Question

1O Exponent is 22 of an element `X` are found to have a mass of 930g mg. Calculate the molar mass of the element`X`??

Answer 1

If 10²² mol of element X weighs 930 mg ,find its Molar mass :

As Number of moles = given mass /Molar mass

Given mass of element X = 930 mg

Number of moles = 10²² mol

So, Molar mass = number of moles / given mass

= 930 × 10 ^-3/ 10²²

= 93 $\times$10^-25 g