cocentration term

When the initial cocentration of the reaction is doubled, the half-life is also doubled. The order of the reaction will be :

Minerals cannot be only passively absorbed by root because: (a) Membrane in permeable to ions (b) Cocentration of minerals in soil is lower (c ) Minerals are present in soil as charged particles

Assertion (A): For the reaction RCl + NaOH(g) rarr ROH + NaCl , the rate of reaction is reduced to half on reducing the cocentration of RCl to half. Reason (R ): The rate of the reaction is represented by k[RCl] , i.e., it is a first order reaction.

The cocentration of solute in four cells is 0.4m. They are placed in four separate containers I,II,III and IV filled with saline water of concentrations 0.1M,0.4M,2M and 3M respectively. In container will the cell swell?

What are the cocentrations of H^+, HSO_4^(-), SO_4^(2-) and H_2SO_4 in a 0.20 M solution of sulphuric acid ? Given : H_2SO_4 Leftrightarrow H^(+)+ SO_(4)^(2-) , K_(2)=10^(-2)M

The following equilibrium exists in a closed vessel in 1L capacity A(g)+3B(g)hArr4C(g) initial cocentration of A(g) is equal to that B(g) . The equilibrium concentration of A(g) and C(g) are equal. K_(c) for the reaction is

A solid sphere of radius a and mass m is surrounded by cocentric spherical shell of thickness 2a and mass 2m the gravitational field at a distance 3a from their centres is