Recent activity by SummerGorsuc

1 answer 27 views

Calculate the standard enthalpy change (∆H°) for the reaction of the coordination compound [Co(NH3)6]Cl3 (aq) with NaOH (aq) to produce [Co(NH3)6](OH)3 (aq) and NaCl (aq). Given, the standard enthalpy of formation (∆H°f) for [Co(NH3)6]Cl3, [Co(NH3)6](OH)3 and NaCl are -784.8 kJ/mol, -1273.6 kJ/mol and -411.2 kJ/mol, respectively.

answered 2 days ago in Chemical thermodynamics

1 answer 31 views

How does changing the reaction mechanism affect the rate of reaction, and what factors influence the activation energy of a particular reaction?

answered 2 days ago in Chemical kinetics

1 answer 4 views

How does changing the pH of a solution affect the equilibrium position of an acid-base reaction, and what factors influence this effect? Provide examples of acid-base equilibria and their changes in equilibrium position with changes in pH.

answered 2 days ago in Chemical equilibrium

1 answer 4 views

A student wants to analyze the composition of a sample of an unknown metal alloy. They dissolve a 0.500g sample of the alloy in hydrochloric acid to form a solution which is then titrated with sodium hydroxide (NaOH) to neutralize the acid. The volume of the NaOH solution required is 16.50 mL. Assuming the acid reacts with the metal in the alloy according to the formula: M + 2HCl → MCl₂ + H₂, what is the percent composition by mass of Metal M in the alloy?

answered Jan 22 in Analytical Chemistry

1 answer 75 views

A chemistry student wants to determine the effect of adding more reactant or product on the equilibrium position of a chemical reaction. The student has a 0.50 M solution of N2O4 and NO2 at equilibrium at 25°C, with the equation N2O4(g) <--> 2NO2(g). If the student adds more N2O4 to the reaction mixture, what will happen to the equilibrium concentration of NO2? Will it increase, decrease or stay the same? Justify your answer with a chemical equation and relevant calculations.

answered Jan 22 in Chemical equilibrium

1 answer 6 views

According to Erik Erikson's psychosocial theory, what are the stages of development?

asked Jan 20 in Psychology

1 answer 5 views

Who proposed the psychodynamic theory of personality?

asked Jan 15 in Psychology

1 answer 6 views

What are the main themes of existential psychology?

asked Jan 15 in Psychology

1 answer 5 views

How is hypothesis development different in qualitative research?

answered Jan 15 in Psychology

1 answer 23 views

What is the attachment style theory?

asked Jan 13 in Psychology

1 answer 24 views

What was once believed to be the smallest of all particles, as dalton's theory proposed?

answered Jan 8 in Science

1 answer 25 views

What is the process in which a liquid boils and changes to a gas?

asked Jan 7 in Science

1 answer 31 views

What causes light to refract?

answered Jan 6 in Science

1 answer 25 views

Water pollution occurs when chemicals, sewage, trash, or heat enter what?

answered Jan 2 in Science

1 answer 49 views

How does carbon dioxide chemically weather rocks?

answered Dec 30, 2024 in Science

1 answer 42 views

Are scissors simple or compound machines?

asked Dec 30, 2024 in Science

1 answer 20 views

The net effect of aldosterone is to conserve and increase water levels in the plasma by reducing the excretion of what element, and thus water?

asked Dec 30, 2024 in Science

1 answer 17 views

Serious imbalances, cancer and other diseases can result when expression of what goes awry?

asked Dec 27, 2024 in Science

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