What is generated by a spectroscope in flame emission spectroscopy?

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

Which best explains why an iceberg floats?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same