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.
<u>Answer:</u> The mass of barium chloride is 2.88 grams
<u>Explanation:</u>
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