And here's the flask

Question

A flask has a mass of 54.12 g when empty and 180.27 g when filled with water. the density at 22.1°C is 0.997747 g/ml. when the same flask is filled with an unknown liquid, the total mass of the flask and liquid is 142.145g. What is the density of the unknown liquid?

 

so far I have:

 

Mass= 180.27g - 54.12g

Mass of unknown liquid= 142.145g - 54.12g

 

and yeah...that's all I have......

Answer 1

Density = Mass/Volume

 

Mass of Water =180.27 - 54.12 = 126.15 g

Volume of the flask = 126.15 g/0.997747 g/ml = 126.435 ml

 

Mass of the unknown liquid = 142.145 - 54.12 = 88.025 g

 

Density of the unknown liquid = (88.025 g)/(126.435 ml) = _________? at 22.1^oC