The density of oxygen under normal conditions is 1.43 kg / m3. what is the density of oxygen

The density of oxygen under normal conditions is 1.43 kg / m3. what is the density of oxygen at a pressure of 1.5 * 10 ^ 5 pa at the same temperature?

1. Under normal conditions, the temperature and pressure are:

T = 0 ° C = 273 K;

P = 101.325 * 10 ^ 3 Pa;

2.For calculations, we use the Clapeyron-Mendeleev equation:

PV = nRT;

PV = mRT: M;

PVM = mRT;

3. PM: RT = m: V, replace the expression m: V = ρ;

ρnew (O2) = PM (O2): (RT);

4.we substitute the calculated data into the formula and calculate the new oxygen density:

ρnov (O2) = 1.5 * 10 ^ 5 * 32: (8.314 * 273);

ρnov (O2) = 48 * 10 ^ 5: 2269.722;

ρnov (O2) = 2.115 * 10 ^ 3 g / m3 = 2.115 kg / m3.

Answer: 2.115 kg / m3.