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Inorganic Chemistry
Consider the reaction
2H3PO4→P2O5+3H2O
Using the information in the following table, calculate the average rate of formation of P2O5 between 10.0 and 40.0 s.
Time (s) 0 10.0 20.0 30.0 40.0 50.0
[P2O5] (M)0 2.30×10−3 5.30×10−3 7.10×10−3 8.30×10−3 8.90×10−3
2H3PO4→P2O5+3H2O
Using the information in the following table, calculate the average rate of formation of P2O5 between 10.0 and 40.0 s.
Time (s) 0 10.0 20.0 30.0 40.0 50.0
[P2O5] (M)0 2.30×10−3 5.30×10−3 7.10×10−3 8.30×10−3 8.90×10−3
Inorganic Chemistry
Consider the following half reactions and their standard reduction potential values to answer the following questions.
Cu2+ (aq) + e- Cu+ (aq) E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V
iii) Calculate the value of E°cell.
iv) Calculate the value ΔG°
v) What is the value of Kc at 25°C?
Cu2+ (aq) + e- Cu+ (aq) E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V
iii) Calculate the value of E°cell.
iv) Calculate the value ΔG°
v) What is the value of Kc at 25°C?
Inorganic Chemistry
Consider the following half reactions and their standard reduction potential values to answer the following questions.
Cu2+ (aq) + e- Cu+ (aq)E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V
i) State which reaction occurs at the anode and which at the cathode. [2 marks]
ii) Write the overall cell reaction. [2 marks]
iii) Calculate the value of E°cell. [2 marks]
iv) Calculate the value ΔG° [2 marks]
v) What is the value of Kc at 25°C?
Cu2+ (aq) + e- Cu+ (aq)E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V
i) State which reaction occurs at the anode and which at the cathode. [2 marks]
ii) Write the overall cell reaction. [2 marks]
iii) Calculate the value of E°cell. [2 marks]
iv) Calculate the value ΔG° [2 marks]
v) What is the value of Kc at 25°C?
Inorganic Chemistry
A 20 tablet sample of saccharin was treated with 20.00 ml of 0 08 M of AgNO3. After removal of the solid , titration of the filtrate and washings required 2.81 ml of 0.05 M KSCN. Calculate the average number of milligrams of saccharin (205.17 g/mol) in each tablet.
Inorganic Chemistry
C6H4O2 to C4O2 How many moles is in 1.36
Inorganic Chemistry
Predict whether these complexes would be labile or inert and explain your choices. The magnetic moment is given in Bohr magnetons (µB) after each complex. Ammonium oxopentachlorochromate(V) 1.82 Potassium hexaiodomanganate(IV) 3.82 Potassium hexacyanoferrate(III) 2.40 Hexammineiron(II) chloride
Inorganic Chemistry
To neutralize 25 cm3 of 0,20 M KOH you need: a) 25 cm3 of 0,40 M hydrochloric acid b) 20 cm3 of 0,25 M hydrochloric acid c) 50 cm3 of 0,10 M hydrochloric acid d) 25 cm3 of 0,10 M hydrochloric acid e) none
Inorganic Chemistry
Features of interest spider diagram and an essay writing
Draw the Phase I of Feature Interest type spider diagram (HCLO2)
Draw the Phase I of Feature Interest type spider diagram (HCLO2)
Inorganic Chemistry
Silicon can be made into either a p-type or an n-type extrinsic semiconductor
by chemical doping. These can be combined to make a photovoltaic device,
which converts photons into an electrical current. Explain how this works.
by chemical doping. These can be combined to make a photovoltaic device,
which converts photons into an electrical current. Explain how this works.
Inorganic Chemistry
Consider the following half reactions and their standard reduction potential values to answer the following questions.
Cu2+ (aq) + e- Cu+ (aq) E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V
i) State which reaction occurs at the anode and which at the cathode.
ii) Write the overall cell reaction.
Cu2+ (aq) + e- Cu+ (aq) E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V
i) State which reaction occurs at the anode and which at the cathode.
ii) Write the overall cell reaction.
