The density of a liquid can be determined by weighing a known volume of the liquid in a graduated cylinder. the data from the experiment is as follows: weight of cylinder 10.4 grams; weight of cylinder and liquid 11.7 grams; reading from cylinder 6.2 ml. calculate the density of this liquid using the data.

- density of the liquid is 0.21 gram per mL.

Solution:-

From given data, mass of cylinder = 10.4 g

mass of cylinder along with liquid = 11.7 g

So, mass of liquid = 11.7 g - 10.4 g = 1.3 g

Volume of liquid = 6.2 mL

Let's divide the mass by the volume to get the density of the liquid:

density =

So, the density of the liquid is 0.21 gram per mL.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

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