Data were collected for trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclohexane.

mass of cyclohexane 10.14g
mass of added solute .255g
kf value for cyclohexane 20.0
freezing point change δtf(°c) 3.04

what is;
mass of cyclohexane in solution (kg)
moles of solute, total (mol)
mass of solute in solution, total (g)
molar mass of solute (g/mol)

Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

Which of the following electromagnetic waves can create ions?

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand