A sample of a compound weighing 416 grams decomposes into 143 grams of iron and 273 grams of chlorine. The percent composition of these products is *blank* iron and *blank* chlorine. Using these values, we can determine that the empirical formula of the compound is Fe*blank* Cl *blank*

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]