The density of seawater at a free surface where the pressure is 98kPa is approximately 1030kg/m^3. Taking the bulk modulus of elasticity of seawater to be 2.34 x 10^9 N/m^2 and expressing variation of pressure with depth z as dP= density * gravity * dz determine the density and pressure at a depth of 2500m. Disregard the effect of temperature.