1) Fired crucible is handled with oily fingers before its mass measurement. Subsequently, in part b.1, the oil from the fingers is burned off. Will the percent water in the hydrated salt be reported as being too high, too low, or unaffected ? Explain please
2) During the cooling of the fired crucible, water vapor condensed on the crucible wall before its mass measurement. The condensation did not occur following thermal decomposition of the hydrated salt in part b. Will the percent water in the hydrated salt be reported as being too high, too low , or unaffected ? Explain.
3) The crucible is handled with oily fingers after its mass measurements but before the 3g sample of the hydrated salt be reported as being too high, too low or unaffected ? Explain