Answer:
2
Explanation:
The quantity of nitrogen the cylinder contains is 4477.8 g
Pressure is a force exerted in a perpendicular direction in any item.
By ideal gas law
PV = nRT
w = mass
Volume is 20.0 l
Pressure is
The molar mass of nitrogen is 28 g/mol
R is gas constant = 0.0821
Temperature is 28 converted into kelvin that is 301 k
Putting the values
Thus, the mass of nitrogen is 4477.8 g.
Learn more about pressure, here:
Answer : The mass of gas is, 4477.8 g
Solution :
using ideal gas equation,
where,
n = number of moles of gas
w = mass of gas
P = pressure of the gas =
conversion :
T = temperature of the gas =
M = molar mass of gas = 28 g/mole
R = gas constant = 0.0821 Latm/moleK
V = volume of gas = 20 L
Now put all the given values in the above equation, we get the mass of gas.
Therefore, the mass of gas is, 4477.8 g
Answer : The volume of 1 mole of and gases are the same.
Solution: Given,
Moles of = 1 mole
Moles of = 1 mole
Moles of = 2 mole
Formula used for ideal gas is :
P V = n R T
According to the question, the gases are at standard temperature and pressure. So, the volume of gases only depends on the number of moles. This means that the higher the number of moles, higher will be the volume of gas.
The moles of are more than the moles of and . So, the volume of will be more.
And the moles of and are equal. Therefore, their volumes are also equal.
Therefore, the best option is the volume of 1 mole of and gases are the same.
b. hazardous
c. domestic
Answer: Option (b) is the correct answer.
Explanation:
When a substance is used and thrown away which can lead to damage in the environment as it may [produce some toxic or hazardous gases is known as a hazardous waste.
These wastes can be solid, liquid or gaseous.
For example, batteries, kerosene, garden chemicals etc are all hazardous waste.
A domestic waste is a waste thrown by a household which may include paper, vegetable waste, cardboard, yard clippings etc.
Thus, we can conclude that hazardous wastes are solid, liquid, or gas wastes that are toxic, flammable, corrosive, reactive, or radioactive.
635 g
635 g/cm3
634.5 ml
Answer:
JUST B
Explanation:
The mass of 235 cm³ of aluminum, which has a density of 2.70 g/cm³, is calculated to be 634.5 g using the formula Mass = Density × Volume.
To find the mass of a given volume of a substance, you can use the formula: Mass = Density × Volume. In this case, the density of aluminum is given as 2.70 g/cm³ and you need to find the mass of 235 cm³ of aluminum.
Substitute the given values into the formula:
Mass = 2.70 g/cm³ × 235 cm³ = 634.5 g
Therefore, the mass of 235 cm³ of aluminum is 634.5 g.
#SPJ6
a. True
b. False