1. the rast method for determining molar masses uses camphor as the solvent. camphor melts at 178.4 °c, and its large kf (37.7 k kg mol-1) makes it especially useful for accurate work. a sample of an unknown substance that has a mass of 0.664 g reduces the freezing point of 25.0 g of camphor to 173.6 °c.

what is the molar mass of the unknown compound?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Which terms are used to identify pure substances

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by