4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O ∆Hrxn = -906 kJ A)
Calculate the heat (in kJ) associated with the complete reaction of
0.127 Kg of NH3. B) What mass of O2 (g) is required to evolve 4605
kJ of energy
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6
H2O(g)
A scientist adds 7.00 atm of NH3(g) and 8.00 atm of
O2(g) to a 5.0 L container at 473 K. What will the
pressure of H2O(g) be if the reaction goes to
completion? Assume that the temperature remains constant.
Select one:
a. 6.40 atm
b. 9.60 atm
c. 10.5 atm
d. 0.90 atm
e. 15.0 atm
Consider this reaction: 2 C2H6 + 7
O2 → 4 CO2 + 6 H2O
(a) How many grams of oxygen are required to completely react
with (burn) 100.0 g of ethane?
(b) If 55.0 g of ethane is mixed with 55.0 gram of oxygen, and
the mixture then reacts, how many grams of water will be
formed?
1. Consider this reaction: 2 C2H2 + 5 O2 ? 4 CO2 + 2 H2O If 222
grams of C2H2 reacts completely in this reaction: What mass of O2
will be required? What mass of CO2 will be formed?
2. What is the molarity of a solution formed by
dissolving 58.6 grams of KClO3 in enough water to make a solution
with a volume of 750.0 milliliters?
4. A solution of 6.0 M NaOH with a volume of
250 milliliters...
Ammonia is burned to form nitric oxide in the following
reaction: NH3 + O2 NO + H2O
(i) Determine if the above stoichiometric equation is balanced
and calculate the ratio of kmol NH3 react/kmol NO formed
(ii) If 25% excess O2 is fed to a continuous reactor at a rate
of 250 kmol O2/h, calculate the rate of ammonia fed to a reactor in
kmol/min.
(iii) If the above reaction is carried out in a batch reaction
with 90...
Consider the following equilibrium.
CS2(g) + 3 O2(g) equilibrium reaction arrow CO2(g) + 2 SO2(g)
If the reaction is started in a container with 5.59 atm CS2 and
13.3 atm O2, what is Kp if the partial pressure of CO2 is 3.76 atm
at equilibrium? (There is no change in temperature and the initial
partial pressures of the products are equal to 0.)
The equilibrium constant, Kc , for the following reaction is
5.10×10-6 at 548 K. NH4Cl(s) NH3(g) + HCl(g) If an equilibrium
mixture of the three compounds in a 6.76 L container at 548 K
contains 3.14 mol of NH4Cl(s) and 0.452 mol of NH3, the number of
moles of HCl present is _________moles.
Consider the balanced chemical reaction shown below.
4 PH3(g) + 8 O2(g) 6 H2O(l) + 1 P4O10(s)
In a certain experiment, 3.382 g of PH3(g) reacts with 8.377 g
of O2(g).
(a) Which is the limiting reactant?
(b) How many grams of H2O(l) form?
(c) How many grams of P4O10(s) form?
(d) How many grams of the excess reactant remains after the
limiting reactant is completely consumed?
At 3748°C, K = 0.093 for the following reaction. N2(g) + O2(g)
equilibrium reaction arrow 2 NO(g) Calculate the concentrations of
all species at equilibrium for each of the following cases. (a) 1.6
g N2 and 3.0 g O2 are mixed in a 1.3-L flask. (b) 2.0 mol pure NO
is placed in a 2.1-L flask.