Recent activity by SimaCouture

1 answer 19 views

How can the surface properties of a biodegradable polymer scaffold be modified to enhance its biocompatibility with human cells for more efficient tissue engineering?

asked 20 hours ago in Surface Chemistry

1 answer 24 views

How can the stimulus-responsive behavior of a polymer-based smart material be optimized for a specific application, such as drug delivery or sensing?

asked 21 hours ago in Polymer Chemistry

1 answer 46 views

Calculate the enthalpy change (ΔH) for the dissolution of 10 grams of NaOH in 100 mL of water, given that the final temperature after mixing is 28°C and the initial temperature of water was 25°C. The specific heat capacity of water is 4.18 J/g°C. The molar mass of NaOH is 40.00 g/mol and the enthalpy of dissolution for NaOH is -44.51 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 7 views

A student wants to calculate the corrosion rate of a zinc electrode in contact with a copper electrode, with a measured current of 0.5 amperes and a surface area of 2 cm². Given that the standard reduction potentials for copper and zinc electrodes are +0.34 V and -0.76 V, respectively, what is the corrosion rate of the zinc electrode in millimeters per year? (Assume a density of 7.14 g/cm³ for zinc and a Faraday constant of 96,500 coulombs per mole).

answered Jan 22 in ElectroChemistry

1 answer 9 views

When did informed consent become a requirement for human research?

asked Jan 17 in Psychology

1 answer 10 views

What is a false alarm in signal detection theory?

asked Jan 17 in Psychology

1 answer 53 views

What is the trait theory?

asked Jan 13 in Psychology

1 answer 20 views

Which gas is responsible for global warming?

asked Jan 8 in Science

1 answer 26 views

What is a disease in which the immune system makes an inflammatory response to a harmless antigen?

answered Jan 6 in Science

1 answer 23 views

What compounds contain only carbon and hydrogen?

answered Jan 6 in Science

1 answer 33 views

Name the law that determines as to which rock layers are younger or older than others.

answered Dec 31, 2024 in Science

...