Jill and Susan were absent when the instructions were given for the lab investigation. They gathered their materials and watched their classmates see what to do, not taking the time to read the instructions. Explain how Jill and Susan violated safety procedures.

Jill and Susan violated safety procedures by not properly listening and/or reading over the instructions to know all the materials, steps, and equipment they need for the lab. Hope this helps!

The answer this would be radiative zone

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m