If a particular ore contains 58.8 % calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosphorus?

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

An experimental procedure requires a 10 ml of acid to be dissolved

In 2002, the rare earth elements mine in mountain pass, california was closed because