Question

two moles of kclo3 weight​

Answer 1

KClO3's Molecular weight= 122.5

mole= mass/m.w.

mass = mole × m.w.

mass = 2 × 122.5

mass = 245gm

Answer 2

Explanation:

hey one mole of kclo3 will weight = weight of k + weight of cl + weight of 3×O since one mole has 3 oxygens

by caluclating it wieghts = 122.5g/mole

now it asked 2 moles so multiply it with 2

which gives 245

weight of one 'k' = 39

weight of one 'cl' = 35.5

weight of one 'o' = 16

just add

one mole of any compound weight is called its molar mass

To get wieght of n moles of that compound just multply n moles with molar mass of the compound.

Molar mass of the compound can be found by just adding the molar mass of each atom in the compound like i did for kclo3

hope you understod mate .....