ionic
How much solid Na2S2O3 should be added to 1.0 L of water so that 0.0005 mol Cd (OH2) could just barely dissolve?K1 and K2 for S2O3-- complexation with Cd++ are 8.3 × 10^3 and 2.5 × 10^2, respectively. Ksp (Cd(OH)2 = 4.5 × 10–15
ques in case photo is not clear...
String Constraint NLM Physics
A block agar x1 neeche jaa tha hai to l3 me bhi x1 ka extension hoga aur jitna A Block neeche jayega to wo l3 ke through conncected hai jiski wajah se l4 ko bhi x1 uor aana chahiye fir wo x2 upr kyu aa rha hai?
gravitation
we know the formulas for gravitational field strength and gravitational field strength on the axis of a ring. in this case are ring and particle/pt in the same plane ?? acc to me it isnt.
how to derive for same plane ?...
Physics Geometry Doubt
How is r = 1/root3
this is an equilaterl Triangle with side 2 and that point C is the centroid...
Basic Rotaton Question
i cant understand can someone explain
first of all in slipping wont there be friction? so a = g(sin0 - ucos0) 0 = thetha
and i cant understand the formula they used in without slipping...
Chemical Kinetics
how do I even begin this question
what should my mindset be when I try to approach such a question?...
Nuclear physics (not exam related)
In the Chernobyl reactor, if the control rods were used to absorb/slow down the neutrons, then why can't we just use the stuff the rods were made out of to reduce the radiations of the dangerous areas? Like throw a chunk of that stuff in a radioactive area to reduce the rads.. will that work?
gravitation
a satellite goes along an elliptical path around the earth the rate of change of arc length a swept by the satellite is proportional to r^x . determine x
ph
amt of (nh4)2so4 to be added to 500 ml 0.1M nh4oh to prepare a buffer of ph 9.56. pka of nh4+ is 9.26
where am i going wrong...
1d motion
Let's say a object travels distance h , with acc a starting from rest
H = 1/2at^2
t = root [2ah]
...
WPE+ Circular
in this question Tmax = 5 Tmin
so Tmin = mg/5
at highest position T is giving centripetal acc
mg/5 = mv2/r
v2 = gr/5 = 2...
ionic
in which of the following case(s) solubility of ch3cooag would be less than that in pure water at 25 deg celsius