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1. ### Ammonia reacts with oxygen gas to form nitrogen monoxide and water. ?

Chemical equation given - NH3 + O2 ---> NO + H2O Now, balanced equation 4NH3 + 5O2 ---> 4NO + 6H2O Stoichiometrically, 4 moles NH3 require 5 moles...

1 Answers · Science & Mathematics · 28/10/2020

Calculate the mole fraction of one gas: X N2 = 5.9 mol / (5.9 + 1.3 mol) = 0.819 Partial pressure N2 = 0.819 X 5.0 atm = 4.1 atm Partial pressure O2 = 5.0 - 4.1 = 0.9 atm

1 Answers · Science & Mathematics · 28/10/2020

3. ### A sample of 0.200 moles of nitrogen occupies 0.400 L. Under the same conditions, what number of moles occupies 1.200 L? ?

(0.200 mol) x (1.200 L / 0.400 L) = 0.600 mol So answer A).

1 Answers · Science & Mathematics · 18/10/2020

4. ### How many molecules of nitrogen are needed to react with 1.23g of hydrogen?

N2(g) + 3H2(g) -------------> 2NH3(g) 1 mole of N2 react with 3 moles of H2 6.023*10^23 molecules of N2 react with 3 *6.023*10^23 molecules of H2 1.23 g H2 x ( 1mole H2/2.01588 g H2)= .6106 mole of H2...

3 Answers · Science & Mathematics · 15/10/2020

5. ### Chem help?

(38 cm X 38 cm x 24 cm) = 34656 cm^3 = 34.656 L n = PV / RT = (715 torr) x (34.656 L) / ((62.36367 L torr/K mol) x (21 + 273) K) = 1.3515 mol  Neglecting the volume of the solid products: (1.3515 mol N2) x (20 mol NaN3 / 32 mol...

1 Answers · Science & Mathematics · 11/10/2020

6. ### help with percent yield  question?

It's called the Haber process. 3 H2 + N2 → 2 NH3 Supposing the reaction goes to completion: (21.9 g N2) / (28.01344 g N2/mol) x (2 mol NH3 / 1 mol N2) x (17.03056 g NH3/mol) = 26.6279 g NH3 in theory (26.4 g...

1 Answers · Science & Mathematics · 14/10/2020

7. ### chem help plz?

(1.15 atm) x (-57 + 273) K / (33 + 273) K = 0.81176 atm, the partial pressure of the original N2 at the new temperature P = nRT / V = (8 g N2 / (28.01344 g N2/mol)) x (0.082057366 L atm/K mol) x (-57 + 273) K / (4 L) = 1.265 atm, the partial pressure of the...

1 Answers · Science & Mathematics · 09/10/2020

8. ### Making liquid nitrogen ?

No. Expanding liquid nitrogen is nitrogen gas. What you're talking about is like...

3 Answers · Science & Mathematics · 08/10/2020

9. ### CHEMISTRY HOMEWORK?

...element.  So any isotope of carbon has to have 6 protons and nitrogen has to have 7.  So carbon 14 has 2 more neutrons...

1 Answers · Science & Mathematics · 05/10/2020

10. ### chemistry help?

The first ionization of O removes an electron from a filled 2p orbital resulting in a half-filled 2p subshell. The first ionization of N removes an electron from a half-filled 2p subshell. I'll leave it up...

1 Answers · Science & Mathematics · 25/09/2020