Recent activity by LaurelDumas

1 answer 20 views

How does the addition of clay nanoparticles impact the mechanical properties of a polymer matrix?

asked 5 days ago in Polymer Chemistry

1 answer 31 views

How can Fourier Transform Infrared Spectroscopy (FTIR) be used to identify different functional groups present in a polymer sample and how can the information obtained from FTIR spectra assist in characterization of the polymer?

asked Feb 6 in Polymer Chemistry

1 answer 39 views

Design a process for the purification of 500 grams of crude aspirin containing impurities such as acetic acid and sulfuric acid. The final product must have a purity of at least 99.5%. Describe the steps involved in the purification process, including the necessary equipment, reagents, and conditions for each step. Also, calculate the percent yield of the final product based on the initial mass of crude aspirin.

answered Feb 4 in Chemical engineering

1 answer 82 views

What is the concentration of a copper(II) ion (Cu2+) solution using polarography if the current at -0.5 V vs. saturated calomel electrode (SCE) is 10 mA and the current at -1.0 V vs. SCE is 25 mA, assuming the standard reduction potential of Cu2+/Cu is +0.34 V vs. SCE and the supporting electrolyte is 0.1 M KCl?

answered Jan 30 in Analytical Chemistry

0 answers 41 views

Who proposed the specificity theory?

asked Jan 16 in Psychology

1 answer 26 views

What is the critique of the self-determination theory of motivation?

answered Jan 16 in Psychology

1 answer 27 views

Where does theory evaluation fit in the research process?

answered Jan 16 in Psychology

1 answer 90 views

Which perspective suggests that behaviour is influenced by social, cultural, and economic factors?

asked Jan 15 in Psychology

1 answer 32 views

What is the main argument of the developmental systems perspective?

answered Jan 15 in Psychology

1 answer 28 views

What is the prevalence of eating disorders?

answered Jan 15 in Psychology

1 answer 37 views

Who first discovered the moons of jupiter in 1610?

asked Jan 8 in Science

1 answer 28 views

What are the mass of threadlike filaments on the body of a fungus called?

asked Jan 3 in Science

1 answer 69 views

Like the strings of cello, anything that vibrates produces waves of what?

asked Dec 28, 2024 in Science

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