Max+Perez+Lab+16

Max Perez Methods Section: Lab #16:

To determine the mystery hydrates identity, a series of steps were taken. Two cool crucibles were weighed to find the mass, then a small amount of mystery substances were separately added to each crucible. The substances were observed while inside of the crucible, then the mass of the crucibles with the substance inside of them were calculated, and by subtraction the weight of the mystery hydrates were determined. The contents of both crucibles were heated on two separate burners for precisely one minute, and after they cooled the weight was once again calculated. The amount of water lost was calculated, and that became the percent composition of water. The percent compositions of the two mystery hydrates were compared to the calculations done before the lab, and they were both identified correctly.