The equation for the pH of a substance is pH = -log(H'), where H+ is the concentration of hydrogen ions. Which equation
models the concentration of hydrogen ions (H+) of a solution whose pH is 7.2?
[H-] = log72
[H+] = -log7.2
[H"] = 10-72
[H*] = 1072

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation:

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.