Recent activity by DaniPflaum9

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Calculate the enthalpy change of the isomerization of but-2-ene to 2-methylpropene given the standard enthalpy of formation of but-2-ene is -20.4 kJ/mol and that of 2-methylpropene is -27.0 kJ/mol. The reaction is carried out at constant pressure and 298 K.

answered Jan 23 in ThermoChemistry

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A chemistry student needs to calculate the enthalpy of adsorption for NH3 gas onto a silica gel adsorbent. The mass of silica gel used is 5.00g and the initial temperature of the system is 298K. The student also measures the equilibrium pressure of the NH3 gas at 298K to be 0.222atm. To carry out the experiment, the student passes NH3 gas over the silica gel and waits until it reaches equilibrium. The temperature of the system is then measured to be 305K. Using this information, what is the enthalpy of adsorption of NH3 onto the silica gel adsorbent in kJ/mol?

answered Jan 22 in ThermoChemistry

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When did Pearson's correlation coefficient first get introduced?

asked Jan 20 in Psychology

1 answer 7 views

What is the significance of oral tradition in indigenous psychology?

asked Jan 20 in Psychology

1 answer 8 views

When evaluating the face validity of a theory, what needs to be considered?

asked Jan 16 in Psychology

1 answer 6 views

What is the role of a hypothesis in research design?

answered Jan 15 in Psychology

1 answer 32 views

Where is the food stored before being mixed with the chyme?

asked Jan 8 in Science

1 answer 26 views

What structure is an organelle that contains enzymes that break down and digest unneeded cellular components?

asked Jan 7 in Science

1 answer 19 views

What is the term for how the air feels at its temperature and humidity

asked Jan 7 in Science

1 answer 18 views

What do you call the unhealthy synthetic lipids created when unsaturated fatty acids are artificially manufactured to have straight chains?

answered Jan 6 in Science

1 answer 20 views

What do waves deposit in relatively quiet areas along a shore?

asked Jan 6 in Science

1 answer 23 views

What are the two main divisions of the human nervous system?

answered Jan 6 in Science

1 answer 55 views

What are organisms that eat just one type of food?

answered Jan 3 in Science

1 answer 22 views

Production of abnormal white blood cells occurs in what cancer, which is the most common form in children?

answered Dec 31, 2024 in Science

1 answer 19 views

Olfactory, optic, and vestibulocochlear nerves are related to what type of function?

asked Dec 31, 2024 in Science

1 answer 35 views

In what season are temperature inversions more common?

answered Dec 31, 2024 in Science

1 answer 9 views

Dermal tissue covers the outside of a plant in a single layer of cells called what?

asked Dec 30, 2024 in Science

1 answer 17 views

What do you call a mixture of two or more substances in which dissolved particles are distributed evenly throughout?

answered Dec 28, 2024 in Science

1 answer 24 views

As blood glucose levels rise what is released from the pancreas?

answered Dec 27, 2024 in Science

1 answer 9 views

In moss, what becomes elongated to elevate the capsule to enhance spore dispersal?

answered Dec 27, 2024 in Science

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