Calculate the Mass of Sodium Cyanate (NaOCN, Molar Mass =

Calculate the mass of sodium cyanate (NaOCN, molar mass = 65.0066 g mol^-1) required to lower the temperature from 24.1 °C to 23.0 °C in a coffee cup calorimeter containing 98 mL of water. The enthalpy of solution for NaOCN is 19.20 kJ mol^-1. The specific heat of water is 4.184 J g^-1 °C^-1 and assume the density of the solution is 1.00 g mL^-1.

A) 0.75 g
B) 1.1 g
C) 3.8 g
D) 1.5 g
E) 4.8 g