Wind energy in the U. S. generated abo ut 74 million megawatt hours of electricity in 2009. This quantity increased at an approximately constant rate and reached about 254 million megawatt hours by 2017. Estimate how many more megawatt hours were generated from wind in 2020 than in 2016.

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.