According to the Law of Conservation of Matter, how many grams of products can be expected if the total mass of the reactants is 50 grams? (assume no errors)
A. 50g
B. half as much
C. more than 50g
D. about 10g

Iam not going to tell you

Ithink that one is (c)

Ans(15) minutes;

  the volume of  0.220 m k2s    solution  required  to  completely  react with 175 ml  of 0.115m co(no3)2  calculate the moles  of co(no3)2 =  molarity x volume/1000175 x0.115/1000= 0.02  moleswrite  the reacting  equationk2s(aq)  +  co(no3)2  = 2 kno3(aq)  + cos(s)by  use  of mole ratio between k2s to co(no3)2 which  is  1: 1 the moles of k2s is therefore = 175  x0.115/1000= 0.02  molesvolume = moles/molarity=0.02/0.22=0.09  ml  of k2s