Propene. what does the name of this hydrocarbon tell you about it’s molecular structure?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

May someone me with these science questions

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?