What is the concentration of phosphate ions in a 2.5 M aqueous solution of phosphoric acid if the pH of the solution is 0.87 at 25 ºC?Ka1 = 7.5×10–3, Ka2 = 6.2×10–8, and Ka3 = 4.2×10–13.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.