Calculate K. for the unknown weak acid. The freezing point depression constant (K) for water is 1.86 °C/m.

Express your answer using two significant figures.

Using data from the table, calculate the freezing and boilingpoints of each of the following solutions.

A) freezing point of 0.240mol of naphthalene (C10H8)in 2.35mol of chloroform

Express your answers using three significant figures.

B) boiling point of 0.240mol ofnaphthalene (C10H8) in 2.35mol of chloroform

Express youranswers using three significant figures.

C) freezing point of 2.04g KBr and 4.84g glucose (C6H12O6) in187g of water

Express your answers using one significant figures.

D) boiling point of 2.04g KBr and 4.84g glucose (C6H12O6) in187g of water

Express your answers using four significant figures.

E) freezing point of 1.40g NaCl in 0.255kg of water

Express your answers using one significant figure.

F) boiling point of 1.40g NaCl in 0.255kg ofwater

Express your answers using four significant figures.

An aqueous solution containing 36.2 g of an unknown molecular (non-electrolyte) compound in 152.4 g of water was found to have a freezing point of -1.4 ∘C

Calculate the molar mass of the unknown compound.

Express your answer using two significant figures.

A 0.115 M solution of a weak acid (HA) has a pH of 3.29.

Calculate the acid ionization constant (Ka) for the acid.

Express your answer using two significant figures.