Recent activity by EveretteSher

1 answer 34 views

Here's a precise problem for the student to solve: Calculate the standard enthalpy change for the neutralization of 50 mL of 0.10 M hydrochloric acid (HCl) with 50 mL of 0.10 M sodium hydroxide (NaOH) at 25°C, given that the specific heat capacity of the solution is 4.18 J/(g °C) and the density of the solution is 1.00 g/mL.

answered 1 day ago in Chemical thermodynamics

1 answer 62 views

What is the concentration of iron (II) ions in a solution if the absorbance reading from the colorimeter is 0.43 and the path length of the solution in the cuvette is 1 cm? The molar absorption coefficient of iron (II) ions is 6.16 x 10^3 M^-1 cm^-1. The solution has a volume of 10 mL. Calculate the concentration of iron (II) ions in the solution in units of Molarity.

asked 6 days ago in Analytical Chemistry

1 answer 49 views

How can X-ray fluorescence spectroscopy be used to identify the presence of specific elements in a sample, and what factors affect the accuracy and precision of this analytical technique?

asked 6 days ago in Analytical Chemistry

1 answer 33 views

What is the frequency of sound waves perceived by humans?

answered Jan 20 in Psychology

1 answer 42 views

Who is more likely to perceive discrimination?

asked Jan 20 in Psychology

1 answer 29 views

What is the difference between intuition and insight?

answered Jan 17 in Psychology

1 answer 20 views

According to the cognitive load theory, why do individuals have limited mental resources?

asked Jan 17 in Psychology

1 answer 16 views

Please discuss the methodology of the STM vs LTM debate.

answered Jan 16 in Psychology

1 answer 7 views

According to the signal detection theory, how do we make decisions when we are uncertain?

asked Jan 15 in Psychology

1 answer 50 views

What are some key factors that influence group dynamics?

asked Jan 14 in Psychology

1 answer 34 views

When does the nucleus divide?

answered Jan 8 in Science

1 answer 19 views

What is the process where light bounces back from surfaces that it cannot pass through?

asked Jan 7 in Science

1 answer 71 views

If a machine only changes the direction of a force without changing the ratio of the output/input forces, then what is its associated mechanical advantage?

asked Dec 30, 2024 in Science

1 answer 22 views

Animal-like protists are called what?

asked Dec 30, 2024 in Science

1 answer 47 views

What are a group of protists whose monophyly is well supported by molecular systematics?

answered Dec 27, 2024 in Science

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