When one litre of a saturated solution of `PbCl_(2)` (mol. Mass=278) is evaported, the residue is found to weight 2.78g. If `K_(sp)` of `PbCl_(2)` is represented as `yxx10^(-6)` then find the value of y.
What is the pH of a saturated solution of Cu(OH)_(2) ? (K_(sp)=2.6xx10^(-19)
What is the molarity of a saturated solution of CaCO_(3) ? (K_(sp)=2.8xx10^(-9))
If solubility of AgCl in 0.2 M solution of AgNO_(3) is represented as yxx10^(-10) then find the value of y. ("Given": K_(sp(AgCl))=10^(-10))
A solution is saturated in SrCO_(3) and SrF_(2) The CO_(3)^(2-) was found to be 10^(-3) mol/L. If the concentratuonof F^(-) in solution is represented as yxx10^(-2) M then what is the value of y ? ["Given" : K_(sp)(SrCO_(3))=2.5xx10^(-10),K_(sp)(SrF_(2))=10^(-10)]
If the angle between the two lines represented by 2x^2+5x y+3y^2+6x+7y+4=0 is tan^(-1)(m), then find the value of m .
If ax-2y-1=0 and 6x-4y+b=0 represent the same line, find the values of a and b.
If x=1,y-2 is a solution of 2x+3y=k, find the value of k.
If x=2,y=1 is a solution 3x+2y=k, find the value of k.
If x=2k-1 and y=k is a solution of the 3x-5y-9=0 find the value of k.
If the equation px^(2)+(2-q)xy+3y^(2)-6qx+30y+6q=0 represents a circle, then find the values of p and q.
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions