4.3 moles of Ra(OH)2 to grams

Calculate the molar mass of the compound
Ra(OH)2 = 260.0 g/mol
Now use this rule
n= m/M
m= nM = ( 4.3 mole)(260g/mol)
= 1118 g
Now sig fig
1100 g

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o