How many moles are there in 987 grams of Ra(OH)2? id also love to know the simplest equation for converting moles --> so i co

Question

skelet666 [1.2K]

3 years ago

8

How many moles are there in 987 grams of Ra(OH)2? id also love to know the simplest equation for converting moles --> so i co

uld practice on my own :)

Chemistry

1 answer:

OlgaM077 [116] · Answer 1 · 2022-08-17T20:16:08+03:00

Mole = $\frac{mass}{molar mass}$

Mass of Radium Hydroxide = 987g
Molar Mass of $Ra(OH) _{2}$ = ((226) + (2 * 16) + (2 * 1))
= 260 g / mol

∴ Moles of <span> $Ra(OH) _{2}$ = </span> $\frac{987 g }{ 260 g / mol }$
= 3.796 mols