How many moles of chloride ions are present in a 150.0 ml solution of cacl2 that has a concentration of 0.340 m?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

How many moles are in 123.0 grams of kclo4?

Achemical reaction is done in the setup shown , resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?