Unit conversion is a multi-step process, in which division or multiplication by a numeral factor is involved.
Density = 
(given)
Since, 
and
Now, converting to 
:
= 
.
Hence, density is .
A chemical property would be its pH of 2.4.
all others are physical properties and aspect
hope that helps
To be able to answer this item, we assume that the given hydrogen gas is ideal such that we are able to use the Ideal Gas equation,
PV = nRT
At STP, the values of volume, pressure, and temperature are 22.4 L, 1 atm, and 273.15 K. Solving for n,
n = (1 atm x 22.4 L) / (0.0821 L.atm/mol K x 273.15 K)
n = 0.9988 mols
Each mol of hydrogen gas is 2 g.
m = (0.9988 mols) x (2 g/1 mol)
m = 1.9977 g
Density is the quotient of mass and volume,
density = 1.9977 g/ 22400 mL
density = 8.92 x 10^-5 g/mL
The correct answer for this question is D. Define volume, no molecular motion, lowest kinetic energy.
