please solve and explain both. Please explain the I principle and how you find it, thank you!

The boiling point of water is 100.0C at 1 atmosphere. How many grams of aluminum chloride (133.3g/mol), must be dissolved in 291.0 grams of water to raise the boiling point by 0.300C ? Refer to the table for the necessary boiling or freezing point constant. Mass = g aluminum chloride The freezing point of water H2O is 0.00C at 1 atmosphere. freezing point by 0.500C ? 9 cobalt(II) lodide