Prove that relation between S. I unit of energy and commercial unit of energy

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

What type of nuclear decay causes the atomic number of an element to increase by 1?

What is a good example of instantaneous speed