Recent activity by PenniSalaam4

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Calculate the standard enthalpy change for the reaction where 3 moles of hydrogen gas react with 1 mole of nitrogen gas to form 2 moles of ammonia gas. Given the following thermochemical equation: N2(g) + 3 H2(g) → 2 NH3(g) ΔH° = −92.4 kJ/mol

asked 2 days ago in Chemical thermodynamics

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How can X-ray diffraction be used to determine the composition of a sample, and what are the advantages and limitations of this technique for analyzing a material's structure and properties?

answered 6 days ago in Analytical Chemistry

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Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) if it releases 5184 kJ/mol of energy.

answered Jan 23 in ThermoChemistry

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Assume a reaction where magnesium (Mg) reacts with chlorine (Cl2) to produce magnesium chloride (MgCl2). If we start with 10 grams of magnesium and 20 grams of chlorine, what mass of magnesium chloride can we produce?

answered Jan 22 in Chemical reactions

1 answer 35 views

Where did discursive psychology emerge from?

asked Jan 15 in Psychology

1 answer 20 views

Explain the development of the Minority Stress Model

answered Jan 15 in Psychology

1 answer 24 views

What is the definition of 'working memory'?

answered Jan 13 in Psychology

1 answer 27 views

What is the difference between the framing effect and priming?

asked Jan 13 in Psychology

1 answer 27 views

Which is the fourth planet from the sun?

answered Jan 8 in Science

1 answer 22 views

Solid bedrock vibrates less and therefore does less of what to bedrock?

asked Dec 31, 2024 in Science

1 answer 32 views

What do chemotrophs extract energy from?

answered Dec 28, 2024 in Science

1 answer 21 views

Regardless of the mode, light is modeled as traveling in straight lines called what?

asked Dec 27, 2024 in Science

1 answer 10 views

What helps screen libraries for a gene of interest using nucleic acid hybridization?

answered Dec 27, 2024 in Science

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