In the lab, a student fills a dry 50 ml graduated cylinder with 20 ml of water. the mass of the water in the graduated cylinder was 19.795 grams at 25°c. what is the true volume of the water measured in the graduated cylinder? the density of water at 25°c is 0.99707 g/ml.

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

Apush or pull that moves or changes and object when to objects touch