Recent activity by InaLewers025

1 answer 31 views

Determine the standard enthalpy change for the formation of water (H2O) when hydrogen gas (H2) reacts with oxygen gas (O2) according to the balanced equation:2H2(g) + O2(g) → 2H2O(l)Given that the standard enthalpy change of formation for H2O(l) is -285.8 kJ/mol, calculate the amount of heat absorbed or released when 4.50 moles of H2O(l) is formed under standard conditions.

asked 1 day ago in Chemical thermodynamics

1 answer 30 views

Calculate the standard enthalpy change for the reaction:Cu(H2O)62+ (aq) + 4Cl-(aq) → CuCl42- (aq) + 12H2O (l)given the following standard enthalpies of formation:Cu(H2O)62+ (aq): -1846.4 kJ/molCuCl42- (aq): -3599.5 kJ/molH2O (l): -285.8 kJ/molCl- (aq): -167.2 kJ/mol

asked 2 days ago in Chemical thermodynamics

1 answer 22 views

Calculate the standard enthalpy change for the reaction between 50.0 mL of 0.200 M HCl(aq) and 50.0 mL of 0.300 M NaOH(aq) at 25°C. The heat capacity of the calorimeter is 9.60 J/°C and the temperature change observed is 4.00°C. Also, assume that the density of both solutions is 1.00 g/mL and that the heat capacity and density of the final solution are the same as that of water.

asked 2 days ago in Chemical thermodynamics

1 answer 33 views

How does changing the pH of a redox reaction affect the equilibrium position of the reaction, and what factors can influence this effect? Provide an example of a redox reaction and explain how its equilibrium position can be affected by changes in pH.

answered 2 days ago in Chemical equilibrium

1 answer 50 views

Calculate the enthalpy of ionization for the reaction Mg(g) → Mg⁺(g) + e⁻ given that the ionization potential of Mg is 735 kJ/mol and the electron affinity of Mg⁺ is -195 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 20 views

According to terror management theory, how does mortality salience influence gender?

asked Jan 20 in Psychology

1 answer 28 views

Who proposed the theory of moral development?

asked Jan 20 in Psychology

1 answer 6 views

Please list and explain the three types of research designs used in theory evaluation

asked Jan 16 in Psychology

1 answer 18 views

What is the main criticism of the Psychosocial Theory?

answered Jan 13 in Psychology

1 answer 31 views

What system carries messages from sense organs and internal organs to the central nervous system?

asked Jan 7 in Science

1 answer 16 views

What makes up 99 percent of air?

asked Jan 7 in Science

1 answer 18 views

What forms when the dna in the nucleus wraps around proteins?

asked Jan 6 in Science

1 answer 29 views

How does a reduced sweating ability affect elderly people?

answered Dec 30, 2024 in Science

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