Recent content by Raheelp

k, going with it heh. I do believe it is initial because we have no post-reaction data.

The questions asks us to: Determine the molar concentration of I- in a reaction mixture. The reaction was as follows (data): 20 mL of .1 M KI 0 mL of .1 M KCl 10 mL of .003 M Thiosulfate 20 mL of .10 M Persulfate I did the following: 20 ml I- x (1 L / 1000 mL) = .02 L I- .02 L I- x (.1 mol /...

1. A swimmer heads directly across a river, swimming at 1.7 m/s relative to the water. She arrives at a point 44 m downstream from the point directly across the river, which is 76 m wide. (a) What is the speed of the river current? 1 m/s (b) What is the swimmer's speed relative to the...

Now I'm confused with what formula I can use. I think I'll have to get walked through the problem at the workshops on Monday. Thanks guys... Sorry I couldn't do anything with your expertise.

Yeah I can't do B, I fail at this. So far I have this: For segment 1 I have a = 0 t = .45 d = x v0 = ? v = ? Segment 2 a = -6.7 t = ? d = 3.8 - x v0 = ? v = 0 Do I solve for v0 in segment two, and put that in segment 1 to find d... ?

So for B: 3.8 m = segment 1 d + segment 2 d ?

OK ty on question A it was obvious.. Question B I am trying right now. The equations we use are the usual three of motion and utilize average speed, average velocity.

Question A: This one is easy but my answer is coming out wrong, maybe my signs are wrong. The question is as follows: A ball is launched directly upward from ground level with an initial speed of 19 m/s. How many seconds after launch is the ball 8 m above the release point? I set...

Question A: This one is easy but my answer is coming out wrong, maybe my signs are wrong. The question is as follows: A ball is launched directly upward from ground level with an initial speed of 19 m/s. How many seconds after launch is the ball 8 m above the release point? I set...