Answer:
Q = 87.31cal
Explanation:
Mass = 57.8g
T1 = 17.0°C
T2 = 43.5°C
Specific heat capacity (c) = 0.057cal/g°C
Q = MC∇T
Q = M*C*(T₂ - T₁)
Q = 57.8 * 0.057 * (43.5 - 17.0)
Q = 3.2946 * 26.5
Q = 87.306 cal
Q = 87.31cal
0.050 moles of hydrogen gas are liberated when a given quantity of charge liberates 0.050 moles of lead.
<h3>What amount in moles of hydrogen will be produced?</h3>
The amount in moles of hydrogen produced when the same quantity of electricity is passed through different electrolytes is inversely proportional to the charge on the ions.
The charge on the Lead ion is +2.
The charge on the hydrogen ion is +1.
2 atoms of hydrogen gives one molecule of hydrogen gas.
Hence, equal charge liberates equal amounts in moles of lead and hydrogen gas.
Therefore, 0.050 moles of hydrogen gas are liberated when a given quantity of charge liberates 0.050 moles of lead.
Learn more about electrolytes at: brainly.com/question/1961090
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According to Henry's law, solubility is proportional to the external pressure. Since both cases in the problem have the same temperature, only the pressure varies from 1.0 atm to 2.5 atm. This means that just as the pressure is multiplied by a factor of 2.5, we can multiply the solubility by a factor of 2.5 as well. This gives us 0.041 g/L * 2.5 = 0.1025 g/L.
