Question

Which four quantities a, b, c and d are required to balance the equation ...aLi2O(s) + bHCl(aq) ==> cLiCl(aq) + dH2O(l) ?

Answer 1

Answer:

by calculating percentage error

Explanation:

y=P=cda3b2a=1%;b=2%;c=3%;d=4%

PΔP×100%=a3Δa+2bΔb+CΔC+dΔd=3[1%]+2[2%]+3%+4%=3%+4%+3%+4%=14%

 Error in P=±14%

Answer 2

Answer:

value of a=1 , b=2 , c=2 and d= 1

Explanation:

we just simple balance the above chemical equation.

like Li2O + HCl --> LiCl + H2O.

l. h.s =the number of H is one less and on right hand side one Li is less .

therefore we put ww put 2 in front of LiCl know Li is balanced but Cl get increased. So we put 2 in front of HCl this will balance the number the H and Cl both. So, equation is balanced.

the final equation is

Li2Cl + 2HCl --> 2LiCl + H2O.