Questions by DortheaRow65

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1 answer 36 views

Calculate the entropy change of the following reaction at 25°C and 1 atm pressure:2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g)Given the standard entropy values are:ΔS°NH3 = 192.5 J/K•molΔS°Cl2 = 223.1 J/K•molΔS°N2 = 191.6 J/K•molΔS°HCl = 186.9 J/K•mol

asked Jan 23 in Chemical thermodynamics

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1 answer 67 views

A chemistry student is given a 10 mL sample of a solution containing chloride ions and sulfate ions, and is asked to determine the mass of each ion present in the sample. The student knows that the total mass of the solution is 12.25 g, and that the density of the solution is 1.225 g/mL. The student also knows that the mass percent of chloride ions in the solution is 5%, and the mass percent of sulfate ions is 10%. Using mass balance calculations, what is the mass of chloride ions and sulfate ions present in the sample?

asked Jan 22 in Analytical Chemistry

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1 answer 58 views

What is the term used to describe the idea that people are more likely to help someone if they perceive the situation as an emergency?

asked Jan 20 in Psychology

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1 answer 29 views

What is the definition of the bystander effect?

asked Jan 20 in Psychology

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1 answer 57 views

What is the difference between In-Group and Out-Group in LMX Theory?

asked Jan 15 in Psychology

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0 answers 5 views

Who proposed the self-serving bias?

asked Jan 15 in Psychology

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1 answer 41 views

What type of blood vessels carry blood away from the heart?

asked Jan 8 in Science

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1 answer 37 views

What organism is at the top of the energy pyramid?

asked Jan 7 in Science

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1 answer 24 views

Where does oxygen enter the blood?

asked Dec 27, 2024 in Science

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