| Moles question
Hi, can anyone help solve this questions
Q) A compound of mass 2.41g is obtained when 1.77g of coblt is reacted with oxygen. The emperical formula of the compund is ?
and
Q) Excess dilute sulfuric acid was added to 3.00g of Calcium Carbonate to form Calcium sulfate, carbon dioxide and water. Calculate the masses of:
A) sulfuric acid consumed
B) carbon dioxide produced
C)Calcium sulfate formed.
and lol..i know its alot.... but i was wandering how do u recognise from the formula, if the forumla is a molecule?
thanks!! |