Calculate the ratio of Hions to OHions at a pH = 6. Find the concentration of * ions to OH ions listed in
Table B of your Student Guide. Then divide the H
concentration by the OH concentration. Record this
calculated ratio in Table A of your Student Guide.
Compare your approximated and calculated ratios of H*
ions to OH ions at a pH = 6. Are they the same? Why or
why not? Record your explanation in Table A.
What is the concentration of H* ions at a pH = 6?
mol/L
What is the concentration of OH”ions at a pH = 6?
mol/L
What is the ratio of ions to OH ions at a pH = 6?

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.