Copper has a density of 8,96 g/cm2 The amount of 75,0 g of copper is added to 0,0500 litres of water in a graduated cylinder. The volume reading to which the water level in 118 cylinder will rise in mililitres is (a).

Volume reading rise to 58.37 mL

Explanation:

Given data:

Density of copper = 8.96 g/cm³

Amount of copper = 75.0 g

Volume of water in cylinder = 0.0500 L

Volume rise = ?

Solution:

First of all we will calculate the volume of copper. The volume rise up is equal to the volume of copper.

Formula:

d = m/v

8.96 g/cm³ = 75.0 g/ v

v =  75.0 g / 8.96 g/cm³

v = 8.37 cm³

cm³ = mL

Volume of water = 0.0500 L × 1000 mL / 1L

Volume of water = 50 mL

Volume reading rise to = 50 mL +  8.37 mL

Volume reading rise to 58.37 mL.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.