In part C of this experiment, it is possible that some of the unknown solid did not dissolve in the solvent. If this happened, after all other parts of the experiment had been done correctly, what would be the effect on the freezing point with the unknown present? How would the calculated molar mass change for the unknown solid? Specifically state whether the molar mass of the unknown would be erroneously high or erroneously low.

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size