A TECHNICION PLAES 0.50 MOL OF NITROGEN MONOXIDE GAS AND 0.20 MOL IF CHLORINE GAS IN A 1.00L SEALED CONTAINER AT 100 DEGREES CELSUIS. THE FOLLOWING EQUALIBRIUM IS ESTABLISHED AT 4.5 MIN.
2NO(g) + Cl2(g) --->2NOCK(g)
the arrow is supposed to be meant as forward and reverse
THE TECHNICION DETERMIBES THAT AT EQUALIBRIUM THERE ARE 0.30 MOL OF NOCL, 0.20 mol of nitrogen monoxide and 0.050 mol of chlorine gas.
question 1
calculate the percent yeild
question 2
calculate the equalibrium constant
Posted 6 years ago by Veronica in Chemistry 30 | 1 answers
#equilibrium
assuming this is a quanatiative reaction
the reaction is:
NaSO4(aq) + CaCl2(aq) --> CaSO4(s) + NaCl(aq)
0.50mol/L of sodium sulfate solution is meaured and put into 4 150ml beakers and 4 different volumes of 0.50mol/L of calcium chloride solution are prepared in a graduated cylinder. the caclium chloride will be added to the sodium solfate solution which is in the beaker and stirred.
find the limiting and excess reagents for each trial
trial | volume of 0.50mol/L of Na2SO4(aq) (mL) | Volume of 0.50mol/L CaCl2(aq) (mL) |
1) | 50 | 25
2) | 50 | 50
3) | 50 | 75
4) | 50 | 100
Posted 6 years ago by Veronica in Chemistry 30 | 1 answers
#equilibrium
sour gas H2S(g) can establish the following equalibrium system under certain conditions.
note that S2(g) is a violet coloured gas. both sour gas and hydrogen gas are colourless
2H2S(g) ---> 2H2(g) + S2(g)
state the effect each of the following stressers will have on this system in terms of the colour of the system: darker violet, lighter violet, or no colour change to the colour of the system.
Posted 6 years ago by Veronica in Chemistry 30 | 1 answers
#equilibrium
THE FOLLOWING SYSTEM WAS HEATED
H2(g) + I2(g) + 53kJ ---> 2HI(g)
identify the effect of the temperature increase on the concentation of HI and on Kc of this system.
choose either it decreases or increases for both
Concentation of HI=
Kc=
question 2
consider the following equalibrium
BaS(s)--> Ba2+(aq) + S2-(aq)
when Ba(NO3)2(aq) is added to this solution the equalibirum shifts to the ________ and the concentration of the sulfide ions___________
choose either right or left for the shift
and choose decrease or increase for the concentration of ions
P.S THE ARROWS ARE SUPPOSED TO BE MEANT AS REVERSE AND FORWARD
Posted 6 years ago by Veronica in Chemistry 30 | 1 answers
#equilibrium
consider the following
CO(g) + H2O(g)---> CO2(g) + H2(g) kc= 5.0
at equalibrium a 2.0 L container was found to contain 0.20 mol of CO2(g) , 0.30 mol of H2O(g) and 0.90 mol of H2(g).
The equalibirum amount of carbon dioxide is
question 2
4HCl(g) + O2(g) ---> 2H2O(g) + 2Cl2(g) kc= 357
An equalibirum mixture of the above system was found to contain the following concentratins: HCl(g)= 0.35mol/L, O2(g)= 0.078 mol/L and H2O(g)= 1.2mol/L. the equalibirum concentration of Cl2(g) is?
Posted 6 years ago by Veronica in Chemistry 30 | 1 answers
#equilibrium
A TECHNICIAN PLACES 3.0 mol OF SULFUR TRIOXIDE IN A GAS SEALED 500 mL CONTAINER AND ALLOWED THE REACTION TO ESTABLISH THE FOLLOWING EQUALIBRIUM
2SO3(g) ---> 2SO2(g) + O2(g)
P.S THE ARROW IS SUPPOSED TO BE A REVERSE AND FORWARD REACTION SYMBOL.
AT EQUALIBRIUM THE SYSTEM WAS DETERMINED TO CONTAIN 0.95 MOL OF OXYGEN GAS.
WHAT IS THE PERCENT YIELD?
Posted 6 years ago by gurleenm in Chemistry 30 | 1 answers
#equilibrium
determine the value of theta, an angle in standard position, where $\sin$sin theta= -1/2 and tan theta = $\sqrt{3}\div3$√3÷3 , $0^{\circ}\le theta<360^{\circ}$0?≤theta<360?
Posted 6 years ago by mmanzaar in Math 20-1 | 1 answers
#trigonometry
Write a simplified expression in terms c, for the area of the given triangle.
c-1/c^2-c-12
c+3/c^2-5c+4
Posted 6 years ago by danikam in Math 20-1 | 0 answers
#rational expressions
Write a balanced equation for the formation of copper(II) oxide at standard state. Include the enthalpy change as an energy term in the balanced equation.
Write a balanced equation for the simple decomposition of iron(II) oxide at standard state. Include the enthalpy change as an energy term in the balanced equation.
Posted 6 years ago by gurleenm in Chemistry 30 | 1 answers
#thermochemistry
question 1.
Calculate the enthalpy of reaction for the reaction of nitrogen dioxide with water represented by the following equation:
3 NO2(g) + H2O(l) →2 HNO3(aq) + NO(g) ?rH=?
questiion 2
Nitrogen monoxide gas, which is used to treat some pulmonary diseases, is transported in pressurized gas cylinders. Nitrogen monoxide gas is produced by reacting ammonia gas and oxygen gas, as represented by the following equation. 4 NH3(g) + 5 O2 (g)→ 4 NO(g) + 6 H2O(g)
Calculate the standard enthalpy of reaction for the above equation.
Posted 6 years ago by gurleenm in Chemistry 30 | 1 answers
#thermochemistry