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3 years ago

Why was the clean air act of 1990 so important and how specifically did it change what factors were doing?

1 answer:

8 0

The clean air act of 1990 was important because it helped reduce pollution and keep the enviornment safe. The act organized the idea's of 'safe' in regards to the ozone layer and also the air (generally). This meant that the amount of acid rainfall was controlled. It set rules and policies regarding polluting. Basically, people needed to wake up and think about the enviornment. Companies, people, and even communities were all now responsible for keeping what they breathe (air) clean.

Does this explain it pretty well? If not, please feel free to comment! Thanks for being part of Brainly. :)

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1.5 mol sample he occupies a volume of 2.5 L at a pressure of 14.7 atm what will be the pressure of a 1.5 mol sample of h2 gas u

Sergio039 [100]

Answer:

Under the same conditions, the pressure of a 1.5 mol H2 sample is 14.7 atm

Explanation:

Step 1: Data given

Number of moles He = 1.5 moles

Volume = 2.5 L

Pressure of the He sample = 14.7 atm

Step 2: Calculate pressure of H2 gas

p(He) * V(He) = n(He) *R*T

⇒Pressure of Helium gas = 14.7 atm

⇒ Volume of the helium sample = 2.5L

⇒ The number of moles He = 1.5 moles

⇒R = the gas constant = 0.08206 L*atm/mol*K

⇒T = The temperature

p(H2) * V(H2) = n(H2) *R*T

Since the conditions are the same:

-Volume of both samples is 2.5L

- Temperature for both is the same

- the gas constant for both is the same (constant)

- The number of moles for both samples is 1.5 moles

Since all the factor are the same, the pressure will also be the same = 14.7 atm

⇒ Volume of the h2 sample = 2.5L

⇒ The number of moles H2 = 1.5 moles

⇒R = the gas constant = 0.08206 L*atm/mol*K

⇒T = The temperature = same temperature

⇒Pressure of H2 gas = 14.7 atm

Under the same conditions, the pressure of a 1.5 mol H2 sample is 14.7 atm

5 0

4 years ago

Rainforests are principally responsible for global oxygen turnover true or false

klasskru [66]

False.....................................

3 0

3 years ago

Read 2 more answers

One city is located north of the equator and experiences average rainfall and warm temperatures. Another city is located exactly

antoniya [11.8K]

B I think ..........................

3 0

4 years ago

Why Aluminium Oxide has higher melting point than Alumunium Chloride? Try to mentioned about ionic compound.

Sidana [21]

Answer:

Aluminium oxide has higher melting point than aluminium chloride because there nay be some impurities in the oxide which affects the intermolecular force of attraction

4 0

4 years ago

An aqueous solution of acetic acid is found to have the following equilibrium concentrations at 25 C:

yarga [219]

Answer: 1.79 x 10^-5

Explanation: The equilibrium constant of a reaction can be calculated from the quotient of the concentrations of the products over the concentrations of the reactants, with each termed raised to their respective stoichometric coefficients.

For acetic acid, this equilibrium expression is:

$Kc=\frac{[H+] [CH3COO-]}{[CH3COOH]}$

Replacing the equilibrium concentrations given by the exercise into the expression above, the equilibrium constant, Kc will be obtained and it is found to be equal to 1.79 x 10^-5.

8 0

3 years ago

Read 2 more answers