Ans 3 :
Mol potassium carbonate = mass / molar mass
= 9.00 g / 138.205 g/mol = 0.0651 mol
each mol potassium carbonate makes 2 mol potassium bromide
so mol of potassium bromide = 2 x 0.0651 mol = 0.130 mol
Mass of potassium bromide = mol x molar mass
= 0.130 mol x 119.002 g/mol
= 15.5 g
3. If 9.00 grams of potassium carbonate was used in the reaction, how many grams of...
2. If 9.00 grams of potassium carbonate was used in the reaction, how many grams of carbon dioxide would be obtained?
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