Question

how many particles are there in 1.43g of a moleculat compound with a gram molecular mass of 233g

Answer 1

Answer:

1.43g of compound (GMM=233g) contains 3.69×10²¹ particles.

Explanation:

Given that,

         mass of compound = 1.43g

molar mass of compound = 233g/mol.

the formula to find the number of moles is

           number of moles = given mass / molar mass

⇒                                       = 1.43/233 = 6.14×10⁻³ mol.

1 mole of a substance contains 6.022×10²³ particles.

number of particles present in the compound  is given by,

number of particle = number of moles× Avogadro's Number

⇒                               =6.14×10⁻³  × 6.022×10²³ = 3.69×10²¹

Hence, the required answer is 3.69×10²¹