I2 is stable as a gas, and can vaporize from the standard solution if it is left open too long. Imagine that your I2solution were left open to the air long enough that a significant quantity of I2was lost. How would this affect your calculated value of the mass of vitamin C in the tablet

Temperature and pressure

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Your awser would be a acetone

The mole ratio of hydrogen to ammonia is 3: 2.