The density of hydrogen is 8.2×10_5g/cm. Argon is 20 times as dense as hydrogen. Find the density of argon giving your answers in standard from correct to 3sf

1 answer

To find the density of argon, we first need to find the density of hydrogen.

The given density of hydrogen is 8.2×10^(-5) g/cm.

Since argon is 20 times as dense as hydrogen, the density of argon is:

Density of Argon = 20 * Density of Hydrogen
= 20 * 8.2×10^(-5) g/cm

Calculating this value gives us:

Density of Argon = 1.64×10^(-3) g/cm

Rounding this value to three significant figures gives us:

Density of Argon = 0.00164 g/cm³