heba
This page lists questions and answers that were posted by visitors named heba.
Questions
The following questions were asked by visitors named heba.
calculate the ph of a 0.18 M NH4CL and0.18 M NH4OH.(Kb=1.0x10^-5)
15 years ago
a solution consisting of 5.0 gm of an organic solute per 25 gm of CCl4 boils at 81.5 degree celecius .what is the molecular weight of the solute? If the boiling point is 76.8 degree celecius and Kb of CCl4 is 5.02 .
15 years ago
A certain spring elongates 9 mm when it is suspended vertically and a block of mass M is hung on it. The natural frequency of this mass-spring system is: a)0.014 b)5.3Hz c)31.8Hz d)181.7Hz e)need to know M please explain the answer....and hope to answer s...
15 years ago
Answers
The following answers were posted by visitors named heba.