Recent activity by MartyKindler

1 answer 28 views

How does the rate of reaction vary with respect to the orientation of reactant molecules? Provide experimental evidence to support your answer.

answered Feb 22 in Chemical kinetics

1 answer 22 views

What is the electronegativity difference between the oxygen atom and the hydrogen atom in a molecule of water (H2O)?

answered Feb 20 in Chemical bonding

1 answer 23 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their biological activity and function?

asked Feb 19 in Coordination Chemistry

1 answer 35 views

How does the presence of metallic nanoparticles enhance the Raman signal in Surface-enhanced Raman spectroscopy (SERS) and what factors influence the enhancement efficiency?

asked Feb 17 in Surface Chemistry

1 answer 23 views

How can we design drugs for treating type 2 diabetes by targeting specific enzymes involved in glucose metabolism?

answered Feb 12 in Medicinal Chemistry

1 answer 37 views

How can the practical applications of chemistry be better emphasized in the education system to prepare students for real-world applications of their knowledge? Provide practical examples of how chemistry concepts can be applied in everyday life.

asked Feb 10 in Chemical education

1 answer 42 views

How can chemical concepts, such as chemical bonding and reaction kinetics, be applied to the process of making a particular medicine or drug? Use real-world examples and explain the role of chemistry in the development and production of the medication.

asked Feb 4 in Chemical education

1 answer 71 views

Determine the zeta potential of silver nanoparticles using the electrophoretic mobility measured at different pH values ranging from 3 to 9.

asked Feb 4 in Surface Chemistry

1 answer 73 views

Determine the maximum monolayer coverage of nitrogen gas on a silver surface in Langmuir units if the partial pressure of nitrogen gas is 2.5 atm at 298 K. The area per molecule of nitrogen adsorbed on the silver surface is known to be 1.55×10^-19 m^2 according to experimental data.

answered Feb 4 in Surface Chemistry

1 answer 114 views

How can we increase the interest and engagement of high school students in chemistry to improve their academic performance and future career prospects in the field?

asked Jan 30 in Chemical education

1 answer 101 views

What techniques or strategies can a chemistry student use to better understand complex chemical concepts, and how can these be incorporated into their study habits and practice?

asked Jan 30 in Chemical education

1 answer 73 views

How can Raman spectroscopy be used to identify the presence of caffeine in a sample?

answered Jan 29 in Analytical Chemistry

1 answer 129 views

Calculate the activation energy of the following electrochemical reaction: 2Fe^3+(aq) + 2I^-(aq) → 2Fe^2+(aq) + I2(s) Given that the reaction rate constant at 25°C is 1.0 × 10^-3 s^-1, and the reaction's activation energy follows the Arrhenius equation with a pre-exponential factor of 8.0 × 10^7 s^-1.

asked Jan 23 in ElectroChemistry

1 answer 103 views

A chemistry student needs to quantify the amount of iron (II) ions in a sample using colorimetry. The sample was prepared by dissolving a known mass of iron (II) sulfate in water, and the solution was diluted to a known volume. The student needs to determine the concentration of iron (II) ions in the original solution by measuring the absorbance of the sample using a colorimeter, and then using calibration curves to convert the absorbance to concentration. The student also needs to calculate the percentage error of the experiment and suggest ways to improve the accuracy of the results.

answered Jan 22 in Analytical Chemistry

1 answer 88 views

A chemistry student needs to calculate the equilibrium constant for the following reaction:2 H2O(g) ⇌ 2 H2(g) + O2(g)The student has the initial concentration of H2 and O2 as 0.25 M and the initial concentration of H2O as 1.00 M. After the system reaches equilibrium, the student measures the concentration of H2 as 0.10 M. Using this information, what is the value of the equilibrium constant, Kc, for the above reaction?

asked Jan 22 in Chemical reactions

1 answer 53 views

According to research, what happens when we are presented with too many choices?

asked Jan 20 in Psychology

1 answer 82 views

According to the H.M. case study, which area of the brain is important for long-term memory?

asked Jan 20 in Psychology

1 answer 56 views

What is the difference between a t-test and an ANOVA?

answered Jan 17 in Psychology

1 answer 82 views

When evaluating a theory, what is the criterion for falsifiability?

asked Jan 17 in Psychology

1 answer 75 views

Who developed the theory of Maslow's hierarchy of needs?

asked Jan 16 in Psychology

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