Questions by Maryellen94N

0 votes

1 answer 29 views

How does changing the pH affect the formation of the complex ion Cu(NH3)4 2+, when copper(II) sulfate and excess ammonia are mixed together? How can the equilibrium constant (Kc) be calculated for this reaction at different pH values?

asked 2 days ago in Chemical equilibrium

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1 answer 64 views

What is the concentration of copper sulfate in a solution that has an absorbance of 0.332 at a wavelength of 630 nm, given that the molar absorptivity of copper sulfate is 8.8 x 10^3 L/(mol cm)?

asked 6 days ago in Analytical Chemistry

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1 answer 41 views

Calculate the electronegativity difference between chlorine (Cl) and sodium (Na) atoms, and determine the type of bond that would form between them.

asked Jan 23 in Chemical bonding

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1 answer 45 views

According to the cognitive-behavioural model, what is the best way to treat phobias?

asked Jan 20 in Psychology

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0 answers 19 views

When was the cognitive-behavioural model of pain management first proposed?

asked Jan 16 in Psychology

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1 answer 17 views

What is the difference between a correlational study and an experiment?

asked Jan 15 in Psychology

0 votes

1 answer 25 views

What is the main idea of humanistic psychology?

asked Jan 14 in Psychology

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1 answer 25 views

Who is known for their theory of cognitive development?

asked Jan 10 in Psychology

0 votes

1 answer 21 views

Which is the final step of cell division?

asked Jan 8 in Science

0 votes

1 answer 32 views

What is an alloy of copper and tin?

asked Jan 6 in Science

0 votes

1 answer 46 views

What chemical reaction is the opposite of oxidation?

asked Jan 6 in Science

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