Suppose a boil water notice is sent out advising all residents in the area to boil their water before drinking it or using it for cooking. You need to boil 10.5 L10.5 L of water using your natural gas (primarily methane) stove. What volume of natural gas is needed to boil the water if only 17.3%17.3% of the heat generated goes towards heating the water. Assume the density of methane is 0.668 g/L0.668 g/L, the density of water is 1.00 g/mL1.00 g/mL, and that the water has an initial temperature of 22.1 °C22.1 °C. Enthalpy of formation values can be found in this table. Assume that gaseous water is formed in the combustion of methane.

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Basic Chemical Calculations (Process and Variables)

A basic chemical calculation involves the application of the law of chemical proportions to various reactions and material and energy balance calculations on various chemical processes. Basic chemical calculation helps students analyze various chemical processes and develop problem-solving skills. The chemical manufacturing processes are divided into unit operations involving physical changes of material and unit processes involving the chemical transformation of materials. For instance, fluid flow, heat transfer, and mass transfer are unit operations, and oxidation, reduction, and pyrolysis are unit processes.