How many moles are there in `34.5` g of sodium ? (Atomic mass of `Na = 23 u`)

How many moles are present in 11.5 g of sodium ?

How many moles are present in 11.5 g of sodium?

How many moles are present in 11.5 g of sodium?

How many moles are 5 grams of calcium ? (Atomic mass of calcium = 40 u ).

(a)How many moles are present in 11.5g of sodium? (b)The mass of an atom of element (X) is 2.0xx10^(-23)g . Calculate its atomic mass.

Sodium crystallizes in i bcc unit cell. CaICulate the approximate no. of unit cells in 9.2 grams of sodium. (Atomic mass of Na = 23 u).

Sodium crystallizes in a body-centred cubic (bcc) unit cell. Calculate the approximate number of unit cells in 9.2g of sodium. (Atomic mass of Na = 23u).