressure and volume is a constant." This means that if you have a container with an ideal gas in it, and the container is closed so that no gas can escape or get int (i.e. the mass of the gas contained is constant), when you raise the volume of the container by some ratio, the pressure will be reduced by the same ratio. So if you triple the volume, the pressure will be reduced to a third of its original value. And if you quadruple the pressure, the volume will go down by a factor of 4.
It is based on the pressure of a fixed mass of gas.
48. Assuming we can use the ideal gas law PV=nRT, we can see that if pressure and temperature are fixed, a gas will assume a volume proportional to the number of moles of that gas present (R is a constant). Oxygen gas (O2) has a molecular mass of 32, so 1 mole of oxygen has a mass of 32g in that volume, whereas your gas has a mass of 48g (as the volume is fixed, multiply the mass by the density difference) so the molecular weight of your gas is 48 - possibly ozone (O3).
Gas cannot be weighed in the traditional sense because it is a form of matter that does not have a fixed volume or mass. Instead, gas is typically measured by its volume or pressure.
When pressure is increased on a fixed mass of gas at constant temperature, the volume of the gas will decrease. This is known as Boyle's Law, which states that pressure and volume are inversely proportional when temperature is held constant.
A gas has no fixed volume or shape.
Gas
it is lighter than air, typically found in the upper regions of a confined space
no
Solid, liquid, and gas are the three states of matter. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases have neither a fixed shape nor volume and fill the container they are in.
A given mass of gas can assume any shape and volume; a given mass of liquid can assume any shape but has a constant volume; and a given mass of a single solid has a fixed shape and volume.
a gas