Answer:
pH= 9.2
Explanation:
Henderson hasselbach equation
pKa= log Ka= log (4.9 x 10^-10)=9.3
pH= 9.2
Ammonium perchlorate (NH4ClO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitroge
n gas (N2), chlorine gas (Cl2), oxygen gas (O2), water (H2O), and a great deal of energy. What mass of nitrogen gas is produced by the reaction of 9 gr of ammonium perchlorate? Round your answer to significant digits.
1 answer:
Answer:
1.08 grams of nitrogen
Explanation:
Thermally ammonium perchlorate dissociate as shown in figure.
Thus as per equation two moles of ammonium perchlorate will give four moles of water, two moles of oxygen, one mole of chlorine and one mole of nitrogen,
The molar mass of ammonium perchlorate = 117.5g/mol
Two moles of ammonium perchlorate = 2X 117.5 = 234 g
The molar mass of nitrogen = 28g
thus 234 grams of ammonium perchlorate will give 28 grams of nitrogen
Hence 9 grams of ammonium perchlorate will give 1.08 grams of nitrogen
You might be interested in
Answer : The mass of is, 555.028 grams
Explanation :
First er have to calculate the concentration of .
Now we have to calculate the concentration of .
The given balanced chemical reaction is,
Initial conc. 1.51 0 0
At eqm. conc. (1.51-x) (x) (x)
The expression for equilibrium constant for this reaction will be,
Now put all the given values in this expression, we get :
By solving the term 'x', we get :
x = 1.365 M
Concentration of = x M = 1.365 M
Now we have to calculate the moles of .
Now we have to calculate the mass of .
Molar mass of = 76 g/mole
Therefore, the mass of is, 555.028 grams