TIME LIMIT HELP
A sulfuric acid solution of unknown molarity is titrated with 2.450 M lithium hydroxide solution. The titration requires 0.0625 L of the lithium hydroxide solution to reach the equivalent point with 30.00 mL of the sulfuric acid solution. What is the molarity of the acid solution?

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.