Answer:
mass = 2.65 [nearest hundredth].
Explanation:
Mass = Density / Volume
mass = 1000 / 376.8
mass = 2.653927813163.. ≈ 2.65
It is a chemical change<span> because there is a breaking of an ionic bond between </span>
We jus did this in school and the reason gases spread quickly is because of diffusion when the particles spread because of the wind
Answer:
Formula Weight of gas sample = 20.1 g/mole => Neon (Ne)
Explanation:
Use Ideal Gas Law formula to determine formula weight and compare to formula weights of answer choices.
PV = nRT = (mass/fwt)RT => fwt = (mass/Volume)RT = Density x R x T
Density = 0.900 grams/L
R = 0.08206 L·atm/mole·K
T = 0.00°C = 273Kfwt = (0.900g/L)(0.08206L·atm/mole·K )(273K)
= 20.1 g/mol => Neon (Ne)