Determine the mass of an object that, when places in a 25-ml graduated cylinder containing 14 ml of water, causes the level of the water to rise to 19 ml. the object has a density of 3.2 g/ml. how do you set up the equation?

The mass of the object is 16 g.

Explanation:

Density is defined as the mass contained per unit volume.

Given : Mass of object = ?

Density of the object =

Volume of the object = Volume of water displaced =(19-14) ml = 5 ml

Putting in the values we get:

Thus the mass of the object is 16 g.

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"

if you're asking what comes out, it's steam.