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(a)
Interpretation:
The memory unit found in some rechargeable battery has to be found as what and what operating conditions cause this phenomenon to occur have also to be found.
Concept introduction:
Battery: It is a storage device used for the storage of chemical energy and for the transformation of chemical energy into electrical energy.
Rechargeable battery work because they use reaction are reversible, while non-rechargeable battery they use reactions are non-reversible.
Energy density of battery: High specific energy density batteries are attracting growing attention as possible power sources for electronic vehicles.
(b)
Interpretation:
Which batteries are most prone to the memory effect have to be found.
Concept introduction:
Battery: It is a storage device used for the storage of chemical energy and for the transformation of chemical energy into electrical energy.
Rechargeable battery work because they use reaction are reversible, while non-rechargeable battery they use reactions are non-reversible.
Energy density of battery: High specific energy density batteries are attracting growing attention as possible power sources for electronic vehicles.
(c)
Interpretation:
How the memory effect can be repaired has to be found.
Concept introduction:
Battery: It is a storage device used for the storage of chemical energy and for the transformation of chemical energy into electrical energy.
Rechargeable battery work because they use reaction are reversible, while non-rechargeable battery they use reactions are non-reversible.
(d)
Interpretation:
Wheather all batteries benefit from being stored in a cold atmosphere can be agreeable or not has to be found.
Concept introduction:
Battery: It is a storage device used for the storage of chemical energy and for the transformation of chemical energy into electrical energy.
Rechargeable battery work because they use reaction are reversible, while non-rechargeable battery they use reactions are non-reversible.
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Chapter 7 Solutions
Chemistry In Context
- Table 1. Mass calculations for copper electrode. Mass of copper (initial) (g) Mass of copper (final) (g) Mass of copper oxidized (g) 1. Table 2. Record of current (measured in amps) and time (measured in minutes) as they changed throughout the experiment. 0 3 6 9 Complete the following table: Table 3. Summary of observation data. 2.4622 Time Current Time Current Time 24 0.154 12 15 0.153 27 18 0.152 30 21 0.152 33 0.157 0.156 0.155 0.155 Data Analysis: 2.3269 0.135 Total reaction time (s) Average current (A) Volume of H, produced (mL) Barometric pressure (kPa) Partial pressure of water vapour (kPa) Partial pressure of H₂ al produced (kPa) Temperature (°C) Current Time Current 0.151 36 0.151 39 0.150 42 0.149 45 50.00 101.40 3.19 25.00 0.148 0.148 0.147 0.146 Show how you calculated the partial pressure of the hydrogen gas that was produced. 2. Determine the number of mols of H₂ gas produced using the ideal gas law. R = 8.314 kPa L mol-¹K-¹ (1) (2) Based on the anode information (3) (1)…arrow_forwardHow are impurities separated from bauxite ore to get pure alumina?arrow_forwardBb.30. What will prevent iron from interfering with the aluminum measurements?arrow_forward
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