What is the density of a block of unknown material with a mass of 17.71-g if the

Question

What is the density of a block of unknown material with a mass of 17.71-g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 2.4 cm What is the density of a 18.55-g object if the dimensions of the block are: length = 12.6 mm height = 6.1 cm width = 0.014 m What is the density of a 40.81-g irregularly shaped object if the initial volume of water was 23.9-mL and the volume rose to 61.7- mL after the object was added? A volume of water was delivered using a buret and experimentally determined to have a mass of 1.60-g. What was the final volume of water on the buret if the inital was 0.83-mL? [assume the density of water is 1.00g/mL] Identify the following chemical using the information provided below: initial buret reading: 1.2-mL final buret reading: 10.5-mL mass: 8.184-9 Question 5 options: None are correct Ethanol: d 0.789 gml. Benzene: d-0.880 g/mL Water: d = 0.9982 g/mL

Explanation / Answer

Ans 1 :

Density = mass / volume

Volume = length x breadth x height

= 2.2 x 1.7 x 2.4

= 8.976 cm3

So putting all the values we get :

= 17.71 / 8.976

= 1.973 g/cm3

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