Questions by Barney65731

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1 answer 72 views

What is the reaction quotient (Qc) of the chemical reaction 2H2 + O2 → 2H2O at a temperature of 25°C given that the initial concentration of H2 is 0.5M, initial concentration of O2 is 0.2M, and initial concentration of H2O is 0M?

asked Feb 22 in Chemical thermodynamics

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1 answer 90 views

How does the concentration of adsorbate affect the efficiency of activated carbon in removing pollutants from water?

asked Feb 18 in Surface Chemistry

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1 answer 66 views

What is the bond order of nitrogen molecule, N2?

asked Feb 18 in Chemical bonding

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1 answer 79 views

What is the equilibrium constant for the reaction between nitrogen gas and hydrogen gas to form ammonia gas at 500°C given that the equilibrium concentrations are [N2] = 0.25 M, [H2] = 0.20 M and [NH3] = 0.10 M?

asked Feb 17 in Chemical equilibrium

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1 answer 89 views

What is the mechanism by which sunscreen agents protect human skin against the harmful effects of ultraviolet radiation, and how can their photochemical properties be optimized to enhance their effectiveness?

asked Feb 14 in PhotoChemistry

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1 answer 167 views

How does the change in concentration of the reactants in a second-order reaction affect the reaction rate?

asked Feb 13 in Chemical kinetics

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1 answer 92 views

How can inadequate emphasis on chemical reactions and equations affect a student's understanding of chemistry concepts, and what steps can be taken to improve this emphasis in the classroom?

asked Feb 5 in Chemical education

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1 answer 137 views

What is the structure and preparation of 1-methoxy-2-propanol? Illustrate the reaction involved and explain how the solvent's properties change with the addition of the ether functional group.

asked Jan 30 in Organic Chemistry

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1 answer 140 views

What are some effective study strategies that can help a chemistry student better understand complex chemical concepts, such as spectroscopy or thermodynamics?

asked Jan 30 in Chemical education

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1 answer 125 views

A chemistry student wants to find out the effect on the equilibrium position when the volume of a reaction mixture is changed. They have an equilibrium mixture of hydrogen and iodine gases forming hydrogen iodide gas according to the equation:$$H_2 (g) + I_2 (g) \leftrightharpoons 2HI (g)$$At 298 K, the equilibrium constant for this reaction is 54.3. Initially, the reaction mixture contains 0.5 moles of hydrogen gas, 0.5 moles of iodine gas, and 0 moles of hydrogen iodide gas in a container of volume 2L. If the volume is reduced to 1L while maintaining the temperature at 298 K, what wi

asked Jan 22 in Chemical equilibrium

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1 answer 122 views

How do the coordination chemistry principles of chelation therapy contribute to the removal of toxic metal ions from the human body?

asked Jan 22 in Coordination Chemistry

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1 answer 107 views

Why is the social learning theory of aggression important to psychology?

asked Jan 20 in Psychology

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1 answer 55 views

According to the opponent-colour theory, what is the biological explanation for colour blindness?

asked Jan 17 in Psychology

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1 answer 82 views

According to attachment theory, why do infant-caregiver relationships have lifelong implications?

asked Jan 17 in Psychology

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1 answer 55 views

What is the Tend and Befriend theory?

asked Jan 16 in Psychology

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1 answer 145 views

According to the humanistic psychology, why do we have a need for self-actualisation?

asked Jan 16 in Psychology

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1 answer 133 views

What is supervised learning in AI?

asked Jan 15 in Psychology

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1 answer 81 views

What is the cognitive theory of personality?

asked Jan 15 in Psychology

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1 answer 98 views

What is the meaning of dignity therapy?

asked Jan 15 in Psychology

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1 answer 104 views

What is motivation theory?

asked Jan 15 in Psychology

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