Hello! Can somebody please help me solve/understand these with work? Thank you so much!

When 2 moles of NH3 is produced 46 kJ of energy is released. How much energy would be released when 8 moles of NH3 is produced?

How many grams of ammonia (NH3) can be made from 21.0 grams of nitrogen gas (N2)?

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

Geothermal energy for industrial use is available almost anywhere. a.true b.false

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.