Question

S, WE amilies a 100 ml gradu Density of an Object by Displacement of Water Earlier today / marwed the density of a metal ball by displacement of water using a 100 ml cylinder and centrame balance. First, obrained the mass of the ball. Next, I added water to a graduated onder and measured the initial volume of water. Then, I gently dropped the ball into water and measured the new wolne of water. Below is the data from my experiment. Calculate the density of the metal ball. Show your work. Mass of metal ball: Initial volume of water: 47.6 mL Final volume of water: 49.9 mL D 8.05 g Percent Water in a Hydrate A sample of nickel(II) chloride hexahydrate (6.84 g) was heated to a constant mass to yield 3.73 R of the anhydrous compound. Calculate the percent water in the hydrate. Show your work. NiCl-6H2O → NiCl + 6H2O

Answer 1

Answer

can be calculated using = mass of volume metal ball of water displaced 8.059 49.9 me - 47.6 me. - 8.05 g 2.3 me 3.5 g/me & 640 Nice 640 - Nich 6.Bug 3-739 mass of water released - 3.738 Mars of Mass of Nich. Otto - Nich = 6.84 g - 3.73 g 0 of water in hydrate a mass of water x 100 mars of Nich. 640 - 3.119 X 100 6.84 g - 50.48 01