A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of the water, flask, and metal is 268.5 g. If the mass of the flask is 139.3 g and the density of water is 1.000 g/ml, the density of the solid is __________ g/cm³. A)0.366 B)1.56 C)0.641 D)2.73 E)3.21

Question

Quizplus · Accepted Answer

To find the density of the solid, first calculate the mass of the water: 268.5 g (total mass) - 139.3 g (flask) - 4.369 g (metal) = 124.831 g of water. Since the density of water is 1 g/ml, the volume of water is 124.831 ml. The volume of the metal is the total volume minus the volume of water: 126.4 ml - 124.831 ml = 1.569 ml. Density of the metal = mass/volume = 4.369 g / 1.569 ml = 2.783 g/cm³, which rounds to 2.73 g/cm³.

A 4369 G Sample of Metal Is Placed in a Flask