Asap read the balance and use this data to determine the density of a sample. the sample displaced 65.6 ml of water. mass = g density = g/cm3

Mass of the of sample using the balance is 433.2 g
You can estimate the decimal part because it not exactly 3
400 + 30 + 3.2 

To find the density of the sample you divide mass / volume = density

Mass = 433.2 and Volume = 65.6ml                433.2 g / 65.6
                                                                                 
                                                                             6. 6 g/ml^3    
 
 Density = 6.6 g / ml^3   and Mass = 433.2 g                                        

A.(nh4)(2co3)is the correct answer