Recent activity by ShelliSpivak

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Calculate the standard enthalpy change (∆H°) for the dissolution reaction of 5.00 grams of sodium chloride (NaCl) in 100.0 mL of water, given that the final temperature of the solution was 25.0°C and the heat capacity of the solution was 4.18 J/g°C. The molar mass of NaCl is 58.44 g/mol and the density of water is 1.00 g/mL.

answered 2 days ago in Chemical thermodynamics

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How can liquid chromatography be used to determine the amount of caffeine present in a sample of coffee?

answered Jan 29 in Analytical Chemistry

1 answer 4 views

Where can we find evidence for the convergent validity of a theory in organisational psychology?

asked Jan 16 in Psychology

1 answer 16 views

According to intersectionality theory, how are multiple social identities such as race, gender, and sexuality intertwined and impact human sexuality?

asked Jan 16 in Psychology

1 answer 13 views

According to the Health Belief Model, what are the four factors that determine our health behaviours?

answered Jan 16 in Psychology

1 answer 27 views

What is the dual-process theory of moral judgment?

asked Jan 14 in Psychology

1 answer 25 views

What is the cognitive load theory?

answered Jan 14 in Psychology

1 answer 21 views

What are the stages of Kegan's constructive developmental theory?

asked Jan 14 in Psychology

1 answer 22 views

What is the difference between psychodynamic and humanistic theories of personality?

asked Jan 13 in Psychology

1 answer 15 views

What is extinction in behaviourism?

answered Jan 13 in Psychology

1 answer 20 views

What is object relations theory?

asked Jan 13 in Psychology

1 answer 35 views

What type of fertilization do most reptiles have?

asked Jan 8 in Science

1 answer 8 views

What kind of planet do we consider ceres to be?

asked Jan 7 in Science

1 answer 24 views

What is the vector sum of all the torques acting on the object called?

asked Jan 7 in Science

1 answer 19 views

What is produced during the light reactions in photosynthesis?

answered Jan 6 in Science

1 answer 49 views

How many different types of taste neurons does the tongue contain?

asked Dec 30, 2024 in Science

1 answer 53 views

How does carbon dioxide chemically weather rocks?

asked Dec 30, 2024 in Science

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