A technician placed a 2.5 mol of NO(g) in an empty 2.0 L flask and allowed the contents to establish the following equilibrium.
4NO(g)?2N2O(g)+O2(g)+197kJ
At equilibrium it was determined that there was 0.58 mol of N2O(g) present.
The percent yield of this reaction is Answer %
The equilibrium concentration of NO(g) is Answer mol/L
Posted 7 years ago by maddy_vang in Chemistry 30 | 0 answers
#chemistry 30
In a closed container, a pure sample of nitrosyl bromide, NOBr(g), undergoes a partial decomposition to produce nitrogen monoxide gas and bromine gas at 19°C as represented by the diagram below.
he equilibrium constant is calculated to be Answer
Posted 7 years ago by maddy_vang in Chemistry 30 | 0 answers
#chemistry 30
CO(g)+Cl2(g)?COCl2(g) Kc=6.6×1011
2NOCl(g)?2NO(g)+Cl2(g) Kc=0.080
PCl5(g)?PCl3(g)+Cl2(g) Kc=4.0×10−2
N2(g)+3H2(g)?2NH3(g) Kc=152
When the above equilibriums are arranged in order of their increasing tendency to proceed toward completion, the order is
Posted 7 years ago by maddy_vang in Chemistry 30 | 0 answers
#chemistry 30
A technician placed a 2.5 mol of NO(g) in an empty 2.0 L flask and allowed the contents to establish the following equilibrium.
4NO(g)?2N2O(g)+O2(g)+197kJ
At equilibrium it was determined that there was 0.58 mol of N2O(g) present.
The percent yield of this reaction is Answer
Posted 7 years ago by maddy_vang in Chemistry 30 | 0 answers
#chemistry 30
Consider the following buffer equilibrium.
HCOOH(aq)+H2O(l)?HCOO−(aq)+H3O+(aq)
When a small quantity of NaOH(aq) is added to the above buffer mixture the equilibrium will shift (left/right/no change) and the pH of the equilibrium system will (increase/decrease)
Posted 7 years ago by maddy_vang in Chemistry 30 | 0 answers
#chemistry 30
A technician combined 25 mL of 1.0 mol/L HF(aq) with 25 mL of 1.0 mol/L NaF(aq). The following buffer equilibrium was established.
HF(aq)+H2O(l)?H3O+(aq)+F−(aq)
What would limit the buffering action if a sample of a strong acid was added?
Posted 7 years ago by maddy_vang in Chemistry 30 | 1 answers
#chemistry 30
Pairs of solutions
1.0 mol/L HNO3(aq) and 1.0 mol/L LiOH(aq)
1.0 mol/L HBr(aq) and 1.0 mol/L LiBr(aq)
1.0 mol/L HNO2(aq) and 0.10 mol/L LiNO2(aq)
1.0 mol/L HCO3-(aq) and 1.0 mol/L CO32-(aq)
If each of the pairs of solutions listed above is mixed together in equal volumes, then the pair of solutions that could act as a buffer is numbered
Posted 7 years ago by maddy_vang in Chemistry 30 | 1 answers
#chemistry 30
Which of the arithmetic sequences contain the terms 91? Show work for all and how you solved the sequences.
a. tn= 6+17n
b. 420,417,414,...
c. t1= 4, d= 7
d. 2, 11, 20,...
Posted 7 years ago by gurleenm in Math 20-1 | 1 answers
#arithmetic sequences
Indicate the values of t1 and d as well as the simplified general term, tn.
a) 8,26,44,62
b) 14, 14+p, 14+2p, 14+3p
Posted 7 years ago by gurleenm in Math 20-1 | 3 answers
#arithmetic sequences
Larry likes skeet shooting, where a clay disc is shot into the air, and the participant tries to shoot it as it flies through the air. The discs are released from a firing mechanism that sits at ground level and shoots the disc on average a horizontal distance of 120 m on a parabolic path. On avergae, the skeet hits a height of 37.5 m after travelling a horizontal distance of 45 m.
a. Determine the equation of a function, in standard form, that represents the flight of the clay disc. Leave valuses in fractions.
b. Determine the average maximum height of the skeet by completing the square.
Posted 7 years ago by gurleenm in Math 20-1 | 2 answers
#quadratic functions