Ethyne, C2H2, is a common fuel used in the welding industry. The equation for the complete combustion of ethyne is given below.2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(ℓ) ∆rH = –2610 kJ mol–1Calculate the mass of C2H2(g) needed to release 11400 kJ of heat energy. M(C2H2) = 26.0 g mol–1

Which mathematical relationship should you us to convert moles of a substance into grams

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Acontainer holds 35.8 moles of gas under 10.0 atm of pressure at 70.0 c. what is the volume of the container?