Recent activity by SangWestmaco

1 answer 31 views

Determine the molecular geometry and bond angles for the molecule CF4 using the VSEPR theory.

asked Feb 4 in Quantum Chemistry

1 answer 60 views

How can potentiometry be used to determine the concentration of chloride ions in a water sample collected from a lake?

asked Jan 29 in Analytical Chemistry

1 answer 41 views

Calculate the enthalpy change of combustion for the reaction of methane (CH4) when 1.25 moles of methane is completely burnt in excess oxygen gas at standard conditions, given that the enthalpy change of combustion for methane is -890.3 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 37 views

Calculate the enthalpy change (in kJ/mol) for the isomerization reaction of butene-1 to butene-2. Given the standard enthalpy of formation values for butene-1 as -126.3 kJ/mol and butene-2 as -126.0 kJ/mol, and the heat of combustion values for butene-1 as -2670.0 kJ/mol and butene-2 as -2666.0 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 43 views

Assuming that the concentration of Cu2+ ions in a solution is 0.25 M, the concentration of Ag+ ions in another solution is 0.50 M, and the standard reduction potential of Cu2+(aq) + 2e- → Cu(s) is +0.34 V and that of Ag+(aq) + e- → Ag(s) is +0.80 V, calculate the current density when the two solutions are separated by a salt bridge and connected by a wire.

answered Jan 22 in ElectroChemistry

1 answer 26 views

What are the similarities and differences between post-traumatic stress disorder PTSD and acute stress disorder ASD ?

asked Jan 17 in Psychology

1 answer 53 views

What is working memory in psychology?

asked Jan 15 in Psychology

1 answer 44 views

What is sustained attention?

answered Jan 14 in Psychology

1 answer 40 views

Where in the female body does egg production take place?

answered Jan 8 in Science

1 answer 35 views

When heat flows into an object, its thermal energy increases and so does its what?

answered Jan 8 in Science

1 answer 32 views

What element is the most common element in the universe?

answered Jan 6 in Science

1 answer 23 views

What contracts to move food throughout the gastrointestinal tract?

asked Jan 6 in Science

1 answer 52 views

What are the only invertebrates that can fly?

asked Jan 6 in Science

1 answer 31 views

Dialysis is a treatment for failure of what organs?

answered Dec 30, 2024 in Science

1 answer 20 views

As the organism grows more sophisticated, what happens to the process of gene regulation?

asked Dec 30, 2024 in Science

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