Questions by HarrisMcCask

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1 answer 39 views

Calculate the resistance of an electrochemical cell constructed by using a copper electrode in a 1M copper (II) sulfate solution and a zinc electrode in a 1M zinc sulfate solution. The measured potential difference of the cell is 1.45 volts. The area of each electrode is 10cm² and the length of wire connecting the electrodes is 30cm with a cross-sectional area of 1 mm². The conductivity of copper (II) sulfate and zinc sulfate solutions at the given concentration is 98.3% and 89.9% respectively. What is the resistance (in ohms) of the electrochemical cell?

asked 2 days ago in ElectroChemistry

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1 answer 51 views

Calculate the enthalpy change for the combustion of 2 moles of methane gas (CH4) at constant pressure, given that the standard enthalpy of formation (ΔHf) of methane gas is -74.8 kJ/mol. Express your answer in kilojoules (kJ).

asked Jan 23 in Chemical thermodynamics

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1 answer 19 views

What is the role of social psychology in communities?

asked Jan 20 in Psychology

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1 answer 25 views

How do we evaluate the falsifiability of psychodynamic theories?

asked Jan 16 in Psychology

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1 answer 22 views

What kind of harm does a corrosive substance cause?

asked Jan 7 in Science

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1 answer 25 views

What are the largest known proteins called?

asked Dec 28, 2024 in Science

0 votes

1 answer 42 views

What type of organisms have internal clocks that regulate cyclic processes?

asked Dec 27, 2024 in Science

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