Arigid cylinder contains a sample of gas at stp. what is the pressure of this gas after the sample is heated to 410 k?
(1) 1.0 atm (3) 0.67 atm
(2) 0.50 atm (4) 1.5 atm

(4) 1.5 atm

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

where,

= initial pressure of gas at STP= 1 atm

= final pressure of gas = ?

= initial volume of gas at STP = V L

= final volume of gas = V L

= initial temperature of gas at STP= 273K

= final temperature of gas = 410 K

Now put all the given values in the above equation, we get the final pressure of gas.

Therefore, the pressure of gas will be 1.50 atm.

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2