Rb2CO3 for rubidium carbonate
Okay, the anhydrate that weighs 5.24g (after heating) is pure rubidium carbonate (Rb2CO3) so the 6.88g represents the molar mass of the hydrated crystal. Set up an algebraic direct proportion: 6.88/x = 5.24/(molar mass of Rb2CO3) which is 231g/mol. Solve for x to get 303.3. Subtract out the anhydrate mass: 303.3 - 231 = 72.3. Now divide that number by water's molar mass, which is 18g/mol: 72.3/18 = 4, so the formula of the hydrate crystal is Rb2CO3-4H2O.
COVALENT
covalent
covalent
Rb2CO3 for rubidium carbonate
Examples: Li2CO3, Na2CO3, K2CO3, Cs2CO3, Rb2CO3.
Rubidium Chromate = Rb2CrO4
Okay, the anhydrate that weighs 5.24g (after heating) is pure rubidium carbonate (Rb2CO3) so the 6.88g represents the molar mass of the hydrated crystal. Set up an algebraic direct proportion: 6.88/x = 5.24/(molar mass of Rb2CO3) which is 231g/mol. Solve for x to get 303.3. Subtract out the anhydrate mass: 303.3 - 231 = 72.3. Now divide that number by water's molar mass, which is 18g/mol: 72.3/18 = 4, so the formula of the hydrate crystal is Rb2CO3-4H2O.
covalent
COVALENT
covalent
No, it is covalent
covalent
This is an ionic compound.
Nitrogen trichloride is a covalent compound.
The compound is ethanol and is a covalent compound.