Acertain weak base has a kb of 8.00 × 10-7. what concentration of this base will produce a ph of 10.00?

Kb =8.0  x  10^-7
Ph =10.00
POH   =14-10.00=4
(OH-)  =  10^POh
(OH-)  is  therefore=10^-4=1  x10^-4
let  the  base  be  represented  by   letter  B
therefore  the   equation  for  reaction  is  therefore=
B  +  H2O  >HB+   +   OH-
Kb=( HB+) (OH)/b
8.0  x 10^-7 = { (  1  x10^-4)(1 x10^-4)}/  b
8.0 x10^-7= 1  x10^-8 /b
multiply  both  side  by  b
=8.0 x  10^-7b =1  x 10^-8
divide  both  side  by    8.0  x  10^7
concentration  of  b  is  therefore=0.01225M

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy

It is a body of knowledge gained  using  inquiry and experimentation