Answers by LynetteEspin

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Here's a problem for you to solve:What is the enthalpy change (∆H) for the combustion of methane (CH4) to form carbon dioxide (CO2) and water (H2O) based on the following information?CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l) ∆H = -890.4 kJ/molYou have a sample of methane and you want to determine the heat released or absorbed during combustion. How much heat is produced when you burn 5.00 grams of methane (CH4) at a constant pressure of 1 atm, assuming that the products are carbon dioxide (CO2) and water (H2O) and that the heat capacity of the calorimeter is negligible?

answered 1 day ago in Physical Chemistry

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What are the most effective strategies to help students better understand complex chemical concepts such as atomic structure and molecular bonding?

answered 6 days ago in Chemical education

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Calculate the heat of hydration for magnesium ion when 0.5 moles of magnesium chloride is dissolved in 500 ml of water at 25°C. Given that the enthalpy change of solution for magnesium chloride is -641 kJ/mol and the specific heat capacity of water is 4.18 J/g°C.

answered Jan 23 in ThermoChemistry

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A chemistry student is given an unknown compound and is asked to identify its molecular formula using mass spectrometry. The compound has a molecular ion peak at m/z 86 and fragments at m/z 43 and 58. What is the molecular formula of the unknown compound?

answered Jan 22 in Analytical Chemistry

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How can Positive Psychology contribute to end-of-life care?

answered Jan 20 in Psychology

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answered Jan 15 in Psychology

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What is the role of sex education in promoting healthy sexual development?

answered Jan 14 in Psychology

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What is the most prevalent gas in the atmosphere, but not the most vital for life?

answered Jan 7 in Science

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What is the most important way that humans communicate?

answered Jan 7 in Science

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What works by providing a lower energy pathway from reactants to products?

answered Dec 27, 2024 in Science

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