Please help does anybody know how to calculate the molar mass of a compound?

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

Define a is a tiny pavket of energy

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe