Recent content by Plutonium88

I don't entirely understand what you are saying in the post. What I am taking from what you said is when you mix KOH and KBr the reaction of OH and H happens as a result, which can be shown from the net ionic equation right? What I'm trying to find though, is an initial concentration of H+ so...

I'm going to restate the question with the given information, can you tell me if I am on the right track? In an experiment 0.5L of 0.020 mol/L of KOH is rapidly mixed with an equal volume of 0.020 mol/L of HBr. What is the initial concentration of H+. I Specifically need the concentration of...

Sorry for placing this in the wrong thread. So basically find the limiting reagent between KOH And KBR, to determine the concentration of H2O from that, and then using H2O to find the concentration of OH? Then using the water autodissociation Kw = 1*10^(-14)mol^2/L^2 (assuming room...

If I have a balanced chemical reactoin, for example KOH + HBr ==> H2O + KBr And I am given the concentration and volume of both KOH and HBr, how is it possible to determine the concentration of one of the ions from the net ionic equation? H + OH ==> H2O

So in the limiting case where R2 -> 0 you just end up with the other resistance?

So I was doing a circuit with some friends, and the circuit breaks down such that There is what looks like a parallel circuit, with one branch containing just the wire, and the other branch containing a resistor. The answer to the question shows that the electrons will not flow through this...

Question: Considering the effect of an Earth sized plaent transiting a star, and blocking its light. How big will the change in ABSOLUTE birghtness be for different stellar classs O and A, if we subtract off this blocked light. telescopes can detect very small changes in brightness...

would it make it more simple if i chose a different frame of reference.

Ahh I see.. Fnety=zg=FN-zgcosA FN=2zg/cosA Ans; 2zgtanA/(z+P)

Homework Statement a mass z is held on an incline plane with mass P. when the the masses are released, both objects begin to move and accelerate. find accell of the incline plane GIVEN: z,P,angle A, surfaces are frictionless solve in terms of these variables. Homework Equations f=ma...

and then use cosine law with the angle.. Also was a type for the formula mac=mv^2/R , it was indicated in the beginning.

a) vavg = 2*pi**R*F cause velocity is the same at every point in circular motion b) ac = V^2(avg)/R d)Δθ=ΔS/R where S is my distance from C (S2-S1)/R = S2/R

so since its 1/3 of the distance V=D/T => V (D/3)/T =(2PiR*f)/3 units are wanted in m/s^2 M*ac = V^2/R ac = (((D/(3/4))^2/T)/R

Homework Statement a planet with radius of 12km spins at 520revs/s find: a) avg speed of a point on the planets equator over 2.5 of a revolution b)find avg acceleration on stars circumfrance over 3/4 of a rev c)find distance covered by point on the equator in 1 second d) find displaement...

I'm sorry for the tardy reply, perhaps the way i explained what i said doesn't make sense So the reason her number is different than mine is because she didn't replace g with GMe/Re^2 so (mgh)/(GmMh/Re(Re+H)) = 101 / 100 So h = (101*G*M)/(100*g*Re) - Re = 63200.37 So because she...