A 60.0-L airbag needs to be filled with nitrogen gas. If the gas is going to be at 25∘C25^{\circ} \mathrm{C}25∘C and at a pressure of 1.00 atm1.00 \mathrm{~atm}1.00 atm, how many moles of nitrogen gas are needed? How many grams of nitrogen gas (N2)\left(\mathrm{N}_2\right)(N2) are needed?
Strong bases other than those mentioned here for the deprotonation of alkynes were introduced earlier. Two examples are potassium tert-butoxide and lithium diisopropylamide (LDA). Would either (or both) of these compounds be suitable for making ethynyl anion from ethyne? Explain, in terms of their pKa\mathrm{p} K_{\mathrm{a}}pKa values.
Imagine that scientists introduced a disease into the rabbit population of Australia, and the rabbit population crashed. Was the crash caused by a density-dependent or density-independent limiting factor? Justify your answer.
This exercise concerns a computer network with 60 switching nodes. The network is designed to withstand the failure of any 2 nodes. In how many ways can such a failure occur?