Answer:
Molar mass of the unknown gas is 8.96g/mol
Explanation:
Hello,
According to Graham's law of diffusion, its states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular mass
R = k (1/√(M))
R = rate of diffusion
M = molecular mass
R₁ / R₂ = √(M₂ / M₁)
R₁ = nitrogen = 68.3s
R₂ = unknown gas = 85.6s
M₂ = molecular mass of the unknown gas
M₁ = molecular mass of nitrogen = 14g/mol
68.3 / 85.6 = (√M₂ / 14)
0.8 = (√M₂ / 14)
Take square of both sides
0.8² = M₂ / 14
M₂ = 14 × 0.64
M₂ = 8.96g/mol
The molar mass of the unknown gas is 8.96g/mol
10 hectometers
One hectometer is 100 meters in length already, so 10 is 1000
Answer:
solid
Explanation:
liquid can't take the shape of the container because it flows freely and it doesn't have a definite shape and it has space between it e.g water
gas also doesn't shape and e. g air
but solid takes a definite shape because it doesn't have space in between of
IV: type of liquid used to water the plant (coca-cola, lemonade, water)
DV: height of growth
Control: time grown, same temperature and location
No, a burning tree would not be an example of a plasma that occurs in nature. A burning tree would only be an ordinary neutral gas. Plasma is hot ionized gas that has the same amount of <span>positively charged ions and negatively charged electrons.</span>