Recent activity by IrwinDeBoos5

1 answer 20 views

Calculate the standard enthalpy change for the reaction: 2C2H5OH(l) + 9O2(g) -> 6CO2(g) + 8H2O(l) given that the standard enthalpy of formation for C2H5OH(l) is -278 kJ/mol, for CO2(g) is -394 kJ/mol and for H2O(l) is -286 kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 38 views

How can the functional groups present in a given compound be identified using infrared spectroscopy? Provide a detailed explanation of the process and interpretation of the IR spectrum obtained.

asked Jan 29 in Analytical Chemistry

1 answer 39 views

Calculate the bond energy of O2 molecule in kJ/mol, given that the bond energy of O-H is 464 kJ/mol and the bond energy of H-H is 432 kJ/mol.

answered Jan 23 in Chemical reactions

1 answer 57 views

Calculate the amount of heat required to raise the temperature of 50 g of water from 25°C to 100°C, given the specific heat capacity of water is 4.18 J/g°C.

answered Jan 23 in Chemical thermodynamics

1 answer 44 views

A student needs to calculate the heat of mixing for a 50 mL solution containing 0.1 M HCl and 0.1 M NaOH. The temperature of the solution is 25°C and the density is 1 g/mL. The enthalpy of neutralization for HCl and NaOH is -57.3 kJ/mol. Determine the heat of mixing for the solution.

asked Jan 22 in ThermoChemistry

1 answer 36 views

How does the Selective Exposure Theory relate to persuasion?

answered Jan 20 in Psychology

1 answer 54 views

Where does the concept of 'existential guilt' come from?

asked Jan 20 in Psychology

1 answer 25 views

In contrast, how does person-centred theory see emotional difficulties?

answered Jan 20 in Psychology

1 answer 11 views

What is a criticism of the ecological systems theory?

answered Jan 16 in Psychology

1 answer 20 views

Why do we use mental imagery according to cognitive psychology?

answered Jan 15 in Psychology

1 answer 17 views

What is a placebo effect?

answered Jan 13 in Psychology

1 answer 23 views

What is existential psychotherapy?

asked Jan 13 in Psychology

1 answer 23 views

Which organisms get their energy source and carbon source from organic sources?

asked Jan 8 in Science

1 answer 5 views

Where are the two tonsils located?

answered Jan 8 in Science

1 answer 53 views

What two layers is the skin made of?

answered Jan 8 in Science

1 answer 31 views

What is the type of landscape that occurs at higher latitudes than deserts, has short grasses and low bushes, and are dry because they are in continental interiors?

asked Jan 7 in Science

1 answer 34 views

What is the sac-like organ at the end of the esophagus?

answered Jan 7 in Science

1 answer 27 views

Under which process do living things with beneficial traits produce more offspring?

asked Jan 2 in Science

1 answer 45 views

What type of temperatures increase the likelihood of fires?

asked Dec 27, 2024 in Science

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