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 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
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
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
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
A technician prepares 500mL of a 0.3mol/L NH3 solution
whats the pH of NH3
Posted 7 years ago by spike222 in Chemistry 30 | 1 answers
#chemistry 30 #ph
A technician prepares 500mL of a 0.3mol/L NH3 solution
whats the pH of NH3
Posted 7 years ago by spike222 in Chemistry 30 | 2 answers
#chemistry 30 #ph
a reference gives the molar enthalpy of combustion for methane as -803 kj/mol. what is the minimum mass of methane must be burned to warm 4.00 L of water from 22.4 C to 87.6 C, assuming no heat loss?
Posted 7 years ago by Woodsm in Chemistry 30 | 2 answers
#chemistry 30
How do i write the cell notation for a galvanic cell consiting of an Al electrode place in a 1.0M Al(NO)3(aq) solution and a Ag electrode placed in a 1.0M AgNO3(aq) solution. Write the half-reactions and the net ionic equation for the cell. Calculate the standard cell potential.
Posted 7 years ago by Emslie123 in Chemistry 30 | 1 answers
#electrochemistry #cell notation #half reactions #net ionic equations
The reaction is :
CO + NO2 —> CO2 +NO
the loss of carbon monoxide is -0.00033333 M/min
what is the gain of Carbon Dioxide?
Posted 7 years ago by Alyb2 in Chemistry 30 | 1 answers
#reaction rates #kinetics