Question

The mass of an empty density bottle is 30 g, it is 75 g when filled completely with water and 65 g when filled completely with a liquid. Find
(a) volume of density bottle
(b) density of liquid
(c) relative density of liquid
(4 Points)​

Answer 1

Answer:

(a) volume of density bottle = mass of water 45g

(b)density of liquid =0.77g/cm3

(c)relative density of liquid = 0.77

Explanation:

mass of empty density bottle m1 = 30g

mass of bottle+ water m2= 75 g

mass of liquid m3 = 65g  

mass of water = m2 - m1 = 75-30 = 45g

a) vol of density bottle = mass of water is 75g

b) density of liquid

              D= mass of liquid/mass of water = 35/45

mass of liquid = m3-m1 =65-30 = 35 g

               D = mass of liquid /mass of water = 35/45 =0.77g/cm3.

c) mass of water in the density bottle = 75 - 30 =45g

volume pf water in the density  bottle = 45cc and mass of equal vol of liquid density bottle =65-30=35g

             RD of liquid =mass of 45cc of liquid/mass of 45cc of water = 35/45=7/9 = 0.77