Questions by RussTaverner

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1 answer 5 views

Consider the reaction of hydrogen gas (H2) and iodine gas (I2) to form hydrogen iodide (HI) at a certain temperature. If the initial concentrations of hydrogen and iodine are [H2] = 0.5 M and [I2] = 0.3 M, and the equilibrium concentration of hydrogen iodide is [HI] = 0.1 M, what is the value of the reaction quotient (Qc) for this reaction at this temperature?

asked 2 days ago in Chemical thermodynamics

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1 answer 50 views

Question: A student wants to quantify the amount of iron (Fe) in a water sample using coulometry. The sample has a mass of 50.0 g and contains iron in the form of Fe(II) ions. The student sets up the electrochemical cell and begins the oxidation reaction, which requires a current of 16.0 A for 1200 s. What is the concentration of Fe(II) ions in the water sample in mol/L?

asked 6 days ago in Analytical Chemistry

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1 answer 8 views

Assuming you have a mixture of ethanol and water, design a distillation column that can achieve a 95% purity of ethanol in the distillate using the minimum number of plates possible. The feed to the column contains 40% ethanol and 60% water, and the distillate and bottoms products need to be at least 95% pure. The column operates at atmospheric pressure and the feed rate is 100 kg/hr. Also, determine the reflux ratio required to achieve this separation.

asked Jan 22 in Chemical engineering

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1 answer 23 views

What is the main criticism of discursive psychology's focus on language and social interaction?

asked Jan 16 in Psychology

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1 answer 21 views

How do social-cognitive theories explain personality?

asked Jan 15 in Psychology

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1 answer 7 views

Each cell and every living thing requires what?

asked Dec 30, 2024 in Science

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