ONE MINTEDDD An unknown solution is tested with the three indicators above. The results were: yellow with methyl orange, green with bromothymol blue and clear in phenolphthalein. The solution is __1__ with a pH of approximately __2__.
acidic 3.8
acidic 6.2
basic 6.2
basic 8.0

the millers tale is the answer.

the answer is 0.42 is that is an option. this question provides no info

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.