A chemist adds of a barium chloride solution to a flask. Calculate the mass in grams

The question is incomplete, here is the complete question:

A chemist adds 50.0 mL of a 0.277 M barium chloride solution to a flask. Calculate the mass in grams of barium chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

The mass of barium chloride is 2.88 grams

Explanation:

To calculate the mass of solute, we use the equation used to calculate the molarity of solution:

Given mass of barium chloride = ? g

Molar mass of barium chloride = 208 g/mol

Molarity of solution = 0.277 M

Volume of solution = 50.0 mL

Putting values in above equation, we get:

Hence, the mass of barium chloride is 2.88 grams

When energy is added to a boiling liquid, the temperature of the liquid does not change. In fact, the added energy is used to break bonds between the liquid molecules and let them escape from the liquid itself, allowing the phase change into a gas. More generally, during a phase change the temperature of the system does not change.

Explanation:For instance, when water is boiling, adding heat does not increase its temperature. This happens at the boiling temperature of every substance that can vaporize. ... When energy is added to a liquid at the boiling temperature, its converts the liquid into a gas at the same temperature.