Which of the changes listed below has no
effect on the equilibrium for the following reversible
reaction?
PbI 2( s) Pb
2+( aq) + 2 I -( aq)
increase [Pb2+] |
||
decrease [I-] |
||
add solid NaCl |
||
add solid AgNO3 |
||
add solid PbI2 |
PbI2(s) <=> Pb2+(aq) + 2 I-(aq)
Add solid AgNO3 , add solid PbI2 , will not affect the equilibrium.
While NaCl after dissolving it will produce Cl- which will react with the Pb2+ and form PbCl2 and equilibrium is affected.
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Which of the changes listed below has no effect on the equilibrium for the following reversible reaction?...
Which of the changes listed below will shift the equilibrium to
the left for the following reversible reaction
in an aqueous solution?
NH 4OH( aq) NH
4+( aq) + OH -(
aq)
increase [NH4OH]
add solid NH4Cl
add solid NaCl
decrease pH
add hydrochloric acid
Which of the changes listed below will shift the equilibrium to
the right for the following reversible
reaction?
SrCO 3( s) Sr
2+( aq) + CO 32-(
aq)
increase [Sr2+]
increase [CO32-]
add solid Sr(NO3)2
add solid SrCO3
none of the above
Which of the changes listed has no effect on
the equilibrium for the following reversible reaction?
CH 4( g) + H 2O( g) +
heat CO( g)
+ 3 H 2( g)
decrease temperature
increase volume
add argon gas
decrease [H2]
increase [H2O]
15. Which of the changes listed will shift the equilibrium to the left for the following reversible reaction? 2 NO(g) + 2 CO(g) N2(g) + 2 CO2(g) + heat add krypton gas increase [CO] decrease volume increase temperature decrease [CO2]
16. Which of the changes listed will shift the equilibrium to the left for the following reversible reaction? CO(g) + H2O(g) CO2(g) + H2(g) + heat add a catalyst decrease [CO2] increase temperature increase [H2O] decrease volume
Consider the equilibrium of PbCl2(s) in water: PbCl2(s) Pb2+(aq) + 2Cl-(aq) What is the effect of adding NaCl(aq) to the equilibrium solution? The sodium ion reduces the Pb2+ to Pb(s). PbCl2 solubility increases due to the common-ion effect. PbNa2(s) precipitates. The NaCl(aq) has no effect on the system. PbCl2(s) precipitates until equilibrium is reestablished.
1) Determine the effect of each of the following changes on the equilibrium mixture for the following reaction: N2(g) + O2(g) + 90.2 kJ + 2NO(g) Circle an answer for each change. a. Increasing the temperature Shift to reactants No change Shift to products b. Adding a catalyst Shift to reactants No change Shift to products c. Removing nitrogen monoxide gas Shift to reactants No change Shift to products d. Decreasing the volume of the container Shift to reactants No...
CHEM 2A Class Pack F18 4. Predict which way the equilibrium will shift for each of the following changes: Mg(OH)2 (s) + Mg2+ (aq) + 20H" (aq) I. increase [Mg] ii. increase (OH) ii. add KOH iv. add solid Mg(OH)2 v. decrease [Mg] vi. decrease pH vii. add MgCl2 viii. add catalyst ix 4b. Which of the changes above decreases the production of hydroxide ions? 5. Which of the following will increase the amount of calcium phosphate? Cas(PO4)2 (s) +...
We are given the equilibrium system: PbSO4 (s) + 2I- + heat <----> PbI2 (s) + SO4(2-)(aq) if we add the following substances, which way will the reaction shift and why? 1. add NaI solution 2. add AgNO3 solution 3. add Ba(NO3)2 solution 4. add Na2SO4 solution
QUESTION 1 Which of the following is an example of a precipitation reaction? 2 Na (s) + Cl2 (g) → 2 NaCl (s) a. b. 12 (9) ► 12 (5) c. NaOH (aq) + HCl (aq) – NaCl(aq) + H20 (1) Pb(NO3)2 (aq) + 2KI (aq) – 2KNO3(aq) + PbI2 (s) d. LECTION Chek Chek Sue and submit to s u bmit Click Savel Anders to save all answer