WebApr 16, 2024 · (number of molecules) × ( 1 mole 6.02× 1023molecules) × ( grams mole M olarM ass) H 2O2 is 34g/mole (6.03 × 1020molecules) × ( 1 mole 6.02× 1023molecules) × ( 34g mole) = 0.034gH 2O2 It is the exact same setup for the others - but with different molar masses and different numbers of molecules to start. Answer link WebJun 18, 2024 · The molar mass is used to convert grams of a substance to moles and is used often in chemistry. The molar mass of an element is found on the periodic table, and it is the element's atomic weight in …
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WebJan 31, 2024 · It's easier to work with grams, so convert the mass: 5.988 kg = 5988 g. As you already know how the grams to moles conversion work, find the number of moles: n = 5988 g / 18.015 g/mol = 332.4 mol. You … WebOnline calculator, figures and tables showing density and specific weight of methane, CH 4, at temperatures ranging from -160 to 725 °C (-260 to 1300 °F) at atmospheric and higher pressure - Imperial and SI Units. Density, ρ, has units typically [kg/m3] or [lb/ft3], and is defined by the ratio of the mass to the volume of a substance ... small engine wholesale distributors
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WebFeb 22, 2024 · There are 1.8021 ⋅ 1024 molecules of CH 4 in 48 grams of CH 4. Explanation: To answer this question, you must understand how to convert grams of a molecule into the number of molecules. To do this, you have to utilize the concepts of moles and molar mass. A mole is just a unit of measurement. WebJul 10, 2016 · DeltaH = -"389 kJ" The problem provides you with the thermochemical equation that describes the combustion of methane, "CH"_4 "CH"_ (4(g)) + 2"O"_ (2(g)) -> "CO"_ (2(g)) + 2"H"_ 2"O"_ ((l))" "DeltaH = -"890.3 kJ mol"^(-1) Notice that the thermochemical equation includes the enthalpy change of combustion, which as you … small engine wholesale