Arigid steel container with a volume of 100.0 liters is filled with nitrogen gas to a pressure of 30 atmospheres at 295 kelvins. how many moles of nitrogen gas does the cylinder contain

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.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!