12.1 g cocl3 calculate the amount, in moles

Number of moles of CoCl3 =  0.09 moles

Explanation:

Given data:

Mass of CoCl₃ = 12.1 g

Number of moles = ?

Solution:

First of all we will calculate the molar mass.

Molar mass of CoCl3 = 28.01 + (35.5×3)

Molar mass of CoCl3 = 28.01 + 106.5

Molar mass of CoCl3 = 134.51 g/mol

Number of moles of CoCl3 = mass / molar mass

Number of moles of CoCl3 = 12.1 g/134.51 g/mol

Number of moles of CoCl3 =  0.09 moles

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock