1.Calculate the density of N2 at 30Celsuis. 2. How many ppm is in a space from 100m^3 is 15g NH3 present (density 0.75 g/l)
3. If we burn 100L methane, how much CO2 will be formed. (First note the reaction, then the calculate under standard circumstances)
4. 10L of gas A mixes with 5L of gas B. How do you calculate the mass percent of gas A

29 g/mlTo convert ppm to molarity, or molarity to ppm, you only need to know one thing: the molar mass of the dissolved element or molecule. If you take molarity (with units mol/L), and multiply it by the molar mass (with units g/mol), you get g/LWhen methane burns in the air it has ... concentration is much less than that of carbon dioxide, methane is 28 times ... natural sinks can ... radicals are a form of “sink” First the ideal gas law will be used to solve for the moles of unknown gas (n). Then the mass of the gas divided by the moles will give the molar mass. Step 2: Solve. Now divide g by mol to get the molar mass.

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